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Kabir MHB, Kato K. Comprehensive molecular epidemiology of Cryptosporidium species in Japan. Parasitol Int 2024; 102:102909. [PMID: 38945736 DOI: 10.1016/j.parint.2024.102909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/05/2024] [Accepted: 05/20/2024] [Indexed: 07/02/2024]
Abstract
Cryptosporidium species, causing diarrheal illnesses in humans and animals worldwide, are under investigation for their molecular epidemiology in Japan. The study focuses on detecting Cryptosporidium species in humans, animals, water, and the environment, revealing three species in people: C. parvum, C. meleagridis, and C. hominis. Subtype IIa of the C. parvum gp60 gene is prevalent, indicating potential zoonotic transmission. Animal studies identified sixteen species, mainly cattle and pets, with C. parvum (subtype IIa) common in cattle and C. canis and C. felis prevalent in pets. Additionally, C. bovis and C. ryanae were found in cattle and sika deer. Knowledge gaps exist, particularly in water and environmental source typing, with limited research revealing five species and five genotypes, suggesting a significant role of water in transmission. Further research is needed to understand the molecular diversity and transmission dynamics across humans, animals, water, and the environment in Japan.
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Affiliation(s)
- Mohammad Hazzaz Bin Kabir
- Laboratory of Sustainable Animal Environment, Graduate School of Agricultural Science, Tohoku University, Osaki, Miyagi, Japan; Department of Microbiology and Parasitology, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, Bangladesh
| | - Kentaro Kato
- Laboratory of Sustainable Animal Environment, Graduate School of Agricultural Science, Tohoku University, Osaki, Miyagi, Japan.
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Athukorala N, Wickramasinghe S, Yatawara L, Weerakoon K. A Systematic Review of Zoonotic Disease Prevalence in Sri Lanka (2000-2022). Vector Borne Zoonotic Dis 2024; 24:453-472. [PMID: 38775108 DOI: 10.1089/vbz.2023.0141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024] Open
Abstract
Background: The burden of zoonotic diseases in developing countries is significantly underestimated, influenced by various factors such as misdiagnosis, underreporting, natural disasters, climate change, resource limitations, rapid unplanned urbanization, poverty, animal migration, travel, ecotourism, and the tropical environmental conditions prevalent in the region. Despite Sri Lanka's provision of a publicly funded free health care system, zoonoses still contribute significantly to the burden of communicable diseases in the country. This study serves as a timely and exhaustive systematic review of zoonoses reported over the past 22 years in Sri Lanka. Materials and Methods: This systematic review adhered to the guidelines provided by the "Preferred Reporting Items for Systematic Reviews and Meta-Analyses" (PRISMA) statement. A systematic literature search was conducted between July and September 2022, utilizing the following databases and sources: Google Scholar, PubMed, Cochrane Library, Weekly Epidemiological Reports, and Rabies Statistical Bulletins published by the Ministry of Health, Sri Lanka. Results: From the initial database search, 1,710 articles were identified. After excluding nonzoonotic diseases, duplicated reports, inaccessible articles, and those not meeting the inclusion criteria, 570 reports were evaluated for eligibility. Of these, 91 reports were selected for data extraction, comprising 58 original research articles, 10 case reports, 16 weekly epidemiological reports, and 7 rabies statistical bulletins. Over the study period (2000-2022), 14 parasitic, 7 bacterial, and 7 viral zoonoses have been reported in Sri Lanka. Notably, leptospirosis emerged as the most reported zoonotic disease in the country. Conclusions: In response to these findings, we strongly recommend the implementation of a tailored, country-specific prevention and control program. To achieve this goal effectively, we emphasize the importance of adopting a country-specific "One Health" approach as a comprehensive framework for managing and controlling zoonotic diseases in Sri Lanka.
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Affiliation(s)
- Nadeesha Athukorala
- Department of Parasitology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Susiji Wickramasinghe
- Department of Parasitology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Lalani Yatawara
- Deparment of Medical Laboratory Science, Faculty of Allied Health Sciences, University of Peradeniya, Peradeniya, Sri Lanka
| | - Kosala Weerakoon
- Department of Parasitology, Faculty of Medicine and Allied Sciences, Rajarata University of Sri Lanka, Mihintale, Sri Lanka
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Feng K, Yang S, Xu Y, Wen L, Chen J, Zhang W, Chen S, Shen Y, Xiao L, Guo Y, Feng Y, Li N. Molecular characterization of Cryptosporidium spp., Giardia spp. and Enterocytozoon bieneusi in eleven wild rodent species in China: Common distribution, extensive genetic diversity and high zoonotic potential. One Health 2024; 18:100750. [PMID: 38798737 PMCID: PMC11127529 DOI: 10.1016/j.onehlt.2024.100750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 04/23/2024] [Accepted: 05/06/2024] [Indexed: 05/29/2024] Open
Abstract
Cryptosporidium spp., Giardia spp. and Enterocytozoon bieneusi are common zoonotic pathogens in humans and animals. Although rodents are important parts of the ecosystem and common hosts for these pathogens, little is known of the distribution, genetic diversity and zoonotic potential of these pathogens in wild rodents. A total of 442 fecal samples were collected from eleven wild rodent species in three provinces of China, and analyzed for these pathogens by PCR and DNA sequencing. The infection rates of Cryptosporidium spp., Giardia spp. and E. bieneusi were 19.9% (88/442), 19.8% (75/378) and 12.2% (54/442), respectively. Altogether, 23 known Cryptosporidium species/genotypes were identified and their distribution varied among different sampling locations or rodent species. Subtyping of the zoonotic Cryptosporidium species identified two novel subtype families XVe and XVf in C. viatorum, the subtype family XIIh and a novel subtype family XIIj in C. ubiquitum, and the subtype family IId in C. parvum. Three Giardia species were identified, including G. microti (n = 57), G. muris (n = 15) and G. duodenalis (n = 3), with G. duodenalis assemblages A and G identified in brown rats in urban areas of Guangdong. In addition, 13 E. bieneusi genotypes including eight known and five novel ones were identified, belonging to Groups 1, 2, 10, 14 and 15. Within nine genotypes in the zoonotic Group 1, common human-pathogenic genotypes D, Type IV, PigEbITS7 and Peru8 were detected only in brown rats and Lesser rice-field rats in urban areas of Guangdong. Apparent host adaptation and geographical differences were observed among Cryptosporidium spp., Giardia spp. and E. bieneusi genotypes in wild rodents in the present study. Furthermore, the zoonotic Cryptosporidium species and E. bieneusi genotypes commonly found here suggest a high zoonotic potential of these pathogens in wild rodents, especially in brown rats in urban areas. Hygiene and One Health measures should be implemented in urban streets and food stores to reduce the possible direct and indirect transmission of these rodent-related pathogens.
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Affiliation(s)
- Kangli Feng
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Shenghua Yang
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Yanhua Xu
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Luxing Wen
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Jia Chen
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Wenbao Zhang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang, China
| | - Shouyi Chen
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, Guangdong, China
| | - Yongyi Shen
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Lihua Xiao
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Yaqiong Guo
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Yaoyu Feng
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Na Li
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, Guangdong, China
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Qin H, Lang J, Zhang K, Zhang A, Chen Y, Fu Y, Wang C, Zhang L. Study on genetic characteristics of Cryptosporidium isolates and first report of C. parvum IIdA24G2 subtype in dairy cattle in China. Parasitol Res 2024; 123:81. [PMID: 38165486 DOI: 10.1007/s00436-023-08107-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
Cryptosporidium is an important gastrointestinal parasite that can cause mild to severe diarrhea in various vertebrates, including humans and domestic animals. Infection is prevalent in dairy cattle, particularly calves, resulting in diarrhea and increased mortality with significant production losses. However, the prevalence and identity of Cryptosporidium spp. in cattle in Heilongjiang Province is still poorly known. Our study aimed to investigate the prevalence and species and subtype distribution of Cryptosporidium in cattle in the region. In addition, we evaluated the zoonotic potential of Cryptosporidium isolates and assessed possible transmission routes and health effects of this organism. We collected 909 fecal samples from five different farms in Heilongjiang Province between August and September 2022. The samples underwent Cryptosporidium detection by nested PCR and small subunit (SSU) rRNA gene sequence analysis. Four Cryptosporidium species were identified, including C. parvum, C. bovis, C. ryanae, and C. andersoni, with an overall prevalence of 4.4% (40/909). Based on sequence analysis of the 60 kDa glycoprotein gene of C. parvum and C. bovis, three subtypes of C. parvum were identified, namely two previously known subtypes (IIdA19G1 and IIdA20G1), and one novel subtype (IIdA24G2). Two distinct subtype families were identified in C. bovis (XXVId and XXVIe). The high diversity of Cryptosporidium in dairy cattle and the emergence of a novel subtype of C. parvum in Heilongjiang Province suggest that dairy cattle may serve as a significant source of zoonotic cryptosporidiosis infection in this region.
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Affiliation(s)
- Huikai Qin
- College of Veterinary Medicine, Henan Agricultural University, No. 15 Longzihu University Area, Zhengdong New District, Zhengzhou, 450046, People's Republic of China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, 450046, Henan Province, China
- Key Laboratory of Quality and Safety Control of Poultry Products (Zhengzhou), Ministry of Agriculture and Rural Affairs, Zhengzhou, People's Republic of China
| | - Jiashu Lang
- College of Veterinary Medicine, Henan Agricultural University, No. 15 Longzihu University Area, Zhengdong New District, Zhengzhou, 450046, People's Republic of China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, 450046, Henan Province, China
- Key Laboratory of Quality and Safety Control of Poultry Products (Zhengzhou), Ministry of Agriculture and Rural Affairs, Zhengzhou, People's Republic of China
| | - Kaihui Zhang
- College of Veterinary Medicine, Henan Agricultural University, No. 15 Longzihu University Area, Zhengdong New District, Zhengzhou, 450046, People's Republic of China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, 450046, Henan Province, China
- Key Laboratory of Quality and Safety Control of Poultry Products (Zhengzhou), Ministry of Agriculture and Rural Affairs, Zhengzhou, People's Republic of China
| | - Aihui Zhang
- Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural affairs, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang Province, People's Republic of China
| | - Yuancai Chen
- College of Veterinary Medicine, Henan Agricultural University, No. 15 Longzihu University Area, Zhengdong New District, Zhengzhou, 450046, People's Republic of China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, 450046, Henan Province, China
- Key Laboratory of Quality and Safety Control of Poultry Products (Zhengzhou), Ministry of Agriculture and Rural Affairs, Zhengzhou, People's Republic of China
| | - Yin Fu
- College of Veterinary Medicine, Henan Agricultural University, No. 15 Longzihu University Area, Zhengdong New District, Zhengzhou, 450046, People's Republic of China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, 450046, Henan Province, China
- Key Laboratory of Quality and Safety Control of Poultry Products (Zhengzhou), Ministry of Agriculture and Rural Affairs, Zhengzhou, People's Republic of China
| | - Chunren Wang
- Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural affairs, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang Province, People's Republic of China
| | - Longxian Zhang
- College of Veterinary Medicine, Henan Agricultural University, No. 15 Longzihu University Area, Zhengdong New District, Zhengzhou, 450046, People's Republic of China.
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, 450046, Henan Province, China.
- Key Laboratory of Quality and Safety Control of Poultry Products (Zhengzhou), Ministry of Agriculture and Rural Affairs, Zhengzhou, People's Republic of China.
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AlFaleh FA, Ismael SS, Aguilar-Marcelino L, Silva FEM, Ashraf T, Abbas RZ, Qamar W. Use of nanoparticles, a modern means of drug delivery, against cryptosporidiosis. J Adv Vet Anim Res 2023; 10:704-719. [PMID: 38370897 PMCID: PMC10868694 DOI: 10.5455/javar.2023.j726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/19/2023] [Accepted: 10/20/2023] [Indexed: 02/20/2024] Open
Abstract
Cryptosporidium is a primary cause of waterborne epidemics, despite being previously considered only an opportunistic pathogen. The disease is associated with significant economic losses in humans and animals that are brought on by diarrhea, which frequently causes dehydration. Contact with diseased people or animals, as well as polluted water, is the major cause of infection. Different drugs are used to control the parasites. Nitazoxanide (NTZ), which is an anti-protozoan and anti-viral drug, can be used to control helminths, viruses, and protozoan parasites as a broad-spectrum antibiotic and has been approved by the food and drug authority (FDA). However, the problem is the development of resistance over a period of time in these parasites. Nanoparticles have received significant attention as possible anti-parasitic agents in recent years. By directing medications to specific cellular locations, targeted drug delivery minimizes the side effects of medications. Nanoparticles have demonstrated effectiveness against different Cryptosporidium species. Nanoparticles loaded with NTZ are found to be an effective remedy for C. parvum in young ones and decrease the oocyst count shed in the stools. Additionally, silver nanoparticles have proven to be effective against C. parvum by releasing silver ions that breach the cell wall of the oocyst, causing the escape of intracellular contents and the destruction of sporozoites within the oocyst. Implementing tiny particles for the purification of consuming water from Cryptosporidium is an economical and environmentally sustainable process. However, the use of nanoparticles in medicine requires more research.
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Affiliation(s)
- Faleh A. AlFaleh
- Department of Biology, College of Science in Zulfi, Majmaah University, Majmaah, Saudi Arabia
| | - Shameeran Salman Ismael
- Medical Laboratory Sciences Department, College of Health Sciences, University of Duhok, Duhok, Iraq
| | | | | | - Tayyaba Ashraf
- Department of Parasitology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Rao Zahid Abbas
- Department of Parasitology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Warda Qamar
- Department of Parasitology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
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Yun CS, Moon BY, Lee K, Kang SM, Ku BK, Hwang MH. The detection and phylogenetic characterization of Cryptosporidium, Cystoisospora, and Giardia duodenalis of cats in South Korea. Front Cell Infect Microbiol 2023; 13:1296118. [PMID: 38029266 PMCID: PMC10663360 DOI: 10.3389/fcimb.2023.1296118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Cryptosporidium, Cystoisospora, and Giardia duodenalis are gastrointestinal protozoa parasites that cause diarrhea in various animals. However, information regarding the detection and phylogenetic characterization of gastrointestinal protozoa parasites in cats is limited throughout South Korea. Therefore, this study aimed to determine the detection and identify subspecies of gastrointestinal protozoa parasites in cats from South Korea. Methods A total of 290 fecal samples were collected from stray, companion, and shelter cats in six provinces. Cryptosporidium, Cystoisospora, and G. duodenalis were identified by PCR. All positive samples were subtyped by PCR and sequencing of gp60, ITS-1, tpi, bg, and gdh. Results The overall detection of gastrointestinal protozoan parasitic infection was 17.93%. G. duodenalis was the most prevalent, with 7.93%, followed by Cystoisospora spp. (7.24%) and Cryptosporidium spp. (4.48%). In addition, C. felis (n=10), C. parvum (n=2), C. ryanae (n=1), Cystoisospora felis (n=14), Cystoisospora suis (n=5), Cystoisospora ohioensis (n=1), Cystoisospora spp. were identified in subspecies analysis of positive samples. C. felis showed a significant association with diarrhea (7.81%) and living condition (6.04%), and Cystoisospora felis in diarreha (9.38%) according to detection. Through phylogenetic analysis of the tpi, bg, and gdh genes from 23 G. duodenalispositive samples, it was confirmed that the samples of present study belonged to assemblage A, B, C, and D. Discussion South Korean cats have a high rate of gastrointestinal protozoan parasites infection with cat-specific Cryptosporidium and Cystoisospora, which are associated with living conditions and diarrhea symptoms. Moreover, zoonotic and other animal-specific subtype of protozoan parasites have been detected in cat feces.
