1
|
Hasan MF, Harun AB, Hossain D, Bristi SZT, Uddin AHMM, Karim MR. Toxoplasmosis in animals and humans: a neglected zoonotic disease in Bangladesh. J Parasit Dis 2024; 48:189-200. [PMID: 38840887 PMCID: PMC11147975 DOI: 10.1007/s12639-024-01664-4] [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: 08/16/2023] [Accepted: 03/21/2024] [Indexed: 06/07/2024] Open
Abstract
Toxoplasmosis, caused by Toxoplasma gondii, is a zoonotic disease that affects a wide range of warm-blooded animals, including humans. The parasite undergoes both sexual and asexual reproduction in intermediate hosts (humans and animals) and definitive hosts (cats). Transmission in humans occurs through consuming oocyst-contaminated water, fruits, vegetables, and raw or undercooked meats. In Bangladesh, several factors contribute to an increased risk of contracting toxoplasmosis. The parasite is reported to cause diseases among livestock such as goats and sheep in this country, and it has also been associated with some human illnesses. Toxoplasmosis prevalence varies significantly worldwide, with developing countries like Bangladesh experiencing higher rates. Diagnostic methods include both conventional non-DNA-based tests and molecular detection techniques, while treatment options involve using antiparasitic drugs like sulfadiazine and pyrimethamine. To control toxoplasmosis, essential steps include improving sanitation, promoting safe food handling, and educating the public about risks related to cat ownership and undercooked meat consumption. Implementing prenatal screening and treatment is also important. With the growing popularity of pet ownership in urban areas, it becomes essential to emphasize the veterinary and public health significance of toxoplasmosis in Bangladesh. This article comprehensively reviews various aspects of toxoplasmosis, with a specific focus on the situation in Bangladesh.
Collapse
Affiliation(s)
- Md. Farhan Hasan
- Department of Medicine, Faculty of Veterinary Medicine and Animal Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 Bangladesh
| | - Anas Bin Harun
- Department of Medicine, Faculty of Veterinary Medicine and Animal Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 Bangladesh
| | - Delower Hossain
- Department of Medicine and Public Health, Faculty of Animal Science and Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka, 1207 Bangladesh
| | - Sabiha Zarin Tasnim Bristi
- Department of Medicine and Surgery, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram, 4225 Bangladesh
| | - A. H. M. Musleh Uddin
- Department of Surgery and Theriogenology, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet, 3100 Bangladesh
| | - Md Robiul Karim
- Department of Medicine, Faculty of Veterinary Medicine and Animal Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 Bangladesh
| |
Collapse
|
2
|
Yang Z, Yuan H, Nie L, Wen Q, Li H, Yang L, Song Y, Luo X, Zhang XX, Yuan ZG. Deciphering the epidemiological dynamics: Toxoplasma gondii seroprevalence in mainland China's food animals, 2010-2023. Front Cell Infect Microbiol 2024; 14:1381537. [PMID: 38633748 PMCID: PMC11021580 DOI: 10.3389/fcimb.2024.1381537] [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: 02/03/2024] [Accepted: 03/20/2024] [Indexed: 04/19/2024] Open
Abstract
Background Toxoplasma gondii (T. gondii) is a significant protozoan pathogen among food animals. Despite the threat to public health by T. gondii infections, there's limited understanding of its seroprevalence and trends in food animals across mainland China. This study aimed to estimate the seroprevalence of T. gondii infections among swine, sheep, goats, chickens, and cattle in mainland China from 2010 to 2023. Methods We searched cross-sectional studies published between 2010 and 2023 that reported the prevalence of T. gondii in food animals from databases including PubMed, Embase, Web of Science, China Biology Medicine Disc (CBM), China National Knowledge Infrastructure (CNKI), Wanfang data, and the China Science and Technology Journal Database (CQVIP). We performed subgroup analyses to explore the impact of different factors on the seroprevalence of T. gondii. Pooled estimates of T. gondii seroprevalence were calculated with a random-effects model. Results An analysis of 184 studies involving 211985 animals revealed a T. gondii overall seroprevalence of 15.3% (95% CI: 13.1-17.8). Although the seroprevalence of food animals across mainland China was relatively stable from 2010 to 2023, notable variations were observed across different animal types and regions (P < 0.01), along with changes in geographical distribution. Sample type, detection method, animal age, and history of abortion were identified as key risk factors for T. gondii seroprevalence. Conclusion The study conducted a meta-analysis on the seroprevalence of T. gondii in mainland China's Food Animals from 2010 to 2023, and identified key risk factors. These findings advance our understanding of T. gondii infection dynamics, offering critical insights for developing control strategies and guiding public health policies.
