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dos Reis LL, de Souza LSS, Fonseca FR, Nava AFD, Vicente ACP. Zoonotic assemblages A and B of Giardia duodenalis in Chiroptera from Brazilian Amazon biome. One Health 2024; 19:100853. [PMID: 39071487 PMCID: PMC11277728 DOI: 10.1016/j.onehlt.2024.100853] [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: 05/09/2024] [Revised: 07/02/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
Bats are important reservoirs and spreaders of pathogens. Giardia duodenalis is a globally important protozoan that infects humans and other mammals with considerable public health burden, particularly on the child development. Based on genetic variation and host specificity, G. duodenalis is categorized into eight genotypes/assemblages A-H. Assemblages A and B are widespread globally and are associated with human and animal disease. There is evidence of Giardia in the bat feces from diverse geographic regions, but the G. duodenalis assemblages are unknown, which is a key point for the One Health view. Here, we successfully amplified the BG/GDH/DIS3/HCMP2/HCMP3 targets of G. duodenalis from five bat species captured in the Brazilian Amazon biome revealing the presence of zoonotic G. duodenalis assemblages A and B in the feces of these flying mammals. Our study reveals that bats may play a role in transmission of zoonotic G. duodenalis, at least in this biome.
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Affiliation(s)
- Lisiane Lappe dos Reis
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas & Maria Deane, Laboratório de Diversidade Microbiana da Amazônia de Importância para a Saúde - DMAIS, Manaus, AM, Brazil
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Genética Molecular de Microrganismos - LGMM, Rio de Janeiro, RJ, Brazil
| | - Lirna Salvioni Silva de Souza
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas & Maria Deane, Laboratório de Diversidade Microbiana da Amazônia de Importância para a Saúde - DMAIS, Manaus, AM, Brazil
| | - Fernanda Rodrigues Fonseca
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas & Maria Deane, Laboratório de Modelagem em Estatística, Geoprocessamento e Epidemiologia - LEGEPI, Manaus, AM, Brazil
| | - Alessandra Ferreira Dales Nava
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas & Maria Deane, Laboratório de Ecologia de Doenças Transmissíveis na Amazônia - EDTA, Manaus, AM, Brazil
| | - Ana Carolina Paulo Vicente
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Genética Molecular de Microrganismos - LGMM, Rio de Janeiro, RJ, Brazil
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Bastaminejad S, Eskandari P, Mohammadi MR, Shamsi L, Asghari A, Shahabi S, Omidian M, Pouryousef A, Shahriari B. Identification of Blastocystis spp. in Urban Rodents of Different Districts in Southwestern Iran: Subtype Distribution and Possible Zoonotic Potential. Acta Parasitol 2024; 69:922-928. [PMID: 38489010 DOI: 10.1007/s11686-024-00815-0] [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: 08/14/2023] [Accepted: 01/22/2024] [Indexed: 03/17/2024]
Abstract
PURPOSE Rodents are one of the most abundant and diverse species of mammals and have recently been identified as carriers of numerous human pathogens. The current study was conducted to assess the prevalence, subtype (STs) distribution, and zoonotic potential of Blastocystis spp. in various species of rodents in Shiraz, southwestern Iran. METHODS For this aim, a total of 120 fresh fecal samples were collected from Mus musculus (n = 40), Rattus norvegicus (n = 40), and Rattus rattus (n = 40) in various municipality districts of Shiraz (6 out of 10 districts) between February and November 2020. Upon detecting parasites using light microscopy, a DNA fragment of the Blastocystis SSU rDNA gene was amplified using conventional PCR. RESULTS By employing direct wet mount examination, 8 out of 120 fecal samples (6.7%; 2 from house mice, 3 from black rats, and 3 from brown rats) tested positive. Similarly, 5% (2/40) of house mice, 7.5% (3/40) of black rats, and 7.5% (3/40) of brown rats tested positive using the molecular method. Phylogenetic analysis revealed that the Blastocystis infecting different rodent species in Shiraz belonged to two potentially zoonotic STs (ST1 and ST4). Accordingly, rodents should not be overlooked as potential reservoirs of zoonotic Blastocystis infections. Different sampled urban districts and their statistical association with reported prevalence rates were analyzed separately. CONCLUSION Overall, the issue of the frequency and ST distribution of Blastocystis in urban rodents of Iran is still open to question and for a proper understanding, wider and more comprehensive studies are needed.