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Affiliation(s)
| | | | | | | | | | - Mi-Hye Hwang
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon-si, Republic of Korea
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Mirzaghavami M, Sadraei J, Pirestani M, Bahadory S. The Role of Some Free-Ranging Animals in the Transmission of Multi-Host Species of Cryptosporidium Spp. IRANIAN JOURNAL OF PARASITOLOGY 2023; 18:313-323. [PMID: 37886251 PMCID: PMC10597881 DOI: 10.18502/ijpa.v18i3.13754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 08/08/2022] [Indexed: 10/28/2023]
Abstract
Background We aimed to characterize Cryptosporidium spp. in rats, cats, pigeons, and crows. Methods Fifty-five animal origin Cryptosporidium spp. genome were identified, genotyped and confirmed by nested PCR and of RFLP-PCR analysis as well as sequenced based on 18s rRNA and gp60 genes in Tehran (2012-2019). Finally, the phylogenetic analysis was performed by MEGA software (version 7). Results By the molecular method, Cryptosporidium spp. were detected in 24 (15.2%), 15 (15%), 2 (2%) and 13 (13%) cases of wild rats, cat, pigeon, and crow, respectively. Among the identified species by the RFLP pattern, most isolates were identified as C. parvum (24/157) 17.8% in rats, (15/100) 15% in cats, (13/100) 13%in crew and (2/100) 2% in pigeons; and the rest of the cases were C. muris and C. felis. The results of sequencing did not prove the existence of C. parvum, C. felis, C. muris, and rat genotype. Subtyping of C. parvum was indicated that the dominant subtype family belongs to the IId family and the subtype A20G1 was the most common subtype detected in all hosts while A19G1 was detected in one isolate of cat and pigeon. Conclusion Free-ranging animals are infected by species/subtype of Cryptosporidium, which can infect humans. This shows by itself the hygienic importance of the free-ranging animals in urban ecosystems. In the transmission of human cryptosporidiosis, the multi-host Cryptosporidium species such as C. parvum, C. felis, and C. muris can be transferred potentially from these animals to humans.
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Affiliation(s)
- Mehran Mirzaghavami
- Department of Parasitology and Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Javid Sadraei
- Department of Parasitology and Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Majid Pirestani
- Department of Parasitology and Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeed Bahadory
- Department of Parasitology and Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Khalifa MM, Fouad EA, Kamel NO, Auda HM, El-Bahy MM, Ramadan RM. Dogs as a source for the spreading of enteric parasites including zoonotic ones in Giza Province, Egypt. Res Vet Sci 2023; 161:122-131. [PMID: 37379694 DOI: 10.1016/j.rvsc.2023.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/30/2023]
Abstract
To investigate the impact of domestic and stray dogs on the transmission of zoonotic and other parasites to humans in contact with them, fecal samples were collected from 80 domestic dogs that presented at a clinic with health disturbances and 220 randomly selected stray dogs housed in shelters. The parasitological examination of these samples revealed infection by six zoonotic and four non-zoonotic parasites in varying percentages. The zoonotic parasites included Ancylostoma caninum, Toxocara canis, Dipylidium caninum, Echinococcus granulosus, Cryptosporidium species, and Giardia cysts and trophozoites. The other parasites included Toxascaris leonina, Trichuris vulpis, Taenia species eggs, and Isospora canis oocysts. The infection rate was higher in stray dogs (60%) than in domestic dogs (40%). Infected dogs in both groups were generally unhealthy, with poor body condition recorded in 13.8% of domestic dogs and 63.6% of stray dogs. The infection rate was higher (92%) among shelter workers than among domestic dog owners (66.7%). Giardia assemblages A and D from dogs and assemblage A from humans, as well as two isolates of Cryptosporidium canis (C. canis), one from dogs and the other from humans, were submitted in the GenBank with the accession numbers OQ870443, OQ870444, and OQ919265 for Giardia and OQ917532 & OQ915519 for C. canis of dogs & human, respectively. In conclusion, domestic and stray dogs play an essential role in transmitting zoonotic parasites to humans in contact with them, and regular deworming and strict hygienic measures are recommended to minimize their impact on human health.
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Affiliation(s)
- Marwa M Khalifa
- Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, P.O. 12211, Giza, Egypt
| | - Ehab A Fouad
- Department of Zoonosis, Veterinary Research Institute, National Research Centre, Dokki, Giza, Egypt
| | - Nancy O Kamel
- Department of Parasitology, Faculty of Medicine, October 6 University, Egypt
| | - Hend M Auda
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, P.O. 12211, Giza, Egypt
| | - Mohamed M El-Bahy
- Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, P.O. 12211, Giza, Egypt
| | - Reem M Ramadan
- Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, P.O. 12211, Giza, Egypt.
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Hayes L, Robinson G, Chalmers RM, Ormerod SJ, Paziewska-Harris A, Chadwick EA, Durance I, Cable J. The occurrence and zoonotic potential of Cryptosporidium species in freshwater biota. Parasit Vectors 2023; 16:209. [PMID: 37344906 PMCID: PMC10283333 DOI: 10.1186/s13071-023-05827-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Protozoan pathogens from the genus Cryptosporidium cause the diarrhoeal disease cryptosporidiosis in humans and animals globally. Freshwater biota could act as potential reservoirs or zoonotic sources of Cryptosporidium infections for livestock and people, but Cryptosporidium occurrence in aquatic biota is largely unexplored. The aim of this study was to investigate the occurrence of Cryptosporidium in a range of freshwater organisms in upland rivers across England and Wales. METHODS Fish were sampled by electrofishing, invertebrate larvae by kick sampling and the otter Lutra lutra and mink Mustela vison through faecal samples collected opportunistically as part of a nation-wide study. PCR targeting the small subunit ribosomal RNA gene was used to detect Cryptosporidium species. RESULTS Cryptosporidium occurred in just 0.8% of all the samples and in none of 73 samples from nine invertebrate genera. Cryptosporidium was detected in two of 2/74 fish samples (2.7%), both salmonids, and in 2/92 otter faecal samples (2.17%), but there were no positive samples in mink (0/24) or the bullhead Cottus gobio (0/16). CONCLUSIONS Low detection rate of human-infective Cryptosporidium species in aquatic fauna indicates they may present a low risk of contamination of some upland freshwaters.
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Affiliation(s)
- Laura Hayes
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK.
| | - Guy Robinson
- Cryptosporidium Reference Unit, Public Health Wales Microbiology, Singleton Hospital, Swansea, SA2 8QA, UK
- Swansea Medical School, Swansea University, Swansea, SA2 8QA, UK
| | - Rachel M Chalmers
- Cryptosporidium Reference Unit, Public Health Wales Microbiology, Singleton Hospital, Swansea, SA2 8QA, UK
- Swansea Medical School, Swansea University, Swansea, SA2 8QA, UK
| | - Steve J Ormerod
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
| | - Anna Paziewska-Harris
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
- Lukasiewicz Research Network, PORT Polish Centre for Technology Development, Stablowicka 147, 54-066, Wroclaw, Poland
| | | | - Isabelle Durance
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
| | - Jo Cable
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
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Dashti A, Köster PC, Bailo B, de Las Matas AS, Habela MÁ, Rivero-Juarez A, Vicente J, Serrano E, Arnal MC, de Luco DF, Morrondo P, Armenteros JA, Balseiro A, Cardona GA, Martínez-Carrasco C, Ortiz JA, Carpio AJ, Calero-Bernal R, González-Barrio D, Carmena D. Occurrence and limited zoonotic potential of Cryptosporidium spp., Giardia duodenalis, and Balantioides coli infections in free-ranging and farmed wild ungulates in Spain. Res Vet Sci 2023; 159:189-197. [PMID: 37148738 DOI: 10.1016/j.rvsc.2023.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/11/2023] [Accepted: 04/20/2023] [Indexed: 05/08/2023]
Abstract
Little information is currently available on the occurrence and molecular diversity of the enteric protozoan parasites Cryptosporidium spp., Giardia duodenalis, and Balantioides coli in wild ungulates and the role of these host species as potential sources of environmental contamination and consequent human infections. The presence of these three pathogens was investigated in eight wild ungulate species present in Spain (genera Ammotragus, Capra, Capreolus, Cervus, Dama, Ovis, Rupicapra, and Sus) by molecular methods. Faecal samples were retrospectively collected from free-ranging (n = 1058) and farmed (n = 324) wild ungulates from the five Spanish bioregions. Overall infection rates were 3.0% (42/1382; 95% CI: 2.1-3.9%) for Cryptosporidium spp., 5.4% (74/1382; 95% CI: 4.2-6.5%) for G. duodenalis, and 0.7% (9/1382; 95% CI: 0.3-1.2%) for B. coli. Cryptosporidium infection was detected in roe deer (7.5%), wild boar (7.0%) and red deer (1.5%), and G. duodenalis in southern chamois (12.9%), mouflon (10.0%), Iberian wild goat (9.0%), roe deer (7.5%), wild boar (5.6%), fallow deer (5.2%) and red deer (3.8%). Balantioides coli was only detected in wild boar (2.5%, 9/359). Sequence analyses revealed the presence of six distinct Cryptosporidium species: C. ryanae in red deer, roe deer, and wild boar; C. parvum in red deer and wild boar; C. ubiquitum in roe deer; C. scrofarum in wild boar; C. canis in roe deer; and C. suis in red deer. Zoonotic assemblages A and B were detected in wild boar and red deer, respectively. Ungulate-adapted assemblage E was identified in mouflon, red deer, and southern chamois. Attempts to genotype samples positive for B. coli failed. Sporadic infections by canine- or swine-adapted species may be indicative of potential cross-species transmission, although spurious infections cannot be ruled out. Molecular evidence gathered is consistent with parasite mild infections and limited environmental contamination with (oo)cysts. Free-ranging wild ungulate species would not presumably play a significant role as source of human infections by these pathogens. Wild ruminants do not seem to be susceptible hosts for B. coli.
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Affiliation(s)
- Alejandro Dashti
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, Health Institute Carlos III, Majadahonda, Madrid, Spain
| | - Pamela C Köster
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, Health Institute Carlos III, Majadahonda, Madrid, Spain
| | - Begoña Bailo
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, Health Institute Carlos III, Majadahonda, Madrid, Spain
| | - Ana Sánchez de Las Matas
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, Health Institute Carlos III, Majadahonda, Madrid, Spain
| | - Miguel Ángel Habela
- Department of Animal Health, Veterinary Sciences Faculty, Extremadura University, Caceres, Spain
| | - Antonio Rivero-Juarez
- Infectious Diseases Unit, Maimonides Institute for Biomedical Research (IMIBIC), University Hospital Reina Sofía, University of Córdoba, Córdoba, Spain; Center for Biomedical Research Network in Infectious Diseases (CIBERINFEC), Health Institute Carlos III, Madrid, Spain
| | - Joaquín Vicente
- SaBio Group, Institute for Game and Wildlife Research, IREC (UCLM-CSIC-JCCM), Ciudad Real, Spain
| | - Emmanuel Serrano
- Wildlife Ecology & Health Group (WE&H), Wildlife Environmental Pathology Service (SEFaS), Department of Animal Medicine and Surgery, Autonomous University of Barcelona, Bellaterra, Spain
| | - Maria C Arnal
- Department of Animal Pathology, Veterinary Faculty, University of Zaragoza, Zaragoza, Spain
| | | | - Patrocinio Morrondo
- INVESAGA Group, Department of Animal Pathology, Faculty of Veterinary, University of Santiago de Compostela, Lugo, Spain
| | - José A Armenteros
- Council of Development, Territory Planning and the Environment of the Principado de Asturias, Oviedo, Spain
| | - Ana Balseiro
- Animal Health Department, Veterinary School, University of León, León, Spain; Animal Health Department, Mountain Livestock Institute (CSIC-University of León), León, Spain
| | | | - Carlos Martínez-Carrasco
- Animal Health Department, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum", Espinardo, Murcia, Spain
| | - José Antonio Ortiz
- Medianilla S.L., Department of Veterinary and Research, Benalup-Casas Viejas, Spain
| | - Antonio José Carpio
- Institute for Research on Hunting Resources, IREC (UCLM-CSIC-JCCM), Ciudad Real, Spain; Department of Zoology, University of Cordoba, Campus de Rabanales, Cordoba, Spain
| | - Rafael Calero-Bernal
- SALUVET, Department of Animal Health, Faculty of Veterinary, Complutense University of Madrid, Madrid, Spain
| | - David González-Barrio
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, Health Institute Carlos III, Majadahonda, Madrid, Spain.
| | - David Carmena
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, Health Institute Carlos III, Majadahonda, Madrid, Spain; Center for Biomedical Research Network in Infectious Diseases (CIBERINFEC), Health Institute Carlos III, Madrid, Spain.
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11
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Garcia-R JC, Pita AB, Velathanthiri N, Pas A, Hayman DTS. Mammal-related Cryptosporidium infections in endemic reptiles of New Zealand. Parasitol Res 2023; 122:1239-1244. [PMID: 36959486 PMCID: PMC10097775 DOI: 10.1007/s00436-023-07824-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 03/15/2023] [Indexed: 03/25/2023]
Abstract
New Zealand's endemic reptile fauna is highly threatened and pathogens causing infectious diseases may be a significant risk to already endangered species. Here, we investigate Cryptosporidium infection in captive endemic New Zealand reptiles. We found two mammal-related Cryptosporidium species (C. hominis and C. parvum) and six subtypes from three gp60 families (Ib, Ig and IIa) in 12 individuals of captive endemic Tuatara, Otago and Grand skinks, and Jewelled and Rough geckos. Cryptosporidium serpentis was identified in two Jewelled geckos using 18S. In New Zealand, C. hominis and C. parvum are associated with infections in humans and introduced domestic animals but have also been recently found in wildlife. Our finding of Cryptosporidium infection in endemic reptiles can help inform strategies to monitor the conservation of species and manage potential introductions of pathogens to in-situ and ex-situ populations.