Collapse
Affiliation(s)
- Zipeng Yang
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Hao Yuan
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Linchong Nie
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Qingyuan Wen
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Haoxin Li
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Liulu Yang
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yining Song
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Xun Luo
- Kerry Rehabilitation Medicine Research Institute, Shenzhen, China
| | - Xiu-Xiang Zhang
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - Zi-Guo Yuan
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, China
| |
Collapse
|
3
|
Li XM, Wang XY, Wei YJ, Jiang J, Cai Y, Zhang XX, Yang X, Cao H. Meta-analysis of the global prevalence and risk factors of Enterocytozoon bieneusi infection in pigs from 1999 to 2021. Prev Vet Med 2024; 225:106159. [PMID: 38422983 DOI: 10.1016/j.prevetmed.2024.106159] [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: 04/16/2023] [Revised: 01/21/2024] [Accepted: 02/19/2024] [Indexed: 03/02/2024]
Abstract
Enterocytozoon bieneusi (E. bieneusi), which is one of the most common microsporidia, has been identified as an important obligate intracellular pathogen that commonly colonizes in a variety of animal species and humans worldwide, including humans. In this study, the statistical analyses of E. bieneusi infection and prevalence were performed to clarify the relationship between different genotypes in different countries. The databases Chinese National Knowledge Infrastructure (CNKI), VIP Chinese Journal Database, Wanfang Data, PubMed, Web of Science and ScienceDirect were used for data collection. The research data were subjected to subgroup, univariate regression, and correlation, to reveal factors related to the high prevalence of E. bieneusi. A total of, 34 of the 498 articles published before April 2022 met the inclusion criteria. The global prevalence of E. bieneusi in pigs was 37.69% (5175/12672). The prevalence of E. bieneusi in nursery pigs was 58.87% (588/946). In developing countries and Asia, the highest prevalence of E. bieneusi in pigs were 37.62% (4752/11645) and 40.14% (4715/11345), respectively. Moreover, humans and pigs have been found to be infected with the same genotype of E. bieneusi in some cases, as evidenced by the consolidation of genotype information. The results showed that pigs are susceptible to E. bieneusi during the nursery period. The prevalence of E. bieneusi is high in developing countries, and its genotype prevalence varies in each country. Thus, it is essential to strengthen the health inspection of vulnerable groups and customs quarantine inspection.
Collapse
Affiliation(s)
- Xiao-Man Li
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Xiang-Yu Wang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Yong-Jie Wei
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Jing Jiang
- College of Life Sciences, Changchun Sci-Tech University, Shuangyang, Jilin Province 130600, China.
| | - Yanan Cai
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, China
| | - Xiao-Xuan Zhang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Xing Yang
- Department of Medical Microbiology and Immunology, School of Basic Medicine, Dali, Yunnan Province 671000, China.
| | - Hongwei Cao
- School of Pharmacy, Yancheng Teachers University, Yancheng, Jiangsu Province 224002, China.