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Affiliation(s)
- Saiyad Bastaminejad
- Department of Genetics and Molecular Medicine, School of ParaMedicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Parand Eskandari
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Mohammadi
- Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Laya Shamsi
- Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Ali Asghari
- Zoonoses Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Saeed Shahabi
- Department of Biology and Control of Disease Vectors, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mostafa Omidian
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Pouryousef
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bahador Shahriari
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
- Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Hernández-Castro C, Agudelo-López SDP, Medina-Lozano AP, López-García D, García-Tuberquia LA, Botero-Garcés JH, Orozco-Peláez MC, Bolaños-Muñoz M, Bejarano-Villafañe DA, Carmena D. The burden of intestinal parasitic infections in Antioquia, Colombia: Impact in childhood growth development and nutritional status. Acta Trop 2024; 251:107119. [PMID: 38195005 DOI: 10.1016/j.actatropica.2024.107119] [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: 04/28/2023] [Revised: 09/04/2023] [Accepted: 01/06/2024] [Indexed: 01/11/2024]
Abstract
Gastrointestinal protist (GP) and soil-transmitted helminth (STH) infections cause significant morbidity among children in poor-resource settings of tropical and sub-tropical countries including Colombia. Few prospective transversal studies investigating how GP and STH infections affect growth development and nutritional status during childhood have been conducted in this country, none of them in the Antioquia Department. This microscopy-based study estimated the prevalence of GP and helminth (including STH) infections in faecal samples from schoolchildren (n = 384) collected during April-May 2019 in three municipalities of the Antioquia Department. Demographic, epidemiological, and household data were elicited through face-to-face interviews. Parasite detection was carried out by direct microscopic examination of both fresh smears and concentrated faecal material. Children (aged 6-15 years) also had their haemoglobin (Hb) levels, height and weight data collected, and BMI estimated. Data were analysed using bivariate and multivariate logistic regression analysis. Overall, 60.7 % (233/384) of schoolchildren were infected by at least one intestinal parasitic species. Among GPs, Blastocystis sp. was the most common species found (47.7 %, 95 % CI: 42.6-52.8), followed by G. duodenalis (15.9 %, 95 % CI: 12.4-19.9). Cryptosporidium spp. and Cyclospora cayetanensis were sporadically identified (0.3 %, 95 % CI: 0.1-1.4 each). Among helminths, the most prevalent species found were Trichuris trichiura (6.0 %, 95 % CI: 3.8-8.9) and Enterobius vermicularis (1.0 %, 95 % CI: 0.3-2.6). Hookworms, Ascaris lumbricoides, and Strongyloides stercoralis were found at prevalence rates <1 %. Underweight, overweigh, or obese schoolchildren had 1.2 times greater chance of being infected with intestinal parasites than their counterparts with a healthy weight (P-value: 0.015). Variables significantly associated with an increased likelihood of being infected by intestinal parasites include living in a household with unfinished flouring, not wearing shoes, being in close proximity to rodents, and having improper waste disposal. Relatively simple interventional measures directed towards the improvement of household conditions, access to sanitary toilets, and promoting shoe wearing can significantly reduce childhood infections by GP and helminths in the Antioquia Department.