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Affiliation(s)
- Juan C Garcia-R
- Molecular Epidemiology and Public Health Laboratory, Hopkirk Research Institute, Massey University, Private Bag 11-222, Palmerston North, New Zealand.
| | - Anthony B Pita
- Molecular Epidemiology and Public Health Laboratory, Hopkirk Research Institute, Massey University, Private Bag 11-222, Palmerston North, New Zealand
| | - Niluka Velathanthiri
- Molecular Epidemiology and Public Health Laboratory, Hopkirk Research Institute, Massey University, Private Bag 11-222, Palmerston North, New Zealand
| | - An Pas
- Auckland Zoo, Motions Rd, 1022, Auckland, New Zealand
| | - David T S Hayman
- Molecular Epidemiology and Public Health Laboratory, Hopkirk Research Institute, Massey University, Private Bag 11-222, Palmerston North, New Zealand
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12
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Abou Elez RMM, Attia ASA, Tolba HMN, Anter RGA, Elsohaby I. Molecular identification and antiprotozoal activity of silver nanoparticles on viability of Cryptosporidium parvum isolated from pigeons, pigeon fanciers and water. Sci Rep 2023; 13:3109. [PMID: 36813872 PMCID: PMC9946930 DOI: 10.1038/s41598-023-30270-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
Cryptosporidium is a protozoan that causes acute gastroenteritis, abdominal pain, and diarrhea in many vertebrate species, including humans, animals and birds. A number of studies have reported the occurrence of Cryptosporidium in domestic pigeons. Thus, this study aimed to identify Cryptosporidium spp. in samples collected from domestic pigeons, pigeon fanciers, and drinking water, as well as to investigate the antiprotozoal activity of biosynthesized silver nanoparticles (AgNPs) on the viability of isolated Cryptosporidium parvum (C. parvum). Samples were collected from domestic pigeons (n = 150), pigeon fanciers (n = 50), and drinking water (n = 50) and examined for the presence of Cryptosporidium spp. using microscopic and molecular techniques. The antiprotozoal activity of AgNPs was then assessed both in vitro and in vivo. Cryptosporidium spp. was identified in 16.4% of all examined samples, with C. parvum identified in 5.6%. The highest frequency of isolation was from domestic pigeon, rather than from pigeon fanciers or drinking water. In domestic pigeons, there was a significant association between Cryptosporidium spp. positivity and pigeon's age, droppings consistency, housing, hygienic and heath conditions. However, Cryptosporidium spp. positivity was only significantly associated with pigeon fanciers' gender and heath condition. The viability of C. parvum oocysts was reduced using AgNPs at various concentrations and storage times in a descending manner. In an in vitro study, the highest reduction in C. parvum count was observed at the AgNPs concentration of 1000 µg/mL after a 24 h contact time, followed by the AgNPs concentration of 500 µg/mL after a 24 h contact time. However, after a 48 h contact time, a complete reduction was observed at both 1000 and 500 µg/mL concentrations. Overall, the count and viability of C. parvum decreased with increasing the AgNPs concentration and contact times in both the in vitro and in vivo studies. Furthermore, the C. parvum oocyst destruction was time-dependent and increased with increasing the contact time at various AgNPs concentrations.
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Affiliation(s)
- Rasha M. M. Abou Elez
- grid.31451.320000 0001 2158 2757Department of Zoonoses, Faculty of Veterinary Medicine, Zagazig University, Zagazig City, Sharkia 44511 Egypt
| | - Amira S. A. Attia
- grid.31451.320000 0001 2158 2757Department of Veterinary Public Health, Faculty of Veterinary Medicine, Zagazig University, Zagazig City, Sharkia 44511 Egypt
| | - Hala M. N. Tolba
- grid.31451.320000 0001 2158 2757Department of Avian and Rabbit Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig City, Sharkia 44511 Egypt
| | - Reham G. A. Anter
- grid.31451.320000 0001 2158 2757Department of Parasitology, Faculty of Veterinary Medicine, Zagazig University, Zagazig City, Sharkia 44511 Egypt
| | - Ibrahim Elsohaby
- grid.31451.320000 0001 2158 2757Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig City, Sharkia 44511 Egypt ,grid.35030.350000 0004 1792 6846Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, Kowloon Tong China ,grid.35030.350000 0004 1792 6846Centre for Applied One Health Research and Policy Advice (OHRP), City University of Hong Kong, Hong Kong SAR, Kowloon Tong China
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13
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Detection of unusual Cryptosporidium parvum subtype in patients with gastrointestinal cancer in Egypt. Parasitol Res 2023; 122:597-606. [PMID: 36539638 DOI: 10.1007/s00436-022-07761-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022]
Abstract
While the importance of cryptosporidiosis in immunocompromised persons is well known, the prevalence of Cryptosporidium spp. in cancer patients is not clear. The current study was designed to assess the occurrence and genetic characteristics of Cryptosporidium spp. in patients with gastrointestinal (GI) cancer in Egypt. Stool samples were collected from 100 patients with GI malignancies and 20 healthy individuals without any GI manifestations (control group). They were screened by microscopy and the immunochromatographic RIDA®QUICK Cryptosporidium kit. Subtyping of Cryptosporidium spp. was conducted by sequence analysis of the glycoprotein 60 (gp60) locus. Sociodemographic, environmental data and information on GI symptoms, cancer types, and clinical treatment were obtained via a questionnaire. By microscopy and RIDA®QUICK, only 7% (7/100) of GI cancer patients were positive for Cryptosporidium, compared with 40% (40/100) by gp60 nPCR. No positives were obtained from the control group. Male sex (P = 0.02) and younger age (P = 0.004) were major Cryptosporidium risk factors for infection. The occurrence of Cryptosporidium was also significantly more frequent (P = 0.003) in watery stool samples. Sequence analysis of the gp60 amplicons (~ 400 bp) identified a novel C. parvum subtype with nine TCA repeats and eleven ACATCA repeats. A formal subtype designation could not be made due to the short sequence length. More studies should be conducted to verify the common occurrence of this unusual C. parvum subtype and establish its genetic identity.
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Suarez P, Alonso JL, Gómez G, Vidal G. Performance of sewage treatment technologies for the removal of Cryptosporidium sp. and Giardia sp.: Toward water circularity. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 324:116320. [PMID: 36183529 DOI: 10.1016/j.jenvman.2022.116320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/31/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Cryptosporidium sp. and Giardia sp. are parasites that cause diseases in the population. Most of parasite diseases regarding the consumption of drinking water polluted with sewage are caused by Cryptosporidium sp. or Giardia sp. it is because of the incomplete disinfection of the wastewater treatment. Therefore, in this work the removal or inactivation efficiency of different treatment technologies presented by around 40 scientific studies was evaluated, with a view to water circularity. For Cryptosporidium sp., we conclude that the most efficient secondary technologies are aerobic technologies, which remove between 0.00 and 2.17 log units (Ulog), with activated sludge presenting the greatest efficiency, and that the tertiary technologies with the greatest removal are those that use ultrasound, which reach removal values of 3.17 Ulog. In the case of Giardia sp., the secondary technologies with the greatest removal are anaerobic technologies, with values between 0.00 and 3.80 Ulog, and the tertiary technologies with the greatest removal are those that combine filtration with UV or a chemical disinfection agent. Despite the removal values obtained, the greatest concern remains detecting and quantifying the infectious forms of both parasites in effluents; therefore, although the technologies perform adequately, discharge effluents must be monitored with more sensitive techniques, above all aiming for circularity of the treated water in a context of the water scarcity that affects some parts of the world.
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Affiliation(s)
- Pilar Suarez
- Environmental Engineering & Biotechnology Group (GIBA-UDEC), Environmental Science Faculty, Universidad de Concepción, Concepción, 4070386, Chile
| | - José Luis Alonso
- Instituto de Ingeniería del Agua y Medio Ambiente, Universitat Politècnica de València, Camino de Vera 14, P.O. Box 46022, Valencia, Spain
| | - Gloria Gómez
- Environmental Engineering & Biotechnology Group (GIBA-UDEC), Environmental Science Faculty, Universidad de Concepción, Concepción, 4070386, Chile
| | - Gladys Vidal
- Environmental Engineering & Biotechnology Group (GIBA-UDEC), Environmental Science Faculty, Universidad de Concepción, Concepción, 4070386, Chile.
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15
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Cryptosporidiosis: From Prevention to Treatment, a Narrative Review. Microorganisms 2022; 10:microorganisms10122456. [PMID: 36557709 PMCID: PMC9782356 DOI: 10.3390/microorganisms10122456] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/02/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022] Open
Abstract
Cryptosporidiosis is a water- and food-borne zoonotic disease caused by the protozoon parasite of the genus Cryptosporidium. C. hominis and C. parvum are the main two species causing infections in humans and animals. The disease can be transmitted by the fecal-oral route as well as the respiratory route. The infective stage (sporulated oocysts) is resistant to different disinfectants including chlorine. Currently, no effective therapeutic drugs or vaccines are available to treat and control Cryptosporidium infection. To prevent cryptosporidiosis in humans and animals, we need to understand better how the disease is spread and transmitted, and how to interrupt its transmission cycle. This review focuses on understanding cryptosporidiosis, including its infective stage, pathogenesis, life cycle, genomics, epidemiology, previous outbreaks, source of the infection, transmission dynamics, host spectrum, risk factors and high-risk groups, the disease in animals and humans, diagnosis, treatment and control, and the prospect of an effective anti-Cryptosporidium vaccine. It also focuses on the role of the One Health approach in managing cryptosporidiosis at the animal-human-environmental interface. The summarized data in this review will help to tackle future Cryptosporidium infections in humans and animals and reduce the disease occurrence.
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16
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Zeng Y, Xiong Y, Yang C, He N, He J, Luo W, Chen Y, Zeng X, Wu Z. Investigation of Parasitic Infection in Crocodile Lizards ( Shinisaurus crocodilurus) Using High-Throughput Sequencing. Animals (Basel) 2022; 12:ani12202726. [PMID: 36290112 PMCID: PMC9597849 DOI: 10.3390/ani12202726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/03/2022] [Accepted: 10/04/2022] [Indexed: 11/16/2022] Open
Abstract
The highly endangered crocodile lizard (Shinisaurus crocodilurus) continues to be impacted by disease, especially in captive breeding populations. In this paper, based on high-throughput sequencing, we investigated parasitic infections in captive and wild crocodile lizard populations in the Daguishan National Nature Reserve and Guangdong Luokeng Shinisaurus crocodilurus National Nature Reserve. The results show that the overall parasitic infection rate in crocodile lizards was 33.33% (23/69). Four parasite genera were detected, including Eimeria, Cryptosporidium, Nematopsis, and Acanthamoeba, with infection rates of 15.94% (11/69), 17.39% (12/69), 7.25% (5/69), and 4.35% (3/69), respectively. Significant differences in the infection rate were found between the different parasite species (χ2 = 8.54, p < 0.05, chi-squared test). The parasitic infection rates in the captive and wild populations were 39.29% (22/56) and 7.69% (1/13), respectively, which were significantly different (p < 0.05, Fisher’s exact test). However, no significant differences in the infection rates of the four parasite genera were found between the captive and wild populations (p > 0.05, Fisher’s exact test). The parasitic infection rates in Daguishan and Luokeng were 34.09% (15/44) and 32.00% (8/25), respectively, which were not significantly different (p > 0.05, Fisher’s exact test). However, significant differences in terms of species were found in the two reserves (p < 0.01, Fisher’s exact test). Only Cryptosporidium infection showed a significant difference between the two regions (p < 0.01, Fisher’s exact test). Our results suggest that captive crocodile lizards are more susceptible to parasitic diseases than wild crocodile lizards and that Cryptosporidium infection varies by geographical region. This study provides basic information about the parasites of endangered crocodile lizards, as well as a reference for disease control and conservation.
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Affiliation(s)
- Yongru Zeng
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin 541004, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541004, China
| | - Yi Xiong
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin 541004, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541004, China
| | - Chunsheng Yang
- Daguishan National Nature Reserve for Crocodile Lizards, Hezhou 542824, China
| | - Nan He
- Guangdong Luokeng Shinisaurus crocodilurus National Nature Reserve, Shaoguan 512100, China
| | - Jiasong He
- Daguishan National Nature Reserve for Crocodile Lizards, Hezhou 542824, China
| | - Wenxian Luo
- Daguishan National Nature Reserve for Crocodile Lizards, Hezhou 542824, China
| | - Yaohuan Chen
- Daguishan National Nature Reserve for Crocodile Lizards, Hezhou 542824, China
| | - Xiaochen Zeng
- Daguishan National Nature Reserve for Crocodile Lizards, Hezhou 542824, China
| | - Zhengjun Wu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin 541004, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, College of Life Science, Guangxi Normal University, Guilin 541004, China
- Correspondence: ; Tel.: +86-135-1783-6091
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Huang MHJ, Demarais S, Brookshire WC, Strickland BK. Analysis of supplemental wildlife feeding in Mississippi and environmental gastrointestinal parasite load. Front Vet Sci 2022; 9:995437. [PMID: 36225801 PMCID: PMC9550164 DOI: 10.3389/fvets.2022.995437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
Wildlife species are host to a variety of gastrointestinal parasites (GIPs). Artificially concentrating animals may increase the risk of disease spread due to increased GIP load and associated environmental load. Supplemental feeding of deer is common among hunters and known to concentrate animals, but there is limited knowledge of how it affects GIP environmental load. GIP load was compared between ecologically-equivalent pairs of sites in Mississippi with and without year-round supplemental feeding (average distance between pairs = 147 m). During May-August in 2019 and 2020, feces from white-tailed deer and raccoons were collected and examined for the presence of nematodes, coccidia, Giardia spp., Cryptosporidium spp., and Baylisascaris procyonis. On average, fed sites had 8 more deer (241% increase) and 2 more raccoon fecal piles (540% increase) than unfed sites. Average parasite loads for individual fecal samples did not differ between fed and unfed sites, but the greater number of deer and raccoon fecal piles at fed sites (p < 0.0001) produced 231% and 308% greater environmental loads of nematodes and coccidia, respectively. Spin feeders, the only feeder type that distributed feed on the ground, had 326% more coccidia in feces on average compared to other feeder types (p < 0.03). These results show that supplemental feeding of white-tailed deer, especially with spin feeders, increases environmental loads of GIP and the potential for transmission of parasitic diseases.
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Affiliation(s)
- Miranda H. J. Huang
- Department of Wildlife, Fisheries and Aquaculture, Mississippi State University, Mississippi State, MS, United States
- *Correspondence: Miranda H. J. Huang
| | - Steve Demarais
- Department of Wildlife, Fisheries and Aquaculture, Mississippi State University, Mississippi State, MS, United States
| | - W. Cooper Brookshire
- Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, United States
| | - Bronson K. Strickland
- Department of Wildlife, Fisheries and Aquaculture, Mississippi State University, Mississippi State, MS, United States
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18
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Diverse Genotypes of Cryptosporidium in Sheep in California, USA. Pathogens 2022; 11:pathogens11091023. [PMID: 36145455 PMCID: PMC9504958 DOI: 10.3390/pathogens11091023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/03/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022] Open
Abstract
Cryptosporidium spp. is a parasite that can infect a wide variety of vertebrate species. The parasite has been detected in sheep worldwide with diverse species and genotypes of various levels of zoonotic potential and public health concern. The purpose of this study was to determine the distribution of genotypes of Cryptosporidium in sheep in California, USA. Microscopic positive samples from individual sheep from central and northern California ranches were genotyped by sequencing a fragment of the 18S rRNA gene and BLAST analysis. Eighty-eight (63.8%) of the microscopic positive samples were genotyped, and multiple genotypes of Cryptosporidium were identified from sheep in the enrolled ranches. Approximately 89% of isolates (n = 78) were C. xiaoi or C. bovis, 10% of isolates (n = 9) were C. ubiquitum, and 1% of isolates (n = 1) were C. parvum. The C. parvum and C. ubiquitum isolates were detected only from lambs and limited to four farms. Given that the majority of Cryptosporidium species (i.e., C. xiaoi and C. bovis) were of minor zoonotic concern, the results of this study suggest that sheep are not a reservoir of major zoonotic Cryptosporidium in California ranches.