| |
Collapse
|
4
|
Moudgil P, Pandita S, Kumar R, Khasa V, Dash SS, Bangar YC, Jindal N. Seroprevalence and risk factors associated with Toxoplasma gondii in pigs in Haryana, India. Zoonoses Public Health 2024; 71:136-143. [PMID: 37946694 DOI: 10.1111/zph.13091] [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: 05/18/2023] [Revised: 10/06/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023]
Abstract
AIMS Toxoplasmosis is one of the most common food-borne parasitic zoonosis, caused by Toxoplasma gondii, an obligate intracellular protozoan parasite. A cross-sectional study was carried out to determine the seroprevalence of T. gondii and associated risk factors in pigs in Haryana, India. METHODS AND RESULTS Serum samples were collected from 429 pigs from three agroclimatic zones (I-III) of Haryana and analysed for the presence of antibodies against T. gondii using a commercial indirect enzyme-linked immunosorbent assay (ELISA). Anti-T. gondii antibodies were detected in 106 animals (24.7%), with the highest seropositivity in zone II (31.3%) followed by zone III (24.4%) and zone I (18.3%). Risk factors associated with higher seropositivity in pigs were farm size (higher in large-sized farms), age (higher in pigs >1 year of age), sex (higher in males), type of feeding (higher in combination of homemade and hotel waste) and housing (higher in free-ranging pigs). CONCLUSIONS The findings of the study testify to the exposure of pigs (of all agro-climatic zones) to T. gondii. Hence, the observations are of significant medical and veterinary importance for devising and implementing control measures to check the dissemination of toxoplasmosis to pigs and eventually to humans.
Collapse
Affiliation(s)
- Pallavi Moudgil
- Department of Veterinary Public Health and Epidemiology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Sakshi Pandita
- Department of Veterinary Public Health and Epidemiology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Ramesh Kumar
- Department of Veterinary Public Health and Epidemiology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Vipin Khasa
- State Disease Diagnostic Laboratory, Department of Animal Husbandry and Dairying, Sonipat, Haryana, India
| | - Spandan Shashwat Dash
- Department of Animal Genetics and Breeding, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Yogesh C Bangar
- Department of Animal Genetics and Breeding, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Naresh Jindal
- Department of Veterinary Public Health and Epidemiology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| |
Collapse
|
5
|
Milton AAP, Das S, Ghatak S, Srinivas K, Priya GB, Angappan M, Prasad MCB, Wahlang L, Sailo B, Lalhruaipuii L, Singh M, Garam GB, Sen A. Seroepidemological investigation of Toxoplasma gondii and Trichinella spp. in pigs reared by tribal communities and small-holder livestock farmers in Northeastern India. PLoS One 2024; 19:e0298357. [PMID: 38377066 PMCID: PMC10878514 DOI: 10.1371/journal.pone.0298357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/22/2024] [Indexed: 02/22/2024] Open
Abstract
Toxoplasma gondii and Trichinella spp. are critical tissue-dwelling foodborne zoonotic parasites associated with pork consumption and pig rearing. Despite being a major pig-rearing region in the country, Northeastern India has not undergone any investigation regarding the presence of T. gondii and Trichinella spp. in pigs. Therefore, this study aims to determine the seroprevalence of T. gondii and Trichinella spp. and identify associated risk factors in pigs reared by tribal communities and small-holder livestock farmers in the northeastern region of India. In a cross-sectional serological survey, 400 pigs from 400 households across five northeastern states of India underwent testing for the seroprevalence of porcine toxoplasmosis and trichinellosis. Serum samples (80 from each state) were analyzed using commercially available ELISA assays. Data on backyard farm characteristics and various management aspects were collected, and risk factors linked with prevalence were analyzed through univariate and multivariate logistic regression analysis. The findings revealed that the apparent and true prevalence of anti-T. gondii antibodies were 45% (40.12-49.88, 95% CI) and 45.7% (40.7-50.69, 95% CI), respectively. As for anti- Trichinella antibodies, both the apparent and true prevalence were 0.75% (-0.1-1.6, 95% CI). The univariate and multivariate analyses indicated that age above 24 months (OR 7.20, 95% CI 2.45-23.71), exposure to cats (OR = 5.87, 95% CI 2.55-14.05), and farms operating for breeding purposes (OR = 5.60, 95% CI 3.01-11.04) were significant risk factors associated with the seroprevalence of T. gondii. This study marks the initial documentation of the seroprevalence of T. gondii and Trichinella spp. in pigs reared by tribal communities in Northeastern India. The results emphasize the significance of these parasites as foodborne zoonotic threats in the region, potentially posing substantial public health risks, especially within tribal and rural communities. The insights derived from this research could be valuable in formulating targeted preventive and control strategies against T. gondii and Trichinella spp. in pigs, not only in this region but also in areas with similar rearing practices.