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Affiliation(s)
- Carolina Hernández-Castro
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia; Parasitology Reference and Research Laboratory, National Centre for Microbiology, Madrid, Majadahonda 28220, Spain.
| | - Sonia Del Pilar Agudelo-López
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia
| | - Angélica Patricia Medina-Lozano
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia
| | - Diego López-García
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia
| | - Luis Alfonso García-Tuberquia
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia
| | - Jorge Humberto Botero-Garcés
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia
| | - María Cenelia Orozco-Peláez
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia
| | - Manuela Bolaños-Muñoz
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia
| | - Daniel Antonio Bejarano-Villafañe
- Parasitology Group, Faculty of Medicine, Academic Corporation for the Study of Tropical Pathologies, University of Antioquia, Medellín 050010, Colombia
| | - David Carmena
- Parasitology Reference and Research Laboratory, National Centre for Microbiology, Madrid, Majadahonda 28220, Spain; Center for Biomedical Research Network (CIBER) in Infectious Diseases, Health Institute Carlos III, Madrid 28008, Spain
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Sun J, Qin Z, Fu Y, Qin H, Sun M, Dong H, Chao L, Zhang L, Li J. Assessment of potential zoonotic transmission of Giardia duodenalis from dogs and cats. One Health 2023; 17:100651. [PMID: 38116451 PMCID: PMC10728314 DOI: 10.1016/j.onehlt.2023.100651] [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: 07/09/2023] [Accepted: 11/07/2023] [Indexed: 12/21/2023] Open
Abstract
Giardia duodenalis is one of the major causes of diarrhea among humans, especially in young children. Statistical analysis revealed that the pooled prevalence of G. duodenalis in humans, dogs, and cats was 9.72% (10,921/112383), 15.60% (7510/48140), and 14.53% (1125/7740), respectively. Unquestionably, the canine-specific assemblages C and D and the feline-specific assemblage F were the dominant genotypes in dogs and cats, respectively. Additionally, the prevalence of zoonotic G. duodenalis assemblages (A and B) in dogs and cats was 23.07% (875/3792) and 41.42% (169/408), respectively, implying that the potential transmission of G. duodenalis from dogs and cats to human infection cannot be ignored. The highest frequency of potentially zoonotic assemblages was found among working dogs (3.55%, 25/705) and the 1-5 age group (22.92%, 11/48). In summary, dogs and cats have a significant role in the zoonotic transmission of G. duodenalis due to their close contact with humans and the higher frequency presence of zoonotic assemblages. Further studies are necessary to explore the presence of G. duodenalis among humans and animals and in environmental samples. Researchers should adopt a one-health approach to gain a deeper understanding of G. duodenalis in dogs and cats and potential transmission routes to humans.
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Affiliation(s)
- Jingjing Sun
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou 450046, China
- Key Laboratory of Quality and Safety Control of Poultry Products, Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
| | - Ziyang Qin
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou 450046, China
- Key Laboratory of Quality and Safety Control of Poultry Products, Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
| | - Yin Fu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou 450046, China
- Key Laboratory of Quality and Safety Control of Poultry Products, Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
| | - Huikai Qin
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou 450046, China
- Key Laboratory of Quality and Safety Control of Poultry Products, Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
| | - Mengqing Sun
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou 450046, China
- Key Laboratory of Quality and Safety Control of Poultry Products, Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
| | - Haiju Dong
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Liqin Chao
- Medical School, Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China
| | - Longxian Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou 450046, China
- Key Laboratory of Quality and Safety Control of Poultry Products, Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
| | - Junqiang Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou 450046, China
- Key Laboratory of Quality and Safety Control of Poultry Products, Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