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Masangkay FR, Milanez GD, Dionisio JD, Ormita LAGL, Alvarez AV, Karanis P. Well water sources simultaneous contamination with Cryptosporidium and Acanthamoeba in East-Southeast Asia and Acanthamoeba spp. in biofilms in the Philippines. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 837:155752. [PMID: 35533862 DOI: 10.1016/j.scitotenv.2022.155752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/05/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
Cryptosporidium is the leading agent of waterborne parasitic protozoan outbreaks and is the second leading cause of infant mortality due to diarrhoea worldwide. Acanthamoeba spp. causes Acanthamoeba keratitis (AK) and a life-threatening condition known as granulomatous amoebic encephalitis (GAE). The present study aimed to assess the water quality of an indigenous and a rural community for waterborne parasitic protozoan contamination. Aquatic samples (n = 22) were processed by filtration of 500 mL portion through a 1.2 μm pore size glass microfiber filter and eluted for light microscopy, culture in non-nutrient agar, and PCR analysis. Overall, 36% (8/22) of the investigated aquatic samples were positive for either Cryptosporidium spp. oocysts (13%; 3/22) or Acanthamoeba spp., (36%; 8/22) or both (13%; 3/22). Cryptosporidium spp. oocysts were detected in 27% (3/11) of wet season samples only while Acanthamoeba spp. were detected in 18% (2/11) and 55% (6/11) of wet and dry season samples, respectively. Subsequently, molecular detection for Acanthamoeba species identified A. lenticulata and A. hatchetti with 98-99% BLAST similarity. This is the first report on the simultaneous contamination of Cryptosporidium and Acanthamoeba in well water sources in East-Southeast Asia, the first detection of Acanthamoeba spp. in biofilms in the Philippines, and the longest viability demonstrated for A. lenticulata in two-year-old water samples stored at room temperature.
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Affiliation(s)
- Frederick R Masangkay
- Department of Medical Technology, Faculty of Pharmacy, University of Santo Tomas, Manila 1008, Philippines.
| | - Giovanni D Milanez
- Department of Medical Technology, Faculty of Pharmacy, University of Santo Tomas, Manila 1008, Philippines
| | - Joseph D Dionisio
- Department of Medical Technology, Far Eastern University-Manila, Manila 1015, Philippines
| | - Luzelle Anne G-L Ormita
- Department of Psychology, Far Eastern University-Manila, Manila 1015, Philippines; Community Extension Services, Far Eastern University-Manila, Manila 1015, Philippines
| | - Abel V Alvarez
- Community Extension Services, Far Eastern University-Manila, Manila 1015, Philippines
| | - Panagiotis Karanis
- University of Cologne, Faculty of Medical and University Hospital Cologne, Cologne 50923, Germany; Medical School, Department of Basic and Clinical Science, University of Nicosia, Nicosia, 2417, Cyprus.
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Ryan U, Hill K, Deere D. Review of generic screening level assumptions for quantitative microbial risk assessment (QMRA) for estimating public health risks from Australian drinking water sources contaminated with Cryptosporidium by recreational activities. WATER RESEARCH 2022; 220:118659. [PMID: 35635918 DOI: 10.1016/j.watres.2022.118659] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 04/26/2022] [Accepted: 05/21/2022] [Indexed: 06/15/2023]
Abstract
As urban communities continue to grow, demand for recreational access (including swimming) in drinking water sources have increased, yet relatively little is understood about the public health implications this poses for drinking water consumers. Preventative risk-based approaches to catchment management, informed by quantitative microbial risk assessment (QMRA), requires accurate input data to effectively model risks. A sound understanding of the knowledge gaps is also important to comprehend levels of uncertainty and help prioritise research needs. Cryptosporidium is one of the most important causes of waterborne outbreaks of gastroenteritis globally due to its resistance to chlorine. This review was undertaken by Water Research Australia to provide the most up-to-date information on current Cryptosporidium epidemiological data and underlying assumptions for exposure assessment, dose response and risk assessment for generic components of QMRA for Cryptosporidium and highlights priorities for common research. Key interim recommendations and guidelines for numerical values for relatively simple screening level QMRA modelling are provided to help support prospective studies of risks to drinking water consumers from Cryptosporidium due to body-contact recreation in source water. The review does not cover site-specific considerations, such as the levels of activity in the source water, the influence of dilution and inactivation in reservoirs, or water treatment. Although the focus is Australia, the recommendations and numerical values developed in this review, and the highlighted research priorities, are broadly applicable across all drinking source water sources that allow recreational activities.
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Affiliation(s)
- U Ryan
- Harry Butler Institute, Murdoch University, 90 South Street, Perth, Australia.
| | - Kelly Hill
- Water Research Australia, 250 Victoria Square, Adelaide, South Australia, Australia
| | - Dan Deere
- Water Futures, Sydney, Australia and Water Research Australia, Australia
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21
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Tober AV, Govender D, Russo IRM, Cable J. The microscopic five of the big five: Managing zoonotic diseases within and beyond African wildlife protected areas. ADVANCES IN PARASITOLOGY 2022; 117:1-46. [PMID: 35878948 DOI: 10.1016/bs.apar.2022.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
African protected areas strive to conserve the continent's great biodiversity with a targeted focus on the flagship 'Big Five' megafauna. Though often not considered, this biodiversity protection also extends to the lesser-known microbes and parasites that are maintained in these diverse ecosystems, often in a silent and endemically stable state. Climate and anthropogenic change, and associated diversity loss, however, are altering these dynamics leading to shifts in ecological interactions and pathogen spill over into new niches and hosts. As many African protected areas are bordered by game and livestock farms, as well as villages, they provide an ideal study system to assess infection dynamics at the human-livestock-wildlife interface. Here we review five zoonotic, multi-host diseases (bovine tuberculosis, brucellosis, Rift Valley fever, schistosomiasis and cryptosporidiosis)-the 'Microscopic Five'-and discuss the biotic and abiotic drivers of parasite transmission using the iconic Kruger National Park, South Africa, as a case study. We identify knowledge gaps regarding the impact of the 'Microscopic Five' on wildlife within parks and highlight the need for more empirical data, particularly for neglected (schistosomiasis) and newly emerging (cryptosporidiosis) diseases, as well as zoonotic disease risk from the rising bush meat trade and game farm industry. As protected areas strive to become further embedded in the socio-economic systems that surround them, providing benefits to local communities, One Health approaches can help maintain the ecological integrity of ecosystems, while protecting local communities and economies from the negative impacts of disease.
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Affiliation(s)
- Anya V Tober
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom.
| | - Danny Govender
- SANParks, Scientific Services, Savanna and Grassland Research Unit, Pretoria, South Africa; Department of Paraclinical Sciences, University of Pretoria, Onderstepoort, South Africa
| | - Isa-Rita M Russo
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
| | - Jo Cable
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
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22
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Pane S, Putignani L. Cryptosporidium: Still Open Scenarios. Pathogens 2022; 11:pathogens11050515. [PMID: 35631036 PMCID: PMC9143492 DOI: 10.3390/pathogens11050515] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/20/2022] [Accepted: 04/23/2022] [Indexed: 01/27/2023] Open
Abstract
Cryptosporidiosis is increasingly identified as a leading cause of childhood diarrhea and malnutrition in both low-income and high-income countries. The strong impact on public health in epidemic scenarios makes it increasingly essential to identify the sources of infection and understand the transmission routes in order to apply the right prevention or treatment protocols. The objective of this literature review was to present an overview of the current state of human cryptosporidiosis, reviewing risk factors, discussing advances in the drug treatment and epidemiology, and emphasizing the need to identify a government system for reporting diagnosed cases, hitherto undervalued.
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Affiliation(s)
- Stefania Pane
- Department of Diagnostic and Laboratory Medicine, Bambino Gesù Children’s Hospital, IRCCS, Unit of Microbiology and Diagnostic Immunology, Unit of Microbiomics, 00146 Rome, Italy;
| | - Lorenza Putignani
- Department of Diagnostic and Laboratory Medicine, Bambino Gesù Children’s Hospital, IRCCS, Unit of Microbiology and Diagnostic Immunology, Unit of Microbiomics and Multimodal Laboratory Medicine Research Area, Unit of Human Microbiome, 00146 Rome, Italy
- Correspondence:
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Moratal S, Dea-Ayuela MA, Martí-Marco A, Puigcercós S, Marco-Hirs NM, Doménech C, Corcuera E, Cardells J, Lizana V, López-Ramon J. Molecular Characterization of Cryptosporidium spp. in Cultivated and Wild Marine Fishes from Western Mediterranean with the First Detection of Zoonotic Cryptosporidium ubiquitum. Animals (Basel) 2022; 12:1052. [PMID: 35565479 PMCID: PMC9104342 DOI: 10.3390/ani12091052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/16/2022] [Accepted: 04/17/2022] [Indexed: 02/01/2023] Open
Abstract
Fish not only harbor host-specific species/genotypes of Cryptosporidium, but also species like zoonotic C. parvum or anthroponotic C. hominis, which can pose a risk for fish consumers. This study aims to investigate fish cryptosporidiosis in an important aquaculture and fishery area of the Western Mediterranean (Comunidad Valenciana, Spain). We analyzed 404 specimens belonging to the following three groups: cultivated fish (N = 147), wild synanthropic fish (N = 147) and wild fish from extractive fisheries (N = 110). Nested PCR targeting the 18S rRNA gene, followed by sequencing and phylogenetic analysis, were performed. Positive isolates were also amplified at the actin gene locus. An overall prevalence of 4.2% was detected, with the highest prevalence in the synanthropic group (6.1%). C. molnari was identified in thirteen specimens from seven different host species. Zoonotic C. ubiquitum was detected in two European sea bass (Dicentrarchus labrax). One isolate similar to C. scophthalmi was detected in a cultivated meagre (Argyrosomus regius), and one isolate, highly divergent from all the Cryptosporidium species/genotypes described, was identified from a synanthropic round sardinella (Sardinella aurita). This study contributes to increasing the molecular data on fish cryptosporidiosis, expanding the range of known hosts for C. molnari and identifying, for the first time, zoonotic C. ubiquitum in edible marine fishes, pointing out a potential health risk.
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Affiliation(s)
- Samantha Moratal
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
| | - María Auxiliadora Dea-Ayuela
- Pharmacy Department, Universidad CEU-Cardenal Herrera, Santiago Ramón y Cajal Street, Alfara del Patriarca, 46115 Valencia, Spain
| | - Alba Martí-Marco
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
| | - Silvia Puigcercós
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
| | - Naima María Marco-Hirs
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
| | - Candela Doménech
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
| | - Elena Corcuera
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
| | - Jesús Cardells
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
- Wildlife Ecology & Health Group (WE&H), Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), Travessera dels Turons, Bellaterra, 08193 Barcelona, Spain
| | - Victor Lizana
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
- Wildlife Ecology & Health Group (WE&H), Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), Travessera dels Turons, Bellaterra, 08193 Barcelona, Spain
| | - Jordi López-Ramon
- Servicio de Análisis, Investigación y Gestión de Animales Silvestres (SAIGAS), Veterinary Faculty, Universidad CEU-Cardenal Herrera, Tirant lo Blanc Street 7, Alfara del Patriarca, 46115 Valencia, Spain; (S.M.); (A.M.-M.); (S.P.); (N.M.M.-H.); (C.D.); (E.C.); (J.C.); (V.L.); (J.L.-R.)
- Wildlife Ecology & Health Group (WE&H), Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), Travessera dels Turons, Bellaterra, 08193 Barcelona, Spain
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Nakashima FT, Fonseca ABM, Coelho LFDO, Barbosa ADS, Bastos OMP, Uchôa CMA. Cryptosporidium species in non-human animal species in Latin America: Systematic review and meta-analysis. Vet Parasitol Reg Stud Reports 2022; 29:100690. [PMID: 35256118 DOI: 10.1016/j.vprsr.2022.100690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 01/10/2022] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Cryptosporidiosis is an infection caused by a protozoon that inhabits the gastrointestinal tract. More than forty valid species have been described in the genus Cryptosporidium, infecting a broad range of hosts around the world, some with zoonotic transmission and others with predominant anthroponotic transmission. Prevalence studies conducted in Latin American countries have been specific, without consolidating information on species prevalences. Thus, the aim of this study was to perform a systematic review and meta-analysis addressing the prevalence of Cryptosporidium species in animals in Latin America. The estimated pooled prevalence rate for cryptosporidiosis in animals, by means of meta-analysis with a random-effects model, based on species identification, was 18.0% (95% CI 11.0%-27.0%) with high heterogeneity. The estimated overall prevalence was 20.3% (36/177) in pets, 19.9% (1309/6573) in livestock animals and 23.9% (954/3995) in exotic/captive animals. Evidence of circulation of 16 Cryptosporidium species was found in five Latin American countries: Brazil, Colombia, Chile, Argentina and Mexico. Through meta-analysis with a random-effects model, the pooled prevalence rate for Cryptosporidium parvum was 0.7% (95% CI 0.2%-2.4%). Cryptosporidium felis (8.5%) was the most prevalent species in pets, C. parvum (10.3%) in livestock animals and Cryptosporidium galli (17.6%) in exotic/captive animals. C. parvum was the species with the greatest geographical dispersion, which can be explained by its eurixenic and zoonotic potential. Few studies on cryptosporidiosis in animals in Latin America were found, which shows that there is a need for investment in and expansion of studies on this parasite. The pooled prevalence of C. parvum in Latin America and its wide circulation are similar to what has been observed in other developing regions, which reaffirms the importance of this species as the cause of a neglected, emerging and zoonotic parasitosis.
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Affiliation(s)
- Flávia Terumi Nakashima
- Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Rua Professor Hernani Pires de Melo 101, Centro, Niterói, RJ 24210-130, Brazil.
| | - Ana Beatriz Monteiro Fonseca
- Department of Statistics, Institute of Mathematics and Statistics, Fluminense Federal University, Rua Professor Marcos Waldemar de Freitas Reis s/n, Blocos G e H, Campus do Gragoatá, São Domingos, Niterói, RJ 24210-201, Brazil
| | - Luiz Fernando de Oliveira Coelho
- Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Rua Professor Hernani Pires de Melo 101, Centro, Niterói, RJ 24210-130, Brazil
| | - Alynne da Silva Barbosa
- Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Rua Professor Hernani Pires de Melo 101, Centro, Niterói, RJ 24210-130, Brazil
| | - Otilio Machado Pereira Bastos
- Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Rua Professor Hernani Pires de Melo 101, Centro, Niterói, RJ 24210-130, Brazil
| | - Claudia Maria Antunes Uchôa
- Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Rua Professor Hernani Pires de Melo 101, Centro, Niterói, RJ 24210-130, Brazil.