Collapse
Affiliation(s)
- A. A. P. Milton
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Samir Das
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - S. Ghatak
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - K. Srinivas
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - G. Bhuvana Priya
- College of Agriculture, Central Agricultural University (Imphal), Kyrdemkulai, Meghalaya, India
| | - M. Angappan
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - M. C. B. Prasad
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - L. Wahlang
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Blessa Sailo
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | | | - Mahak Singh
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - G. B. Garam
- Department of Animal Husbandry, Veterinary & Dairy Development, Nirjuli, Arunachal Pradesh, India
| | - A. Sen
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| |
Collapse
|
6
|
Roy M, Mishra V, Mitra P, Umbardand Y, Sapate V, Khan W, Deshmukh AS. Serological and Molecular Detection of Toxoplasma gondii in Domestic Pigs Intended for Human Consumption and Potential Occupational Hazard to Pig Farmers in India. Foodborne Pathog Dis 2024; 21:99-108. [PMID: 37943604 DOI: 10.1089/fpd.2023.0073] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023] Open
Abstract
Toxoplasma gondii, an important food-borne zoonotic parasite, poses a worldwide public health hazard. Domestic pigs are considered one of the main intermediate hosts in the zoonotic transmission of T. gondii. To date, seroepidemiological information on T. gondii in domestic pigs in India is very scarce, and there are no reports of occupational hazards to pig farmers in this country. Here, we aimed at estimating the occurrence of T. gondii (antibodies and parasite DNA) in slaughtered pigs and pig farmers in Central India. Seroprevalence was determined in 410 serum samples from slaughtered pigs and 103 sera from pig farmers using an in-house prepared antigen-based modified agglutination test (MAT), enzyme-linked immunosorbent assay (ELISA), and indirect-fluorescent antibody test (IFAT). Anti-T. gondii IgG antibodies were detected in 200 pigs (up to 48.8%, confidence interval [95% CI]: 40.4-52.2) and 44 pig farmers (up to 42.7%, 95% CI: 35.6-47.3) using MAT, ELISA, and IFAT. Inter-rater agreement showed an excellent agreement (kappa κ = 0.9) among the different serological tests suggesting similar detection potential of these tests. Recently acquired infections in all seropositive subjects were determined using IgG avidity testing and polymerase chain reaction (PCR). IgG avidity showed that 20 (10.3%) of slaughtered pigs and 8 (19.5%) pig farmers had a recently acquired infection. PCR for B1 and 529 repeats was performed in the heart tissues of slaughtered pigs and the blood cells of pig farmers. T. gondii DNA was detected in 14 (7.2%) slaughtered pigs and 5 (12.2%) pig farmers. Univariate analysis revealed that adult animals (>1 year), cats and rodents on the farm, and outdoor access are common factors (p ≤ 0.05) associated with T. gondii infection in pigs. Our results indicate that T. gondii is widely distributed in slaughtered pigs and pig farmers at risk of infection, highlighting a potential zoonotic transmission and health risk to consumers.
Collapse
Affiliation(s)
- Megha Roy
- Molecular Parasitology Laboratory, DBT-National Institute of Animal Biotechnology, Hyderabad, India
| | - Veena Mishra
- Molecular Parasitology Laboratory, DBT-National Institute of Animal Biotechnology, Hyderabad, India
| | - Pallabi Mitra
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Yeshwant Umbardand
- Department of Veterinary Public Health & Epidemiology, Nagpur Veterinary College, Maharashtra Animal & Fishery Sciences University, Nagpur, India
| | - Vaishnavi Sapate
- Department of Veterinary Public Health & Epidemiology, Nagpur Veterinary College, Maharashtra Animal & Fishery Sciences University, Nagpur, India
| | - Waqar Khan
- Department of Veterinary Public Health & Epidemiology, Nagpur Veterinary College, Maharashtra Animal & Fishery Sciences University, Nagpur, India
| | - Abhijit S Deshmukh
- Molecular Parasitology Laboratory, DBT-National Institute of Animal Biotechnology, Hyderabad, India
| |
Collapse
|
7
|