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Xu C, Tuo H, Wang W, Zhang Z, Yu F, Chuai L, Qi M, Jing B. Occurrence and genetic characteristics of Giardia duodenalis in donkeys in Xinjiang, China. Parasite 2023; 30:50. [PMID: 38015006 PMCID: PMC10683582 DOI: 10.1051/parasite/2023052] [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: 07/15/2023] [Accepted: 11/04/2023] [Indexed: 11/29/2023] Open
Abstract
Giardia duodenalis is a common enteric parasite in humans and animals. To examine the occurrence and genetic characteristics of Giardia in donkeys in Xinjiang, China, 758 fecal samples from donkeys were collected, and Giardia was screened via PCR at the SSU rRNA gene. A total of 17.0% (129/758) of samples tested positive for Giardia, with the infection rate in large-scale farm and domestic donkeys being 21.4% (124/580) and 2.8% (5/178), respectively; the infection rates in <1-year-old and ≥1-year-old donkeys were 19.3% (72/374) and 12.7% (41/323), respectively. Three Giardia assemblages were identified, with assemblage B (n = 102) as the prevalent assemblage, followed by assemblage A (n = 23) and assemblage E (n = 4). Of the 129 Giardia-positive isolates, 40, 34 and 59 sequences were obtained at the bg, gdh and tpi genes, respectively. Twenty-one isolates successfully allowed multilocus genotyping (MLG), with four novel assemblage A MLGs, named MLG-AI-1 (n = 1), MLG-AI-2 (n = 1), MLG-AI-3 (n = 1), and MLG-AI-4 (n = 1) and three novel assemblage B MLGs, named MLG-B1 (n = 1), MLG-B2 (n = 14), and MLG-B3 (n = 1). Moreover, two isolates formed two MLG-mixed sequences. The results suggest that donkeys are commonly infected with Giardia in Xinjiang, and there is genetic diversity and host adaptability among the isolates.
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Affiliation(s)
- Chunyan Xu
- College of Animal Science and Technology, Tarim University, Alar Xinjiang 843300 China
| | - Haixin Tuo
- College of Animal Science and Technology, Tarim University, Alar Xinjiang 843300 China
| | - Wen Wang
- College of Animal Science and Technology, Tarim University, Alar Xinjiang 843300 China
| | - Zhenjie Zhang
- College of Animal Science and Technology, Tarim University, Alar Xinjiang 843300 China
| | - Fuchang Yu
- College of Animal Science and Technology, Tarim University, Alar Xinjiang 843300 China
| | - Liwen Chuai
- College of Animal Science and Technology, Tarim University, Alar Xinjiang 843300 China
| | - Meng Qi
- College of Animal Science and Technology, Tarim University, Alar Xinjiang 843300 China
| | - Bo Jing
- College of Animal Science and Technology, Tarim University, Alar Xinjiang 843300 China
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Song YF, Chu MJ, Huang F, Liu Y, Lu HH, Li SA, Wang SY. First report of prevalence and assemblage analysis of Giardia duodenalis in pigs from Guangxi Zhuang Autonomous Region, southern China. Parasite 2023; 30:51. [PMID: 38015007 PMCID: PMC10683581 DOI: 10.1051/parasite/2023051] [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: 08/21/2023] [Accepted: 11/03/2023] [Indexed: 11/29/2023] Open
Abstract
Giardia duodenalis is a common intestinal protozoan that can cause diarrhea and intestinal disease in animals and in humans. However, the prevalence and assemblages of G. duodenalis in pigs from Guangxi Zhuang Autonomous Region have not been reported. In this study, a total of 724 fecal samples (201 from nursery pigs, 183 from piglets, 175 from breeding pigs, and 165 from fattening pigs) were obtained in four areas of the region (Nanning, Yulin, Hezhou, and Guigang). The gene of the small subunit ribosomal RNA (SSU rRNA) of G. duodenalis was amplified by nested PCR. The results show that the prevalence of G. duodenalis in pigs was 3.59% (26/724), of which 14 samples belonged to assemblage A (53.85%) and 12 samples belonged to assemblage E (46.15%). The infection rates of G. duodenalis in Hezhou, Yulin, Nanning, and Guigang were 0%, 0.7%, 10.8% and 1.1%, respectively (χ2 = 45.616, p < 0.01); whereas 5.1% of breeding pigs, 6.0% of piglets, 2.4% of fattening pigs, and 1.0% of nursery pigs were infected with G. duodenalis (χ2 = 8.874, p < 0.05). The SSU rRNA-positive samples were amplified by PCR based on the β-giardin (bg), glutamate dehydrogenase (gdh), and triphosphate isomerase (tpi) genes. Ten, eight and seven positive samples were detected, respectively. Based on phylogenetic analysis of the three genetic loci sequences, a multilocus genotyping A1 was found. The findings of this study provide basic data for the development of prevention and control of G. duodenalis infections in pigs and humans in the Guangxi Zhuang Autonomous Region.