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25
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Liao C, Wang T, Koehler AV, Hu M, Gasser RB. Cryptosporidium of birds in pet markets in Wuhan city, Hubei, China. CURRENT RESEARCH IN PARASITOLOGY & VECTOR-BORNE DISEASES 2022; 1:100025. [PMID: 35284902 PMCID: PMC8906122 DOI: 10.1016/j.crpvbd.2021.100025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 12/27/2022]
Abstract
Cryptosporidium is a group of protistan parasites of a range of vertebrates including mammals and birds. Stimulated by previous work that revealed “zoonotic” Cryptosporidium meleagridis subtypes (i.e. IIIbA26G1R1b and IIIbA22G1R1c) in diarrhoeic children and domestic chickens in Wuhan city and environs in Hubei Province, China, here we explored whether zoonotic C. meleagridis subtypes might also occur in pet birds in Wuhan city. From 11 bird markets in this city, we collected 322 faecal samples from 48 species of birds (representing six taxonomic orders), isolated genomic DNA and then conducted PCR-based sequencing of genetic markers in the small subunit (SSU) of the nuclear ribosomal RNA and the 60 kDa glycoprotein (gp60) genes of Cryptosporidium. Using SSU, Cryptosporidium was detected in 55 (17%) of the 322 samples. Cryptosporidium avium, C. baileyi, C. meleagridis, C. muris and C. proventriculi were characterised in 18%, 47%, 11%, 2% and 20% of the 55 samples, respectively, and a novel Cryptosporidium galli-like taxon in one sample. Using gp60, only one subtype (IIIeA17G2R1) of C. meleagridis was identified, which had not been detected in a previous study of diarrhoeic children in Wuhan. However, IIIe subtypes have been found in both humans and birds around the world. The relatively high prevalence and genetic diversity of Cryptosporidium recorded here in pet birds raise awareness about possible reservoirs of zoonotic variants of Cryptosporidium in birds in Wuhan, and potentially, other provinces in China. A total of 322 faecal samples from 48 species of pet birds were tested for Cryptosporidium. Relatively high prevalence and genetic diversity of Cryptosporidium were found. A novel Cryptosporidium galli-like genotype was recorded. A Cryptosporidium meleagridis subtype with zoonotic potential was detected.
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Affiliation(s)
- Cong Liao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Tao Wang
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, Victoria, Australia
| | - Anson V Koehler
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, Victoria, Australia
| | - Min Hu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Robin B Gasser
- Department of Veterinary Biosciences, Melbourne Veterinary School, The University of Melbourne, Parkville, Victoria, Australia
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26
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Essendi WM, Muleke C, Miheso M, Otachi E. Genetic diversity of Cryptosporidium species in Njoro Sub County, Nakuru, Kenya. J Parasit Dis 2022; 46:262-271. [PMID: 35299918 PMCID: PMC8901856 DOI: 10.1007/s12639-021-01444-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 08/21/2021] [Indexed: 11/24/2022] Open
Abstract
Cryptosporidium spp. cause cryptosporidiosis in humans through zoonotic and anthroponotic transmission. Previous studies illustrated the significance of domestic animals as reservoirs of this parasite. Cryptosporidium occurs in Njoro River; a main source of water to humans and animals. However, there is no information on the Cryptosporidium spp. and genotypes circulating in Njoro Sub County. A total of 2174 samples from humans, cattle, chickens, sheep and goats were assessed for the presence of Cryptosporidium spp. Thirty-three positive samples were subsequently successfully sequenced and compared to Cryptosporidium sequences in the GenBank repository using NCBI's (National Center for Biotechnology Information) online BLAST (Basic Local Alignment Search Tool) algorithmic program. Sequence alignment was done using the Clustal W program and phylogenetic analysis was executed in MEGA X (Molecular Evolutionary Genetics Analysis version X). The prevalence of cryptosporidiosis in Njoro Sub County is 6.99%. Cryptosporidium spp. present in the watershed showed great genetic diversity and nine Cryptosporidium species were recorded: Cryptosporidium parvum, Cryptosporidium hominis, Cryptosporidium ubiquitum, Cryptosporidium meleagridis, Cryptosporidium andersoni, Cryptosporidium baileyi, Cryptosporidium muris, Cryptosporidium xiaoi and Cryptosporidium viatorum. This is the first study to report the presence of C. viatorum in Kenya. Cattle is the major reservoir of zoonotic Cryptosporidium spp. while goats harbored the lowest number of species. Humans and domestic animals drink the contaminated water from Njoro River, humans are therefore, exposed to a high cryptosporidiosis risk.
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Affiliation(s)
| | - Charles Muleke
- Department of Biological Sciences, Egerton University, P.O. Box 536-20115, Egerton, Kenya
| | - Manfred Miheso
- Kenya Agricultural and Livestock Research Organization, Food Crops Research Centre Njoro, Njoro, Kenya
| | - Elick Otachi
- Department of Biological Sciences, Egerton University, P.O. Box 536-20115, Egerton, Kenya
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Hancke D, Suárez OV. A review of the diversity of Cryptosporidium in Rattus norvegicus, R. rattus and Mus musculus: What we know and challenges for the future. Acta Trop 2022; 226:106244. [PMID: 34863707 DOI: 10.1016/j.actatropica.2021.106244] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 11/18/2022]
Abstract
The aim of this paper is to review the diversity of Cryptosporidium species and genotypes infecting synantropic rodents. A total of 27 papers published between 1990 and 2020 assed the presence of Cryptosporidium in these rodents worldwide and described 17 different species and genotypes of Cryptosporidium. A great variation in the prevalence values were observed (0-63%). The most frequent species/genotypes were Rat genotype I and IV for R. norvegicus and Rat genotype II and III R. rattus, while C. tyzzeri was for M. musculus. Cryptosporidium parvum, the second most common species after C. hominis involved in human cryptosporidiosis cases, was the third most detected Cryptosporidium species in R, norvergicus (9.4% of the positive samples) and the 3 rodent species are common host for C. muris, also recognized as zoonotic. Besides, these synanthopic rodents can harbor Cryptosporidium species whose natural hosts are cattle, bovids, pigs, other rodent species, birds and a broad range of mammals. Considering the diversity described so far, it would have a great epidemiological impact to know how the variation of Cryptosporidium species composition along urban-rural gradients is like, including synanthropic rodents, wild and domestic animals and environmental samples, and to analyze the causal factors of such variation.
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Affiliation(s)
- Diego Hancke
- Laboratorio de Ecología de Roedores, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Ciudad Autónoma de Buenos Aires, Ciudad Universitaria, Avenida Intendente Cantilo s/n, Pabellón II, 4° PisoLaboratorio 104 (C1428EHA), Buenos Aires, Argentina; Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA), UBA-CONICET, C1428EHA Ciudad Autónoma de Buenos Aires, Ciudad Universitaria, Intendente Güiraldes 2160, PB II, 4to piso, Argentina.
| | - Olga Virginia Suárez
- Laboratorio de Ecología de Roedores, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Ciudad Autónoma de Buenos Aires, Ciudad Universitaria, Avenida Intendente Cantilo s/n, Pabellón II, 4° PisoLaboratorio 104 (C1428EHA), Buenos Aires, Argentina; Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA), UBA-CONICET, C1428EHA Ciudad Autónoma de Buenos Aires, Ciudad Universitaria, Intendente Güiraldes 2160, PB II, 4to piso, Argentina
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Kifleyohannes T, Nødtvedt A, Debenham JJ, Terefe G, Robertson LJ. Cryptosporidium and Giardia in Livestock in Tigray, Northern Ethiopia and Associated Risk Factors for Infection: A Cross-Sectional Study. Front Vet Sci 2022; 8:825940. [PMID: 35097057 PMCID: PMC8795829 DOI: 10.3389/fvets.2021.825940] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/21/2021] [Indexed: 12/13/2022] Open
Abstract
The occurrence and species/genotypes of Cryptosporidium and Giardia duodenalis infecting young livestock in selected districts of Tigray, Ethiopia were investigated, along with risks associated with infection. A total of 757 faecal samples were collected from calves, lambs, and goat kids from four rural districts in Tigray, and also from calves in periurban Mekelle, Tigray's main city, and analysed for Cryptosporidium oocysts and Giardia cysts. Farmers answered questionnaires regarding potential risk factors at sample collection. Immunofluorescent antibody staining was used for parasite detection, and PCR at selected genes and sequencing of positive samples was used for molecular characterisation. The occurrence of Cryptosporidium infection was 10, 9, and 4% in calves, lambs, and goat kids, respectively; equivalent figures for Giardia infection were 39, 32, and 21%. Molecular characterisation of Cryptosporidium isolates revealed C. ubiquitum, subtype XIIa in all three host species; C. ryanae in calves and goat kids; C. andersoni and C. bovis were identified only in calves, and C. xiaoi was identified in lambs. For Giardia, Assemblage E predominated in all host species, but among calf isolates we also identified a few potentially zoonotic genotypes (assemblages A (AI) and Assemblage B). Periparturient care was shown to be a particularly relevant risk factor for infection, and infections were less likely to occur under extensive management systems. Our major findings were widespread occurrence of both parasites in livestock, and the apparent lack of the most common zoonotic species. Our results are discussed in relation to other relevant studies. As our study was conducted in Tigray, further investigation in different settings in Ethiopia could provide relevant information on transmission and zoonotic potential. In addition, given the dependency on healthy animals for the livelihoods of the population of Tigray, investigation of the effect of these common parasites on livestock productivity is important.
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29
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Zhang K, Fu Y, Li J, Zhang L. Public health and ecological significance of rodents in Cryptosporidium infections. One Health 2022; 14:100364. [PMID: 34984218 PMCID: PMC8692995 DOI: 10.1016/j.onehlt.2021.100364] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/10/2021] [Accepted: 12/14/2021] [Indexed: 11/17/2022] Open
Abstract
Cryptosporidium is one of the most important genera of intestinal zoonotic pathogens that cause diarrhea in both humans and animals. Rodents are common and important hosts or carriers of pathogens with public health importance, and rodents play an important role in the ecology of zoonotic transmission. The overall worldwide prevalence of Cryptosporidium spp. in rodents is 19.8% (4589/23142). Twenty-five known Cryptosporidium species and 43 genotypes have been identified, and C. parvum is the dominant species in rodents worldwide. Rodents transfer pathogens to humans by the direct route or by serving as intermediate hosts transmitting the pathogens to other animals. We review the epidemiology, diversity, and transmission routes of Cryptosporidium spp. in rodents. The main purpose of this review is to highlight Cryptosporidium infection in rodents and its transmission, associated risk factors, and prevention; in addition, we assess the public health and ecological significance of Cryptosporidium infections from the One Health perspective. Review of the epidemiology and diversity of Cryptosporidium in rodents. The overall worldwide prevalence is 19.8% (4589/23142), C. parvum is the dominant species. Public health and ecological significance of rodent-borne Cryptosporidium at “One Health” perspective.
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Affiliation(s)
- Kaihui Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, PR China.,International Joint Research Center for Animal Immunology of China, Zhengzhou, Henan, PR China
| | - Yin Fu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, PR China.,International Joint Research Center for Animal Immunology of China, Zhengzhou, Henan, PR China
| | - Junqiang Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, PR China.,International Joint Research Center for Animal Immunology of China, Zhengzhou, Henan, PR China
| | - Longxian Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, PR China.,International Joint Research Center for Animal Immunology of China, Zhengzhou, Henan, PR China
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Ribeiro DSC, Martins AV, Lobão LF, Ribeiro MS, Palmer JPS, Corrêa LL, Uchôa CMA, da Silva S, Meireles MV, Amendoeira MRR, Barbosa ADS. Diagnosis, risk factors analysis and first molecular characterization of Cryptosporidium spp. in horses from Rio de Janeiro, Brazil. Vet Parasitol Reg Stud Reports 2022; 27:100665. [PMID: 35012721 DOI: 10.1016/j.vprsr.2021.100665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 11/08/2021] [Accepted: 11/15/2021] [Indexed: 06/14/2023]
Abstract
An analysis was made of the frequency of Cryptosporidium spp. in fecal samples from horses raised on farms in the Teresópolis city, state of Rio de Janeiro, Brazil, and the risk factors that favored this infection. Between 2019 and 2020, 314 samples of equine feces were collected, 287 of which came from English Thoroughbred horses and 27 from ponies. Information on the horses and their management were retrieved from a stud book and forms filled out by trainers. The fecal samples were subjected to macroscopic analysis, modified Sheather's and Lutz parasitological techniques, safranin staining, and to enzyme-linked immunosorbent assay (ELISA) for the detection of coproantigens. All the samples that tested positive by these techniques underwent partial sequence analysis of the 18S rRNA gene to characterize the protozoan species. Cryptosporidium spp. was identified in 35 (11.1%) of the samples, 34 from English Thoroughbred horses and one from a pony. Based on a logistic regression model, it was found that the presence of dogs and small ruminants on the farms, and drinking water from a spring, were significantly associated with the animals' infection by the protozoan (p < 0.05). Eight of the English Thoroughbred horse samples underwent molecular characterization, which revealed the presence of Cryptosporidium felis in one sample and Cryptosporidium parvum in seven. The seven samples containing C. parvum were subjected to gp60 gene analysis, based on which nucleotide sequences typical of the IIa family were identified, which are usually transmitted from animals to humans. In addition, the genotype IIaA15G2R1, which is considered to have the highest profile of zoonotic transmissibility, was identified in one Thoroughbred horse. This is the first study conducted in the state of Rio de Janeiro that molecularly characterized Cryptosporidium spp. in horses, and the first on the American continent to detect C. felis in the feces of these animals.
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Affiliation(s)
- Daniella Sother Carvalho Ribeiro
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Rua Hernani de Mello, 101, São Domingos, Niterói, Rio de Janeiro 24210130, Brazil
| | - André Vianna Martins
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Rua Hernani de Mello, 101, São Domingos, Niterói, Rio de Janeiro 24210130, Brazil; Centro Universitário Serra dos Órgãos, Faculdade de Medicina Veterinária, Campus Quinta do Paraíso, Estrada Wenceslau José de Medeiros, 1045, Prata, Teresópolis, Rio de Janeiro, 25976-340, Brazil
| | - Lucas Fernandes Lobão
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Rua Hernani de Mello, 101, São Domingos, Niterói, Rio de Janeiro 24210130, Brazil
| | - Mariana Santos Ribeiro
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Rua Hernani de Mello, 101, São Domingos, Niterói, Rio de Janeiro 24210130, Brazil
| | - João Pedro Siqueira Palmer
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Rua Hernani de Mello, 101, São Domingos, Niterói, Rio de Janeiro 24210130, Brazil
| | - Lais Lisboa Corrêa
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Rua Hernani de Mello, 101, São Domingos, Niterói, Rio de Janeiro 24210130, Brazil
| | - Claudia Maria Antunes Uchôa
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Rua Hernani de Mello, 101, São Domingos, Niterói, Rio de Janeiro 24210130, Brazil
| | - Sidnei da Silva
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, Laboratório de Parasitologia, Avenida Brasil, 4365, Manguinhos, Rio de Janeiro 21045900, Brazil
| | - Marcelo Vasconcelos Meireles
- Universidade Estadual Paulista, Campus Araçatuba, Rua Clóvis Pestana, 793, Bairro Dona Amélia, CEP 16050-680, Araçatuba, SP, Brazil
| | - Maria Regina Reis Amendoeira
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Toxoplasmose e outras Protozoooses, Avenida Brasil, 4365, Manguinhos, Rio de Janeiro 21045900, Brazil
| | - Alynne da Silva Barbosa
- Universidade Federal Fluminense, Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Rua Hernani de Mello, 101, São Domingos, Niterói, Rio de Janeiro 24210130, Brazil; Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Toxoplasmose e outras Protozoooses, Avenida Brasil, 4365, Manguinhos, Rio de Janeiro 21045900, Brazil.