Fereig RM, El-Alfy ES, Abdelbaky HH, Abdel-Hamid NH, Mazeed AM, Menshawy AMS, Kelany MA, El-Diasty M, Alawfi BS, Frey CF. Seroprevalence of Toxoplasma gondii, Neospora caninum and Trichinella spp. in Pigs from Cairo, Egypt. Vet Sci 2023; 10:675. [PMID: 38133226 PMCID: PMC10747553 DOI: 10.3390/vetsci10120675] [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: 10/18/2023] [Revised: 11/12/2023] [Accepted: 11/25/2023] [Indexed: 12/23/2023] Open
Abstract
Pork production is a niche economy in Egypt, and pigs are typically raised as backyard animals with no sanitary control, potentially exposing them to various pathogens. Commercially available ELISAs were used to detect specific antibodies to the food-borne zoonotic parasites Toxoplasma gondii and Trichinella spp., as well as to Neospora caninum, in serum samples of pigs slaughtered at Egypt's only licensed pig abattoir, the El-Bassatin abattoir in Cairo. Among the tested sera (n = 332), seroreactivity for T. gondii was 45.8% (95% confidence interval: 40.4-51.3), N. caninum was 28.0% (95% CI: 23.3-33.2), and Trichinella spp. was 1.2% (95% CI: 0.4-3.3). Mixed infection was only detected for T. gondii and N. caninum (18.7%; 95% CI: 14.7-23.4). The seroprevalence of T. gondii was significantly higher (p = 0.0003) in animals collected from southern Cairo (15 May city slum) than in eastern Cairo (Ezbet El Nakhl slum). Seroprevalence for N. caninum was higher in western (Manshiyat Naser slum; p = 0.0003) and southern Cairo (15 May city slum; p = 0.0003) than in that of eastern Cairo (Ezbet El Nakhl slum; p = 0.0003). Moreover, female pigs exhibited a higher rate of N. caninum antibodies than male ones (p < 0.0001). This study provides the first seroprevalence data for N. caninum in pigs in Egypt, and updates the prevalence of the zoonotic parasites Trichinella spp. and T. gondii.
Collapse
Affiliation(s)
- Ragab M. Fereig
- Division of Internal Medicine, Department of Animal Medicine, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - El-Sayed El-Alfy
- Department of Parasitology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt;
| | - Hanan H. Abdelbaky
- Doctor of Veterinary Sciences, Veterinary Clinic, Veterinary Directorate, Qena 83523, Egypt;
| | - Nour H. Abdel-Hamid
- Brucellosis Research Department, Agricultural Research Center, Animal Health Research Institute, Cairo 12618, Egypt;
| | - Amira M. Mazeed
- Department of Infectious Disease, Faculty of Veterinary Medicine, Arish University, Arish City 45511, North Sinai, Egypt;
| | - Ahmed M. S. Menshawy
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt;
| | - Mohamed A. Kelany
- Department of Microbiology, The Central Laboratory of Residual Analysis of Pesticides and Heavy Metals in Foods, Agricultural Research Center, Dokki, Giza 12618, Egypt;
| | - Mohamed El-Diasty
- Agricultural Research Center (ARC), Animal Health Research Institute-Mansoura Provincial Lab. (AHRI-Mansoura), Giza 12618, Egypt;
| | - Bader S. Alawfi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taibah University, Madinah 42353, Saudi Arabia;
| | - Caroline F. Frey
- Institute of Parasitology, Department of Infectious Diseases and Pathobiology, Vetsuisse-Faculty, University of Bern, Länggassstrasse 122, CH-3012 Bern, Switzerland
| |
Collapse
|
8
|
Gao Y, Shen Y, Fan J, Ding H, Zheng B, Yu H, Huang S, Kong Q, Lv H, Zhuo X, Lu S. Establishment and application of an iELISA detection method for measuring apical membrane antigen 1 (AMA1) antibodies of Toxoplasma gondii in cats. BMC Vet Res 2023; 19:229. [PMID: 37924072 PMCID: PMC10623812 DOI: 10.1186/s12917-023-03775-1] [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: 11/21/2022] [Accepted: 10/05/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Diseases caused by Toxoplasma gondii (T. gondii) have introduced serious threats to public health. There is an urgent need to develop a rapid detection method for T. gondii infection in cats, which are definitive hosts. Recombinant apical membrane antigen 1 (rAMA1) was produced in a prokaryotic expression system and used as the detection antigen. The aim of this study was to evaluate and optimize a reliable indirect enzyme-linked immunosorbent assay (iELISA) method based on rAMA1 for the detection of antibodies against T. gondii in cats. RESULTS The rAMA1-iELISA method was developed and optimized by the chessboard titration method. There were no cross-reactions between