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Affiliation(s)
- Ya-Fei Song
- Guangxi Vocational University of Agriculture Nanning 530007 China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences (College of Bee Science), Fujian Agriculture and Forestry University Fuzhou 350002 China
| | - Meng-Jie Chu
- Guangxi Vocational University of Agriculture Nanning 530007 China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences (College of Bee Science), Fujian Agriculture and Forestry University Fuzhou 350002 China
| | - Fei Huang
- Guangxi Vocational University of Agriculture Nanning 530007 China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences (College of Bee Science), Fujian Agriculture and Forestry University Fuzhou 350002 China
| | - Yang Liu
- Guangxi Vocational University of Agriculture Nanning 530007 China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences (College of Bee Science), Fujian Agriculture and Forestry University Fuzhou 350002 China
| | - Hui-Hong Lu
- Guangxi Vocational University of Agriculture Nanning 530007 China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences (College of Bee Science), Fujian Agriculture and Forestry University Fuzhou 350002 China
| | - Si-Ang Li
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences (College of Bee Science), Fujian Agriculture and Forestry University Fuzhou 350002 China
| | - Shu-Yan Wang
- Guangxi Vocational University of Agriculture Nanning 530007 China
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Tawana M, Onyiche TE, Ramatla T, Thekisoe O. A 'One Health' perspective of Africa-wide distribution and prevalence of Giardia species in humans, animals and waterbodies: a systematic review and meta-analysis. Parasitology 2023; 150:769-780. [PMID: 37246558 PMCID: PMC10478065 DOI: 10.1017/s0031182023000513] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/03/2023] [Accepted: 05/09/2023] [Indexed: 05/30/2023]
Abstract
Giardiasis, caused by Giardia duodenalis, is a leading cause of diarrhoea in resource-poor countries. To gain a better insight into the epidemiology of Giardia in Africa, we undertook a robust study to comprehend the distribution and prevalence of Giardia infection in humans, animals and their dispersal in the environment. Our protocol was registered with PROSPERO (registration number CRD42022317653). Deep literature search from 5 electronic databases, namely, AJOL, Google scholar, PubMed, ScienceDirect and Springer Link was performed using relevant keywords. Meta-analysis was performed using a random-effects model and heterogeneity among studies was evaluated using Cochran's Q and the I2-statistic. More than 500 eligible studies published from 1 January 1980 until 22 March 2022 were retrieved. In humans, exactly 48 124 Giardia spp. infection cases were registered from the 494 014 stool samples examined resulting in a pooled prevalence estimate (PPE) of 8.8% using microscopy. Whereas copro-antigen tests and molecular diagnostic methods generated PPE of 14.3 and 19.5%, respectively, with HIV+ subjects and those with diarrhoeatic stool having infection rates of 5.0 and 12.3%, respectively. The PPE of Giardia spp. infection in animals using molecular methods was 15.6%, which was most prevalent in pigs (25.2%) with Nigeria registering the highest prevalence at 20.1%. The PPE of Giardia spp. contamination from waterbodies was 11.9% from a total of 7950 samples which were detected using microscopy, with Tunisia documenting the highest infection rate of 37.3%. This meta-analysis highlights the necessity of ‘One Health’ approach for consolidated epidemiological studies and control of giardiasis in the African continent.
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Affiliation(s)
- Mpho Tawana
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2531, South Africa
| | - ThankGod E. Onyiche
- Department of Veterinary Parasitology and Entomology, University of Maiduguri, Maiduguri, Nigeria
| | - Tsepo Ramatla
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2531, South Africa
| | - Oriel Thekisoe
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2531, South Africa
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