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Cryptosporidium spp. in wild murids (Rodentia) from Corsica, France. Parasitol Res 2021; 121:345-354. [PMID: 34816301 PMCID: PMC8748365 DOI: 10.1007/s00436-021-07369-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 11/01/2021] [Indexed: 11/04/2022]
Abstract
Cryptosporidium spp. are worldwide protozoan parasites that can affect to a broad range of vertebrate hosts, including rodents. In the island of Corsica (France), there are no previous data about these protozoa infecting wild rodents. To estimate the distribution and occurrence, a total of 117 wild murine rodents of the species Rattus rattus (84), Mus musculus domesticus (21), Apodemus sylvaticus (11), and Rattus norvegicus (1) were captured in 24 different biotopes. Fecal samples were screened for Cryptosporidium spp. by nested PCR to amplify an 830 bp fragment of the 18S rRNA gene. As general occurrence, 15.4% of the rodents analyzed were positive for Cryptosporidium spp., being detected widely distributed along the island in R. rattus (17.6%) and M. m. domesticus (14.3%). Cryptosporidium viatorum, Cryptosporidium sp. rat genotype II, and Cryptosporidium sp. rat genotype III were successfully identified in R. rattus. The results herein reported provide the first data on Cryptosporidium spp. in wild murine species from a Mediterranean island and constitute the first report of the zoonotic species C. viatorum in R. rattus. Although a low occurrence of Cryptosporidium spp. in murids was obtained and only in one animal the zoonotic species C. viatorum was identified, our results highlight that wild murine rodents from Corsica could mediate in the maintenance and transmission of this protozoan to the environment and other hosts including humans and animals. Further studies are required to better understand the epidemiology of Cryptosporidium spp. in wild rodents from Corsica and their possible public health repercussions.
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Ryan U, Zahedi A, Feng Y, Xiao L. An Update on Zoonotic Cryptosporidium Species and Genotypes in Humans. Animals (Basel) 2021; 11:3307. [PMID: 34828043 PMCID: PMC8614385 DOI: 10.3390/ani11113307] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/12/2021] [Accepted: 11/16/2021] [Indexed: 12/14/2022] Open
Abstract
The enteric parasite, Cryptosporidium is a major cause of diarrhoeal illness in humans and animals worldwide. No effective therapeutics or vaccines are available and therefore control is dependent on understanding transmission dynamics. The development of molecular detection and typing tools has resulted in the identification of a large number of cryptic species and genotypes and facilitated our understanding of their potential for zoonotic transmission. Of the 44 recognised Cryptosporidium species and >120 genotypes, 19 species, and four genotypes have been reported in humans with C. hominis, C. parvum, C. meleagridis, C. canis and C. felis being the most prevalent. The development of typing tools that are still lacking some zoonotic species and genotypes and more extensive molecular epidemiological studies in countries where the potential for transmission is highest are required to further our understanding of this important zoonotic pathogen. Similarly, whole-genome sequencing (WGS) and amplicon next-generation sequencing (NGS) are important for more accurately tracking transmission and understanding the mechanisms behind host specificity.
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Affiliation(s)
- Una Ryan
- Harry Butler Institute, Murdoch University, Perth, WA 6152, Australia;
| | - Alireza Zahedi
- Harry Butler Institute, Murdoch University, Perth, WA 6152, Australia;
| | - Yaoyu Feng
- Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Y.F.); (L.X.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Lihua Xiao
- Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Y.F.); (L.X.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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Mathison BA, Sapp SGH. An annotated checklist of the eukaryotic parasites of humans, exclusive of fungi and algae. Zookeys 2021; 1069:1-313. [PMID: 34819766 PMCID: PMC8595220 DOI: 10.3897/zookeys.1069.67403] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 08/20/2021] [Indexed: 12/13/2022] Open
Abstract
The classification of "parasites" in the medical field is a challenging notion, a group which historically has included all eukaryotes exclusive of fungi that invade and derive resources from the human host. Since antiquity, humans have been identifying and documenting parasitic infections, and this collective catalog of parasitic agents has expanded considerably with technology. As our understanding of species boundaries and the use of molecular tools has evolved, so has our concept of the taxonomy of human parasites. Consequently, new species have been recognized while others have been relegated to synonyms. On the other hand, the decline of expertise in classical parasitology and limited curricula have led to a loss of awareness of many rarely encountered species. Here, we provide a comprehensive checklist of all reported eukaryotic organisms (excluding fungi and allied taxa) parasitizing humans resulting in 274 genus-group taxa and 848 species-group taxa. For each species, or genus where indicated, a concise summary of geographic distribution, natural hosts, route of transmission and site within human host, and vectored pathogens are presented. Ubiquitous, human-adapted species as well as very rare, incidental zoonotic organisms are discussed in this annotated checklist. We also provide a list of 79 excluded genera and species that have been previously reported as human parasites but are not believed to be true human parasites or represent misidentifications or taxonomic changes.
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Affiliation(s)
- Blaine A. Mathison
- Institute for Clinical and Experimental Pathology, ARUP Laboratories, Salt Lake City, UT, USAInstitute for Clinical and Experimental PathologySalt Lake CityUnited States of America
| | - Sarah G. H. Sapp
- Parasitic Diseases Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USACenters for Disease Control and PreventionAtlantaUnited States of America
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Hatalova E, Guman T, Bednarova V, Simova VT, Logoida M, Halanova M. Occurrence of cryptosporidium parvum IIaA17G1R1 in hospitalized hemato-oncological patients in Slovakia. Parasitol Res 2021; 121:471-476. [PMID: 34735628 PMCID: PMC8566659 DOI: 10.1007/s00436-021-07294-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 08/16/2021] [Indexed: 11/28/2022]
Abstract
This study aimed to determine the presence of cryptosporidiosis in immunosuppressed patients hospitalized at the Clinic of Haematology and Oncohaematology in a form of routine screening. Samples were collected from November 2019 to February 2020, when the first wave of the Coronavirus pandemic occurred in Slovakia. A total of 36 samples were collected from patients hospitalized at the Clinic of Haematology and Oncohaematology, both from the open ward and the intensive care unit. For the diagnosis of cryptosporidiosis, a nested PCR targeting the gp60 gene and the SSU rRNA locus was used. From the 36 samples, Cryptosporidium parvum subtype IIaA17G1R1 was diagnosed in 9 patients (7 from the open ward and 2 from the intensive care unit), all hospitalized at the clinic at the same time, in February 2020. The occurrence of the same species and subtype, Cryptosporidium parvum IIaA17G1R1, in 9 patients hospitalized at the same time, both at the open ward and the intensive care unit may suggest a possible transmission occurred at the clinic.
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Affiliation(s)
- Elena Hatalova
- Department of Epidemiology, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, Trieda SNP1, 040 11, Kosice, Slovakia
| | - Tomas Guman
- Clinic of Haematology and Oncohaematology, Faculty of Medicine, Pavol Jozef Safarik University and Louis Pasteur University Hospital in Kosice, Trieda SNP 1, 040 11, Kosice, Slovakia.
| | - Veronika Bednarova
- Department of Epidemiology, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, Trieda SNP1, 040 11, Kosice, Slovakia
| | - Vladimira Turcok Simova
- Department of Epidemiology, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, Trieda SNP1, 040 11, Kosice, Slovakia
| | - Mariia Logoida
- Department of Epidemiology, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, Trieda SNP1, 040 11, Kosice, Slovakia
| | - Monika Halanova
- Department of Epidemiology, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, Trieda SNP1, 040 11, Kosice, Slovakia
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Kivistö R, Kämäräinen S, Huitu O, Niemimaa J, Henttonen H. Zoonotic Cryptosporidium spp. in Wild Rodents and Shrews. Microorganisms 2021; 9:microorganisms9112242. [PMID: 34835368 PMCID: PMC8618411 DOI: 10.3390/microorganisms9112242] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 11/26/2022] Open
Abstract
There has been a significant increase in the number of reported human cryptosporidiosis cases in recent years. The aim of this study is to estimate the prevalence of Cryptosporidium spp. in wild rodents and shrews, and investigate the species and genotype distribution to assess zoonotic risk. Partial 18S rRNA gene nested-PCR reveals that 36.8, 53.9 and 41.9% of mice, voles and shrews are infected with Cryptosporidium species. The highest prevalence occurred in the Microtus agrestis (field vole) and Myodes glareolus (bank vole). Interestingly, bank voles caught in fields were significantly more often Cryptosporidium-positive compared to those caught in forests. The proportion of infected animals increases from over-wintered (spring and summer) to juveniles (autumn) suggesting acquired immunity in older animals. Based on Sanger sequencing and phylogenetic analyses, Apodemus flavicollis (yellow-necked mouse) is commonly infected with zoonotic C. ditrichi. Voles carry multiple different Cryptosporidium sp. and genotypes, some of which are novel. C. andersoni, another zoonotic species, is identified in the Craseomys rufocanus (grey-sided vole). Shrews carry novel shrew genotypes. In conclusion, this study indicates that Cryptosporidium protozoan are present in mouse, vole and shrew populations around Finland and the highest zoonotic risk is associated with C. ditrichi in Apodemus flavicollis and C. andersoni in Craseomys rufocanus. C. parvum, the most common zoonotic species in human infections, was not detected.
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Affiliation(s)
- Rauni Kivistö
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, FI-00790 Helsinki, Finland;
- Correspondence:
| | - Sofia Kämäräinen
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, FI-00790 Helsinki, Finland;
| | - Otso Huitu
- Natural Resources Institute Finland (Luke), FI-33720 Tampere, Finland;
| | - Jukka Niemimaa
- Natural Resources Institute Finland (Luke), FI-00790 Helsinki, Finland; (J.N.); (H.H.)
| | - Heikki Henttonen
- Natural Resources Institute Finland (Luke), FI-00790 Helsinki, Finland; (J.N.); (H.H.)
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Review on Emerging Waterborne Pathogens in Africa: The Case of Cryptosporidium. WATER 2021. [DOI: 10.3390/w13212966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Water-related diseases, particularly waterborne diseases, remain significant sources of morbidity and mortality worldwide but especially in developing countries. Emerging waterborne pathogens represent a major health risk. Cryptosporidium is one such pathogen which is globally recognized as a major cause of diarrhea in children and adults. The objective of this paper is not only to review published studies on the impact of these emerging waterborne pathogens but also to identify the various risk factors that favor their transmission. A number of envisaged and needed actions to tackle the challenge of these pathogens in Africa have also been discussed. We have searched the web of ScienceDirect, PubMed, Scopus. ISI Web of Science, SpringerLink, and Google Scholar. The first database search yielded 3099 articles. As a result, 141 studies were submitted for abstract review. A total of 68 articles were selected for full text analysis. After evaluating a considerable number of articles on this topic, the following results were obtained. A number of pathogens are likely to present public health risks, including Cryptosporidium. The contaminating potential of these pathogens is associated with a multitude of factors, such as the effects of climate change, social and behavioral aspects of local populations, water issues, geographical locations that may cause isolation, and inequalities due to lack of transparency of governments in the distribution of financial resources. We stress the need to maintain and strengthen real-time surveillance and rapid epidemiological responses to outbreaks and the emergence of new waterborne pathogens in all countries. African governments, for their part, should be aware of future risks of waterborne protozoan diseases. They must provide immediate and effective responses by establishing technical and financial mechanisms to ensure sufficient quantities of safe drinking water, sewage disposal, and hygiene for all.
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Forbes O, Hosking R, Mokany K, Lal A. Bayesian spatio-temporal modelling to assess the role of extreme weather, land use change and socio-economic trends on cryptosporidiosis in Australia, 2001-2018. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 791:148243. [PMID: 34412375 DOI: 10.1016/j.scitotenv.2021.148243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/23/2021] [Accepted: 05/29/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Intensification of land use threatens to increase the emergence and prevalence of zoonotic diseases, with an adverse impact on human wellbeing. Understanding how the interaction between agriculture, natural systems, climate and socioeconomic drivers influence zoonotic disease distribution is crucial to inform policy planning and management to limit the emergence of new infections. OBJECTIVES Here we assess the relative contribution of environmental, climatic and socioeconomic factors influencing reported cryptosporidiosis across Australia from 2001 to 2018. METHODS We apply a Bayesian spatio-temporal analysis using Integrated Nested Laplace Approximation (INLA). RESULTS We find that area-level risk of reported disease are associated with the proportions of the population under 5 and over 65 years of age, socioeconomic disadvantage, annual rainfall anomaly, and the proportion of natural habitat remaining. This combination of multiple factors influencing cryptosporidiosis highlights the benefits of a sophisticated spatio-temporal statistical approach. Two key findings from our model include: an estimated 4.6% increase in the risk of reported cryptosporidiosis associated with 22.8% higher percentage of postal area covered with original habitat; and an estimated 1.8% increase in disease risk associated with a 77.99 mm increase in annual rainfall anomaly at the postal area level. DISCUSSION These results provide novel insights regarding the predictive effects of extreme rainfall and the proportion of remaining natural habitat, which add unique explanatory power to the model alongside the variance associated with other predictive variables and spatiotemporal variation in reported disease. This demonstrates the importance of including perspectives from land and water management experts for policy making and public health responses to manage environmentally mediated diseases, including cryptosporidiosis.
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Affiliation(s)
- Owen Forbes
- Research School of Population Health, Australian National University, Acton, Australia; School of Mathematical Sciences, Queensland University of Technology, Brisbane, Australia; ARC Centre of Excellence for Mathematical and Statistical Frontiers (ACEMS), Brisbane, Australia
| | - Rose Hosking
- Research School of Population Health, Australian National University, Acton, Australia
| | - Karel Mokany
- Macroecological Modelling, CSIRO Land & Water, Black Mountain Laboratories, Canberra, ACT, Australia
| | - Aparna Lal
- Research School of Population Health, Australian National University, Acton, Australia.
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Molecular prevalence of Cryptosporidium isolates among Egyptian children with cancer. J Parasit Dis 2021; 45:746-753. [PMID: 34475656 DOI: 10.1007/s12639-020-01345-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 12/31/2020] [Indexed: 11/09/2022] Open
Abstract
Immunocompromised individuals especially children with cancer are at risk for acquiring cryptosporidiosis, which can result in severe morbidity and mortality. This work was conducted to evaluate the prevalence of Cryptosporidium parasite and its genotypes in children with cancer. Stool specimens were collected from 145 children in the Oncology unit of Pediatric Department, Zagazig University Hospital, Sharqiyah province, Egypt. Cryptosporidium infection was evaluated using modified Ziehl-Neelsen (MZN) staining and nested polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. The prevalence of Cryptosporidium infection in oncological children was 29.7% using microscopy and 25.5% using nested PCR. Genotypic characterization showed that 23 (62.2%) had C. hominis, 11 (29.7%) C. parvum, and 3 specimens (8.1%) were mixed infection of both genotypes. Cryptosporidiosis was significantly associated with diarrhea. However, no statistically significant difference was detected between the age, gender, residency, animal contact and malignancy type concerning to Cryptosporidium infection. This study concluded that Cryptosporidium is a prevailing opportunistic parasite among children with cancer. It should be considered in oncological patients especially those suffering from diarrhea which requires proper management to reduce its complications.