T. gondii-positive cat serum and positive serum for other pathogens, indicating that rAMA1-iELISA could only detect T. gondii in most cases. The lowest detection limit of rAMA1-iELISA was 1:3200 (dilution of positive serum), and the CV of repeated tests within batches and between batches were confirmed to be less than 10%. The results of 247 cat serum samples detected by rAMA1-iELISA (kappa value = 0.622, p < 0.001) were in substantial agreement with commercial ELISA. The ROC curve analysis revealed the higher overall check accuracy of rAMA1-iELISA (sensitivity = 91.7%, specificity = 93.6%, AUC = 0.956, 95% CI 0.905 to 1.000) than GRA7-based iELISA (sensitivity = 91.7%, specificity = 85.5%, AUC = 0.936, 95% CI 0.892 to 0.980). Moreover, the positive rate of rAMA1-iELISA (6.5%, 16/247) was higher than that of GRA7-based iELISA (3.6%, 9/247) and that of commercial ELISA kit (4.9%, 12/247). CONCLUSION The iELISA method with good specificity, sensitivity, and reproducibility was established and can be used for large-scale detection of T. gondii infection in clinical cat samples.
Collapse
Affiliation(s)
- Yafan Gao
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China
- Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
| | - Yu Shen
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China
- Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
| | - Jiyuan Fan
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China
- Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
| | - Haojie Ding
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China
- Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
| | - Bin Zheng
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China
- Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
| | - Haijie Yu
- Jiaxing Vocational & Technical College, Jiaxing, 314036, China
| | - Siyang Huang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Qingming Kong
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China
- Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
| | - Hangjun Lv
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China
| | - Xunhui Zhuo
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China.
- Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China.
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China.
| | - Shaohong Lu
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, 310013, China.
- Engineering Research Center of Novel Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China.
- Key Laboratory of Bio-Tech Vaccine of Zhejiang Province, Hangzhou Medical College, Hangzhou, China.
| |
Collapse
|
9
|
Symeonidou I, Sioutas G, Lazou T, Gelasakis AI, Papadopoulos E. A Review of Toxoplasma gondii in Animals in Greece: A FoodBorne Pathogen of Public Health Importance. Animals (Basel) 2023; 13:2530. [PMID: 37570337 PMCID: PMC10416908 DOI: 10.3390/ani13152530] [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: 07/12/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Toxoplasma gondii is a zoonotic protozoon with a complex life cycle and the second most important foodborne pathogen in Europe. Surveillance of toxoplasmosis is based on national considerations since there are no mandatory controls along the food chain in the European Union, and underreporting of meat is still a problem in many countries like Greece. The current review provides an overview of T. gondii prevalence, associated risk factors, and surveillance in animals in Greece, focusing on the transmission role of meat and highlighting the control measures that should be adopted by consumers. Sows, wild boars, hares, equines, and cats had lower, while sheep and goats generally had higher seroprevalence than their respective pooled European and global values. Seroprevalence in chickens was similar between Greece and Europe, while there was high variation in cattle studies, with no data regarding dairy products. Though a comprehensive meat safety assurance system is the most effective approach to control the principal biological hazards associated with meat, such as T. gondii, the prerequisite risk categorisation of farms and abattoirs based on EFSA's proposed harmonised epidemiological indicators has not materialised as yet in Greece. Therefore, comprehensive control strategies are still required to ensure food safety and safeguard public health.
Collapse
Affiliation(s)
- Isaia Symeonidou
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.S.); (G.S.)
| | - Georgios Sioutas
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.S.); (G.S.)
| | - Thomai Lazou
- Laboratory of Hygiene of Foods of Animal Origin—Veterinary Public Health, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Athanasios I. Gelasakis
- Laboratory of Anatomy and Physiology of Farm Animals, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 11855 Athens, Greece;
| | - Elias Papadopoulos
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.S.); (G.S.)
| |
Collapse
|
10
|
Wang X, Cheng M, Yang S, Xing C, Li Q, Zhu Y, Ji Y, Du Y. CRISPR/Cas12a combined with RPA for detection of T. gondii in mouse whole blood. Parasit Vectors 2023; 16:256. [PMID: 37518013 PMCID: PMC10387196 DOI: 10.1186/s13071-023-05868-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND Toxoplasma gondii is an opportunistic protozoan that is ubiquitous in humans and animals. It can invade any human organ and cause severe diseases, including toxoplasma ophthalmopathy, meningoencephalitis, and liver necrosis. Porcine toxoplasmosis is prevalent in China. CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) and Cas (CRISPR-Associated Protein) systems are widely used for gene editing and pathogen detection. CRISPR-based diagnostics are molecular assays that have been developed to detect parasites with high sensitivity and specificity. METHODS This study aimed to establish a combined CRISPR/Cas12a and RPA rapid detection method for T. gondii by targeting the B1 gene and 529 bp repeat element (529 RE). The detection results could be visualized by the fluorescence or lateral flow strips (LFS). The sensitivity and specificity of the method were evaluated, and T. gondii-infected mouse blood was used for detection. RESULTS The results indicated that the established method for T. gondii detection was satisfactory, with a detection limit of 1.5 cp/μl for the two loci. Moreover, the B1 gene could detect 1 tachyzoite per reaction, and the 529 RE could detect 0.1 tachyzoite per reaction, consistently with the highly sensitive nested polymerase chain reaction (PCR) results. The method was suitable for strains, including RH, and did not cross-react with other protozoa DNA with similar habits. The T. gondii-infected mouse blood samples were all positive for T. gondii at 1, 3, and 5 days post infection (dpi). CONCLUSIONS This study established a rapid, sensitive, and time-saving DNA detection method for T. gondii that has the potential to be an alternative tool for T. gondii detection in the field.
Collapse
Affiliation(s)
- Xiaofeng Wang
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoonoses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Miao Cheng
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoonoses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Shuqi Yang
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoonoses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Chen Xing
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoonoses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Qian Li
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoonoses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Yating Zhu
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoonoses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Yongsheng Ji
- School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Yinan Du
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoonoses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.
| |
Collapse
|
11
|
Leong SD, Hassan L, Sharma RSK, Toung OP, Musa HI. Prevalence and Haplotypes of Toxoplasma gondii in Native Village Chickens and Pigs in Peninsular Malaysia. Vet Sci 2023; 10:vetsci10050334. [PMID: 37235417 DOI: 10.3390/vetsci10050334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/11/2023] [Accepted: 04/19/2023] [Indexed: 05/28/2023] Open
Abstract
Toxoplasma gondii is an important zoonotic foodborne parasite capable of infecting almost all warm-blooded animal species worldwide. Toxoplasmosis is usually acquired via ingestion of undercooked infected animal tissues resulting in life-threatening consequences for unborn foetus and immunocompromised individuals. A cross-sectional study was carried out to determine the prevalence of T. gondii infection, its associated risk factors in farms, and haplotypes isolated from the native village chicken and pig populations in Peninsular Malaysia. The seroprevalence of T. gondii in village chickens at the animal level was low at 7.6% (95% CI: 4.60-11.60), while at the farm level, it was 52.0% (95% CI: 31.30-72.20). For pigs, the animal-level seroprevalence of T. gondii was 3.0% (95% CI: 1.60-5.10), while the farm-level, it was 31.6% (95% CI: 12.60-56.60). The PCR-based DNA detection on meat samples from chickens (n = 250) and pork (n = 121) detected 14.0% (95% CI: 9.95-18.9) and 5.8% (95% CI: 2.4-11.6) positive, respectively. Six unique T. gondii haplotypes were isolated from the tissue samples. Multivariable logistic regression analysis showed that feeding the chickens farm-produced feeds and allowing wild animals access to pig farms were significant determinants for farm-level seropositivity. Providing hygienic and good quality feeds to chickens and increasing biosecurity in pig farms through prevention of access by wildlife may reduce the risk of transmission of T. gondii infection in the local chickens and pig farms.