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Hussain S, Mohsin Bukhari S, Wang L, Khalid N, Hou Z. Exploration of Zoo felids in North-East China for the prevalence and molecular identification of Cryptosporidium spp. PeerJ 2021; 9:e11819. [PMID: 34466282 PMCID: PMC8380424 DOI: 10.7717/peerj.11819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 06/29/2021] [Indexed: 11/20/2022] Open
Abstract
Cryptosporidium spp. is a protozoan having the potential to cause zoonosis in humans and animals. Despite the zoonotic importance of this protozoan parasite, limited data are available about its prevalence in zoo felids in North-Eastern China. Hence, the current study was designed to determine the occurrence and molecular characterization of Cryptosporidium spp. from the fecal samples of captive zoo felids. Fecal samples (N = 244) were collected from different felids from five different zoos of North-Eastern China. 18S rRNA gene was amplified from the genomic DNA using species specific primers in nested polymerase chain reaction (nPCR) and Cryptosporidium parvum and Cryptosporidium spp. was found. The overall prevalence of Cryptosporidium was 9.43% (23/244). The 18S rRNA gene similarity analysis showed that 6 Cryptosporidium isolates were Cryptosporidium parvum and the remaining 17 Cryptosporidium isolates were resembling to a Cryptosporidium spp., which is similar to Cryptosporidium NEV10. Phylogenetic tree was constructed based on 18S rRNA of Cryptosporidium spp. The similarity of Cryptosporidium parvum was with its other isolates in China, India, Iran, Iraq, Turkey, Czech Republic, Spain and USA while Cryptosporidium NEV10 alike had a close relationship with Turkish isolates. In conclusion, Cryptosporidium was prevailing in feline animals of China zoo and zoo officials are directed to consider their control policy as it can be a cause of zoonosis.
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Affiliation(s)
- Shakeel Hussain
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Syed Mohsin Bukhari
- Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Lixin Wang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Nimra Khalid
- Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Zhijun Hou
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China.,Key Laboratory of Wildlife Conservation, China State Forestry Administration, Harbin, China
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Golomazou E, Malandrakis EE, Panagiotaki P, Karanis P. Cryptosporidium in fish: Implications for aquaculture and beyond. WATER RESEARCH 2021; 201:117357. [PMID: 34147739 DOI: 10.1016/j.watres.2021.117357] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Aquaculture industries are expanding worldwide and control of Cryptosporidium is of great importance. Cryptosporidiosis is a serious waterborne/foodborne disease, responsible for infectious outbreaks globally. Current knowledge on the Cryptosporidium species in the aquatic environment and their occurrence in piscine hosts is steadily increasing since the Cryptosporidium species have been detected in marine, freshwater, cultured, captive and ornamental fish in a wide range of geographical regions. The zoonotic potential of these parasites and their pathological impact on piscine hosts have been increasingly reported and the fishborne zoonotic risk from Cryptosporidium spp. is of major importance from a public health point of view. Zoonotic subtypes in fish have been described in various studies and are probably related to water contamination from animal and human wastes. This review critically evaluated existing scientific data, related to Cryptosporidium species in piscine hosts, emphasizing transmission routes and the potential impact of piscine cryptosporidiosis in aquaculture. This knowledge will facilitate consumers, authorities and water industries such as fisheries and aquaculture, the prevention and control of waterborne and fishborne cryptosporidiosis in fish products.
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Affiliation(s)
- E Golomazou
- Department of Ichthyology and Aquatic Environment - Aquaculture Laboratory, School of Agricultural Sciences, University of Thessaly, Fytokou str., 38446, Volos, Greece
| | - E E Malandrakis
- Department of Animal Science - Laboratory of Applied Hydrobiology, School of Animal Biosciences, Agricultural University of Athens, 75 Iera Odos str., 11855, Athens, Greece
| | - P Panagiotaki
- Department of Ichthyology and Aquatic Environment - Aquaculture Laboratory, School of Agricultural Sciences, University of Thessaly, Fytokou str., 38446, Volos, Greece
| | - P Karanis
- University of Cologne, Medical Faculty and University Hospital, 50931 Cologne, Germany; University of Nicosia Medical School, Department of Basic and Clinical Sciences, Anatomy Institute, 2408, Nicosia, Cyprus.
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Meng XZ, Li MY, Lyu C, Qin YF, Zhao ZY, Yang XB, Ma N, Zhang Y, Zhao Q. The global prevalence and risk factors of Cryptosporidium infection among cats during 1988-2021: A systematic review and meta-analysis. Microb Pathog 2021; 158:105096. [PMID: 34273476 DOI: 10.1016/j.micpath.2021.105096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/03/2021] [Accepted: 07/11/2021] [Indexed: 12/15/2022]
Abstract
Cryptosporidiosis is an important zoonosis caused by Cryptosporidium. This disease causes a global public health problem. The cat is considered to be one of the potential hosts for transmitting Cryptosporidium to humans. In this study, a global meta-analysis for Cryptosporidium infection in cats was performed. The articles related to Cryptosporidium infection in cats were systematically searched in databases China National Knowledge Infrastructure (CNKI), Wanfang data, VIP Chinese Journal Database, PubMed, and ScienceDirect. Finally, 92 articles published from 1988 to 2021, which met the criteria of systematic review and meta-analysis, were collected. During the selected period, the overall prevalence of Cryptosporidium among cats was identified to be 6.0%. The prevalence of Cryptosporidium detected by microscopy, coproantigens, and molecular biology methods were 4.2%, 8.2%, and 5.0%, respectively. Among 9 species/genotypes (C. felis, C. parvum, C. muris, Cryptosporidium rat genotype IV, C. baileyi, C. ryanae, C. hominis, Cryptosporidium sp. rat genotype III and most closely related to Cryptosporidium sp. rat genotype III), the prevalence of C. parvum (4.2%) was significantly higher than that of other species/genotypes. Among five continents, the prevalence of Cryptosporidium in Africa (30.5%) was significantly higher than in other continents. We also analyzed the effects of different geographical factors (longitude, latitude, altitude, mean temperature, precipitation, and humidity) on Cryptosporidium infection among cats. The results showed that cryptosporidiosis was common in cats all over the world. This systematic review and meta-analysis has systematically introduced the global epidemiology of Cryptosporidium in cats and correlated risk factors. Health authorities, doctors, veterinarians and cat owners' awareness of the prevalence, risk factors and complications of Cryptosporidium are important for the development of effective prevention strategies for cryptosporidiosis.
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Affiliation(s)
- Xiang-Zhu Meng
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China; College of Life Science, Changchun Sci-Tech University, Shuangyang, Jilin Province, 130600, PR China
| | - Man-Yao Li
- Marine College, Shandong University, Weihai, Shandong Province, 264209, PR China
| | - Chuang Lyu
- Shandong New Hope Liuhe Group Co., Ltd, Qingdao, 266100, PR China; Qingdao Jiazhi Biotechnology Co., Ltd, Qingdao, 266100, PR China
| | - Yi-Feng Qin
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China
| | - Zi-Yu Zhao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China
| | - Xin-Bo Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China
| | - Ning Ma
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China
| | - Yuan Zhang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Quan Zhao
- College of Life Science, Changchun Sci-Tech University, Shuangyang, Jilin Province, 130600, PR China.
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Uribe M, Payán E, Brabec J, Vélez J, Taubert A, Chaparro-Gutiérrez JJ, Hermosilla C. Intestinal Parasites of Neotropical Wild Jaguars, Pumas, Ocelots, and Jaguarundis in Colombia: Old Friends Brought Back from Oblivion and New Insights. Pathogens 2021; 10:pathogens10070822. [PMID: 34209062 PMCID: PMC8308835 DOI: 10.3390/pathogens10070822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/23/2021] [Accepted: 06/28/2021] [Indexed: 11/23/2022] Open
Abstract
Neotropical wild felids (NWF) are obligate carnivore species present in Central and South America, and some are considered endangered due to constantly decreasing populations. NWF can become infected by a wide range of protozoan and metazoan parasites, some of them affecting their health conditions and others having anthropozoonotic relevance. Parasitological studies on NWF are still very scarce, and most data originated from dead or captive animals. On this account, the current study aimed to characterize gastrointestinal parasites of free-ranging jaguars (Panthera onca), pumas (Puma concolor), ocelots (Leopardus pardalis), and jaguarundis (Herpailurus yagouaroundi), i.e., four out of six NWF species endemic to Colombia. Fecal samples from jaguars (n = 10) and ocelots (n = 4) were collected between 2012 and 2017 as part of the Jaguar Corridor Initiative from six geographic locations in Colombia. In addition, cestode specimens were obtained during puma and jaguarundi necropsies. Scat samples were processed by standardized sodium acetate-acetic acid-formalin (SAF), sedimentation, and flotation techniques and by carbol fuchsin-stained fecal smears. Morphological evaluation of feces showed the presence of one cestode (Spirometra sp.), a nematode (Toxocara cati), an acanthocephalan (Oncicola sp.), and one cyst-forming coccidian (Cystoisospora-like oocysts). Feces oocysts were submitted to a Toxoplasma gondii-specific PCR for species identification, but no product was amplified. The cestodes isolated from a puma and jaguarundi were molecularly characterized by sequencing cytochrome c oxidase subunit I, identifying them as Taenia omissa and as a T. omissa sister lineage, respectively. These results collectively demonstrate the potential role of NWF as natural reservoir hosts for neglected zoonotic parasites (e.g., Spirometra sp., T. cati) and highlight their possible role in parasite transmission to human communities. Due to public health concerns, the occurrence of these parasites should be monitored in the future for appropriate zoonotic management practices in conservation strategies and wild felid health management programs.
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Affiliation(s)
- Manuel Uribe
- Biomedical Research Center Seltersberg (BFS), Institute of Parasitology, Justus Liebig University Giessen, 35392 Giessen, Germany; (M.U.); (J.V.); (A.T.)
- CIBAV Research Group, Veterinary Medicine School, Universidad de Antioquia, Medellín 050034, Colombia;
| | | | - Jan Brabec
- Biology Centre of the Czech Academy of Sciences, Institute of Parasitology, 370 05 České Budějovice, Czech Republic;
| | - Juan Vélez
- Biomedical Research Center Seltersberg (BFS), Institute of Parasitology, Justus Liebig University Giessen, 35392 Giessen, Germany; (M.U.); (J.V.); (A.T.)
| | - Anja Taubert
- Biomedical Research Center Seltersberg (BFS), Institute of Parasitology, Justus Liebig University Giessen, 35392 Giessen, Germany; (M.U.); (J.V.); (A.T.)
| | | | - Carlos Hermosilla
- Biomedical Research Center Seltersberg (BFS), Institute of Parasitology, Justus Liebig University Giessen, 35392 Giessen, Germany; (M.U.); (J.V.); (A.T.)
- Correspondence: ; Tel.: +49-64-1993-8457
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Souza SLPD, Benatti HR, Luz HR, Costa FB, Pacheco RDC, Labruna MB. Endoparasites of capybaras (Hydrochoerus hydrochaeris) from anthropized and natural areas of Brazil. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2021; 30:e027420. [PMID: 34076155 DOI: 10.1590/s1984-29612021049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
This study aimed to evaluate the occurrence of endoparasites in fecal samples of capybaras from anthropized areas in seven cities in the state of São Paulo, southeastern Brazil, and natural areas in two locations in the Pantanal biome. For the parasitological evaluation of samples, feces were subjected to centrifugal sedimentation in water-ether and centrifugal flotation in sucrose solution. Out of the 113 samples examined, 97.3% (110/113) were positive for the presence of helminth eggs and/or protozoan oocysts, with 96.7% (89/92) and 100% (21/21) in capybaras from anthropized and natural areas, respectively. Helminth eggs belonging to the Class Cestoda (Monoecocestus spp.), Class Digenea, and Class Nematoda (Trichostrongyloidea, Strongyloides chapini, Protozoophaga obesa, and Capillaria hydrochoeri) were detected. Coccidia oocysts of Eimeria spp. and Cryptosporidium spp. were detected. The difference found was in the occurrence of S. chapini between anthropized and natural areas, as S. chapini was not detected in natural areas. Capybaras from anthropized areas showed a greater species richness of endoparasites, including species such as Fasciola hepatica and Cryptosporidium spp., that might have zoonotic potential.
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Affiliation(s)
- Silvio Luís Pereira de Souza
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, São Paulo, SP, Brasil
| | - Hector Ribeiro Benatti
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, São Paulo, SP, Brasil
| | - Hermes Ribeiro Luz
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, São Paulo, SP, Brasil
- Departamento de Patologia, Programa de Pós-graduação em Biotecnologia do Renorbio, Ponto Focal Maranhão, Universidade Federal do Maranhão - UFMA, São Luís, MA, Brasil
| | - Francisco Borges Costa
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, São Paulo, SP, Brasil
- Departamento de Patologia, Faculdade de Medicina Veterinária, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Richard de Campos Pacheco
- Programa de Pós-graduação em Ciências Veterinárias, Faculdade de Medicina Veterinária, Universidade Federal de Mato Grosso, Cuiabá, MT, Brasil
| | - Marcelo Bahia Labruna
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, São Paulo, SP, Brasil
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Trogu T, Formenti N, Marangi M, Viganò R, Bionda R, Giangaspero A, Lanfranchi P, Ferrari N. Detection of Zoonotic Cryptosporidium ubiquitum in Alpine Wild Ruminants. Pathogens 2021; 10:pathogens10060655. [PMID: 34070669 PMCID: PMC8228762 DOI: 10.3390/pathogens10060655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 01/09/2023] Open
Abstract
Cryptosporidium is a widespread apicomplexan protozoan of major zoonotic importance, characterized by a wide host range, and with relevant economic implications and potential negative effects on livestock and wildlife population dynamics. Considering the recent strong demographic increase of alpine ungulates, in this study, carried out in the Italian Northwestern Alps, we investigated the occurrence of Cryptosporidium spp. in these species and their potential involvement in environmental contamination with Cryptosporidium spp. oocysts. The immune-enzymatic approach revealed a Cryptosporidium prevalence of 1.7% (5/293), 0.5% (1/196) and 3.4% (4/119) in alpine chamois (Rupicapra rupicapra), red deer (Cervus elaphus) and roe deer (Capreolus capreolus), respectively. Positive samples were subjected to polymerase chain reaction (PCR) amplification for the COWP and gp60 genes. The presence of Cryptosporidium was confirmed in one chamois and four roe deer. Sequences obtained clustered within Cryptosporidium ubiquitum, currently recognized as an emerging zoonotic species. This finding represents the first detection of zoonotic C. ubiquitum in chamois and in the Alpine environment. Despite the low observed prevalences, environmental contamination by oocysts could play a role as a potential source of infections for humans and livestock.
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Affiliation(s)
- Tiziana Trogu
- Istituto Zooprofilattico Sperimentale della Lombardia e dell’Emilia Romagna ‘‘Bruno Ubertini’’ (IZSLER), via Bianchi 7/9, 25124 Brescia, Italy;
| | - Nicoletta Formenti
- Istituto Zooprofilattico Sperimentale della Lombardia e dell’Emilia Romagna ‘‘Bruno Ubertini’’ (IZSLER), via Bianchi 7/9, 25124 Brescia, Italy;
- Correspondence:
| | - Marianna Marangi
- Dipartimento di Scienze Agrarie, degli Alimenti e dell’Ambiente, Università degli Studi di Foggia, via Napoli 25, 71121 Foggia, Italy; (M.M.); (A.G.)
| | - Roberto Viganò
- Studio Associato AlpVet, Piazza Venzaghi 2, 21052 Busto Arsizio, Italy;
| | - Radames Bionda
- Ente di Gestione delle Aree Protette dell’Ossola, Villa Gentinetta-Viale Pieri 27, 28868 Varzo, Italy;
| | - Annunziata Giangaspero
- Dipartimento di Scienze Agrarie, degli Alimenti e dell’Ambiente, Università degli Studi di Foggia, via Napoli 25, 71121 Foggia, Italy; (M.M.); (A.G.)
| | - Paolo Lanfranchi
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, via dell’Università 6, 26900 Lodi, Italy; (P.L.); (N.F.)
| | - Nicola Ferrari
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, via dell’Università 6, 26900 Lodi, Italy; (P.L.); (N.F.)
- Centro di Ricerca Coordinata Epidemiologia e Sorveglianza Molecolare delle Infezioni, EpiSoMI, Università degli Studi di Milano, 20133 Milan, Italy
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Li X, Atwill ER. Diverse Genotypes and Species of Cryptosporidium in Wild Rodent Species from the West Coast of the USA and Implications for Raw Produce Safety and Microbial Water Quality. Microorganisms 2021; 9:microorganisms9040867. [PMID: 33920594 PMCID: PMC8073747 DOI: 10.3390/microorganisms9040867] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 11/25/2022] Open
Abstract
Cryptosporidium spp. are protozoan parasites that infect perhaps all vertebrate animals, with a subset of species and genotypes that function as food- and waterborne pathogens. The objective of this work was to collate the Cryptosporidium species and genotypes from common wild rodents on the west coast of the USA and update the information regarding the zoonotic potential of Cryptosporidium from these ubiquitous wild species. Representative sequences of the 18S rRNA gene for a unique set of Cryptosporidium isolates obtained from deer mice, house mice, mountain beavers, yellow-bellied marmot, long-tailed vole, California ground squirrels, Belding’s ground squirrels, and a golden-mantled ground squirrel in GenBank were selected for phylogenetic analysis. Phylogenetic and BLAST analysis indicated that 4 (18%) of the 22 unique Cryptosporidium sequences from these wild rodent species were 99.75% to 100% identical to known zoonotic species (C. parvum, C. ubiquitum, C. xiaoi), suggesting that a minority of these representative Cryptosporidium isolates could have a public health impact through food and waterborne routes of human exposure. These zoonotic isolates were shed by deer mice and a yellow-bellied marmot from California, and from a mountain beaver trapped in Oregon. In addition, the group of unique Cryptosporidium isolates from deer mice and ground dwelling squirrels exhibited considerable DNA diversity, with multiple isolates appearing to be either host-limited or distributed throughout the various clades within the phylogenetic tree representing the various Cryptosporidium species from host mammals. These results indicate that only a subset of the unique Cryptosporidium genotypes and species obtained from wild rodents on the US west coast are of public health concern; nevertheless, given the geographic ubiquity of many of these host species and often high density at critical locations like municipal watersheds or produce production fields, prudent pest control practices are warranted to minimize the risks of water- and foodborne transmission to humans.
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Affiliation(s)
- Xunde Li
- Western Institute for Food Safety and Security, University of California, Davis, CA 95616, USA;
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Edward Robert Atwill
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
- Correspondence:
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Prevalence of cryptosporidiosis among children with diarrhoea under five years admitted to Kosti teaching hospital, Kosti City, Sudan. BMC Infect Dis 2021; 21:349. [PMID: 33853528 PMCID: PMC8048339 DOI: 10.1186/s12879-021-06047-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/05/2021] [Indexed: 11/29/2022] Open
Abstract
Background Cryptosporidiosis is a disease caused by infection with an intestinal coccidian parasite Cryptosporidium. Cryptosporidium species are the second leading cause of diarrheal disease and death in children in developing countries. Until now, no data have been available or published on its prevalence among children with diarrhea in Sudan. Therefore, this paper was designed to determine the prevalence rate of Cryptosporidium among children with diarrhea under 5 years who were admitted to Kosti Teaching Hospital. Methods A hospital-based cross-sectional study including children under 5 years old admitted to the pediatric section of the hospital between September 2020 and December 2020. A total of one-hundred and fifty stool samples were collected. All stool samples were examined using the modified Ziehl Neelsen (mZN) staining technique and then examined microscopically for Cryptosporidium infection. Results A total of 150 children were examined out of which 70 presented with diarrhea. A greater prevalence of 19/70 (27.1%) of Cryptosporidium was observed in children with diarrhea than children without diarrhea 7/80 (8.8%). There was a significant relationship between the prevalence of Cryptosporidium and the presence of diarrhea in children under 5 years in the Kosti Teaching Hospital(P < 0.05). It was found that a higher prevalence was registered among children using piped-water sources for drinking. Conclusions The overall prevalence of parasite detected was 17.3% among children admitted to Kosti Teaching Hospital. The prevalence rate of the infection among Children with diarrhoea was 27.1%. Studying the prevalence rate of cryptosporidiosis among diarrheic children may predict their health status, leading to a better diagnosis, treatment, and, therefore, patients’ status improvement.
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Seabolt MH, Alderisio KA, Xiao L, Roellig DM. Prevalence and molecular characterization of novel species of the Diplomonad genus Octomitus (Diplomonadida: Giardiinae) from wildlife in a New York watershed. INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE 2021; 14:267-272. [PMID: 33898227 PMCID: PMC8056139 DOI: 10.1016/j.ijppaw.2021.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 11/28/2022]
Abstract
Octomitus is a diplomonad genus known to inhabit the intestinal tracts of rodents. Ultrastructural morphology and 18S rDNA gene sequence analysis support the placement of Octomitus as the closest sister lineage to Giardia, a parasite which causes diarrheal disease in humans and animals worldwide. However, further information on the ecology and diversity of Octomitus is currently scarce. Expanding the available database of characterized sequences for this organism would therefore be helpful to studies of Diplomonad ecology, evolution, and epidemiology, particularly related to the evolution of parasitism in Giardia and Spironucleus, another related Diplomonad common in commercial fish farming. In order to study the prevalence and genotypic diversity of Octomitus, we developed a nested PCR assay specific to Octomitus and optimized to detect genotypes in fecal samples collected from wildlife in a New York watershed, and sequenced a portion of the small subunit ribosomal DNA (18S rDNA) gene to identify samples to species level. Molecular evidence suggested that Octomitus genotypes display similar prevalence to Cryptosporidium and microsporidian pathogens in wildlife as well as strong host preference for rodent and opossum hosts. Phylogenetic analysis showed strong support for 14 Octomitus genotypes, 13 of these novel, and patterns of host-parasite co-evolution. First molecular detection assay for novel Octomitus genotypes. 13 new Octomitus genotypes are identified in diverse rodent hosts and a marsupial. Comparable prevalence of Octomitus in wildlife to Cryptosporidium and microsporidia (24.3%). Octomitus likely has little, if any, public health impact.
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Affiliation(s)
- Matthew H Seabolt
- Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, 30329, USA.,CFD Research Corporation, Huntsville, AL, 38506, USA
| | - Kerri A Alderisio
- Division of Water Quality Science and Research, Bureau of Water Supply, New York City Department of Environmental Protection, Valhalla, NY, USA
| | - Lihua Xiao
- Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, Guangdong, 510642, China
| | - Dawn M Roellig
- Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, 30329, USA
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Jones KR, Tardieu L. Giardia and Cryptosporidium in Neo-Tropical Rodents and Marsupials: Is There Any Zoonotic Potential? Life (Basel) 2021; 11:life11030256. [PMID: 33804628 PMCID: PMC8003710 DOI: 10.3390/life11030256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 11/16/2022] Open
Abstract
Cryptosporidiosis and giardiasis have been identified as emerging diseases in both developed and developing countries. Wildlife has been highlighted to play a major role in the spread of these diseases to humans. This review aims to highlight the research findings that relate to Cryptosporidium spp. and Giardia spp., with a focus on (1) parasitism of neo-tropical hystricomorphic rodents and marsupials from the genus Didelphis and (2) prevention and treatment strategies for humans and animals for the neo-tropical region. It was found that there are few studies conducted on neo-tropical rodent and marsupial species, but studies that were found illustrated the potential role these animals may play as zoonotic carriers of these two parasites for the neo-tropical region. Thus, it is recommended that further studies be done to assess the threat of protozoan parasites in neo-tropical wildlife to humans and domestic animals, and to further determine the most effective prophylaxis adapted for the unique conditions of the region.
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Affiliation(s)
- Kegan Romelle Jones
- Department of Food Production (DFP), Faculty of Food and Agriculture (FFA), St. Augustine Campus, University of the West Indies (UWI), St. Augustine, Trinidad and Tobago;
- Department of Basic Veterinary Sciences (DBVS), Faculty of Medical Sciences (FMS), School of Veterinary Medicine (SVM), Mt. Hope Campus, University of the West Indies (UWI), Mount Hope, Trinidad and Tobago
- Correspondence: ; Tel.: +1-868-787-0833
| | - Laura Tardieu
- Department of Food Production (DFP), Faculty of Food and Agriculture (FFA), St. Augustine Campus, University of the West Indies (UWI), St. Augustine, Trinidad and Tobago;
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Resnhaleksmana E, Wijayanti MA, Artama WT. A POTENTIAL ZOONOTIC PARASITE: CRYPTOSPORIDIUM PARVUM TRANSMISSION IN RATS, PIGS AND HUMANS IN WEST LOMBOK, INDONESIA. Afr J Infect Dis 2021; 15:44-51. [PMID: 33889802 PMCID: PMC8052970 DOI: 10.21010/ajid.v15i2.8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Cryptosporidium is a neglected zoonotic disease, but with the expansion of the human community into the animal environment, its incidence is increasing. Animals such as rats and pigs can act as intermediate hosts and transmit Cryptosporidium to humans due to their proximity. Transmission occurs due to the ability of Cryptosporidium to survive in any new host. The research aimed to identify and describe the transmission of Cryptosporidium from animals to humans. MATERIALS AND METHODS This research was a cross sectional study and samples were collected from 84 rats caught in residential areas, 205 pigs, and 438 humans in West Lombok. Fecal samples were examined using polymerase chain reaction (PCR) and sequencing to isolate the presence of Cryptosporidium, and identify the genetic similarity of the parasites found in rats and pigs with those that infect humans. RESULTS The PCR results found Cryptosporidium parvum in 4.76% (4/84) in rats; 6.34% 13/205) in pigs; and 0.91% (4/438) in humans. The sequencing results showed genetic kinship of C. parvum in rats, pigs, and humans. Based on sequence confirmation from Gene Banks and edited using ClustalW with MEGA X software, there are genetic similarities between Cryptosporidium isolates from West Lombok and C. suis isolates of cattle from Uganda and C. suis isolates of pigs from Slovakia. CONCLUSION There are genetic similarities of Cryptosporidium in animals and humans, requiring that the Public Health programs in those contaminated areas must receive priority attention to prevent further transmission of these potentially fatal parasites.
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Affiliation(s)
- Ersandhi Resnhaleksmana
- Department of Medical Laboratory Technology, Politeknik Kesehatan Mataram, Mataram, Indonesia.Doctoral Program, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
- Department of Medical Laboratory Technology, Politeknik Kesehatan Mataram, Mataram, Indonesia
| | - Mahardika Agus Wijayanti
- Department of Parasitology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
- Centre for Tropical Medicine, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Wayan Tunas Artama
- Department of Biochemistry, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
- One Health/Ecohealth Resource Center, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Yanta CA, Bessonov K, Robinson G, Troell K, Guy RA. CryptoGenotyper: A new bioinformatics tool for rapid Cryptosporidium identification. Food Waterborne Parasitol 2021; 23:e00115. [PMID: 33748443 PMCID: PMC7966988 DOI: 10.1016/j.fawpar.2021.e00115] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 02/09/2021] [Accepted: 02/15/2021] [Indexed: 01/09/2023] Open
Abstract
Cryptosporidium is a protozoan parasite that is transmitted to both humans and animals through zoonotic or anthroponotic means. When a host is infected with this parasite, it causes a gastrointestinal disease known as cryptosporidiosis. To understand the transmission dynamics of Cryptosporidium, the small subunit (SSU or 18S) rRNA and gp60 genes are commonly studied through PCR analysis and conventional Sanger sequencing. However, analyzing sequence chromatograms manually is both time consuming and prone to human error, especially in the presence of poorly resolved, heterozygous peaks and the absence of a validated database. For this study, we developed a Cryptosporidium genotyping tool, called CryptoGenotyper, which has the capability to read raw Sanger sequencing data for the two common Cryptosporidium gene targets (SSU rRNA and gp60) and classify the sequence data into standard nomenclature. The CryptoGenotyper has the capacity to perform quality control and properly classify sequences using a high quality, manually curated reference database, saving users' time and removing bias during data analysis. The incorporated heterozygous base calling algorithms for the SSU rRNA gene target resolves double peaks, therefore recovering data previously classified as inconclusive. The CryptoGenotyper successfully genotyped 99.3% (428/431) and 95.1% (154/162) of SSU rRNA chromatograms containing single and mixed sequences, respectively, and correctly subtyped 95.6% (947/991) of gp60 chromatograms without manual intervention. This new, user-friendly tool can provide both fast and reproducible analyses of Sanger sequencing data for the two most common Cryptosporidium gene targets.
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Affiliation(s)
- Christine A Yanta
- National Microbiology Laboratory, Public Health Agency of Canada, 110 Stone Road West, Guelph, ON N1G 3W4, Canada
| | - Kyrylo Bessonov
- National Microbiology Laboratory, Public Health Agency of Canada, 110 Stone Road West, Guelph, ON N1G 3W4, Canada
| | - Guy Robinson
- Cryptosporidium Reference Unit, Public Health Wales, Microbiology and Health Protection, Singleton Hospital, Swansea SA2 8QA, UK.,Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK
| | - Karin Troell
- National Veterinary Institute, 751 89 Uppsala, Sweden.,Department of Medical Biochemistry and Microbiology, Uppsala University, Sweden
| | - Rebecca A Guy
- National Microbiology Laboratory, Public Health Agency of Canada, 110 Stone Road West, Guelph, ON N1G 3W4, Canada
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