Collapse
Affiliation(s)
- Sabrina Danial Leong
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 44300 Serdang, Malaysia
| | - Latiffah Hassan
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 44300 Serdang, Malaysia
| | | | - Ooi Peck Toung
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 44300 Serdang, Malaysia
| | - Hassan Ismail Musa
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 44300 Serdang, Malaysia
- Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069 Maiduguri, Nigeria
| |
Collapse
|
12
|
Zhang J, Yang Z, Ma H, Tian X, Li J, Zhang Z, Yang L, Feng M, Mei X, Zhang Z, Li X, Wang S. Recombinant Toxoplasma gondii Calreticulin protein provides partial protection against acute and chronic toxoplasmosis. Acta Trop 2023; 241:106883. [PMID: 36870430 DOI: 10.1016/j.actatropica.2023.106883] [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: 12/26/2022] [Revised: 02/04/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Toxoplasma gondii, a highly prevalent apicomplexan pathogen, can cause serious or even fatal toxoplasmosis in both animals and humans. Immunoprophylaxis is considered a promising strategy for controlling this disease. Calreticulin (CRT) is known as a pleiotropic protein, which is critical for calcium storage and phagocytosis of apoptotic cells. Our study examined the protective effects of recombinant T. gondii Calreticulin (rTgCRT) as a recombinant subunit vaccine against the T. gondii challenge in mice. Here, rTgCRT was successfully expressed in vitro using prokaryptic expression system. Polyclonal antibody (pAb) has been prepared by immunizing Sprague Dawley rats with rTgCRT. Western blotting showed that rTgCRT and natural TgCRT protein were recognized by serum of T. gondii infected mice and rTgCRT pAb, respectively. T lymphocyte subsets and antibody response were monitored using flow cytometry and enzyme-linked immunosorbent assay (ELISA). The results showed that ISA 201 rTgCRT could stimulate lymphocyte proliferation and induce high levels of total and subclasses of IgG. After the RH strain challenge, a longer survival period was given by the ISA 201 rTgCRT vaccine compared to the control groups; after infection with the PRU strain, we observed a 100% survival rate and a significant reduction in cysts load and size. In the neutralization test, high concentrations of rat-rTgCRT pAb provided 100% protection, while in the passive immunization trial, only weak protection was observed after RH challenge, indicating that rTgCRT pAb needs further modification to improve its activity in vivo. Taken together, these data confirmed that rTgCRT can trigger strong cellular and humoral immune responses against acute and chronic toxoplasmosis.
Collapse
Affiliation(s)
- Jing Zhang
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Zhenke Yang
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Hangbin Ma
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Xiaowei Tian
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Jiani Li
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Zihang Zhang
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Longxin Yang
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Mengchuang Feng
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Xuefang Mei
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Zhenchao Zhang
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| | - Xingrui Li
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China.
| | - Shuai Wang
- Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
| |
Collapse
|
13
|
Castillo-Cuenca JC, Almería S, Calero-Bernal R, Fernández-Escobar M, Fraga J, Entrena-García A, Arias PC, Martínez-Moreno Á, García-Bocanegra I. Seroprevalence and genetic characterization of Toxoplasma gondii in domestic pigs intended for human consumption in Cuba. Zoonoses Public Health 2023; 70:125-133. [PMID: 36416370 PMCID: PMC10100425 DOI: 10.1111/zph.13010] [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: 06/30/2022] [Revised: 10/23/2022] [Accepted: 11/07/2022] [Indexed: 11/24/2022]
Abstract
Domestic pigs are considered as one of the main intermediate hosts in the zoonotic transmission of Toxoplasma gondii in many countries. Serological and molecular studies are warranted to better understand the epidemiology and transmission patterns of this parasite worldwide. To date, seroepidemiological information on T. gondii in domestic pigs in Cuba is very scarce and there are no reports of T. gondii genotypes circulating in this country. Here, we aimed to estimate the seroprevalence of T. gondii and provide genetic characterization of the strains circulating in slaughtered pigs intended for human consumption in Central Cuba. Seroprevalence was determined in 450 serum samples from slaughtered pigs in Villa Clara province using ELISA. Anti-Toxoplasma gondii IgG antibodies were detected in 100 animals (22.2%, 95% CI: 18.5-26.2). Conventional PCR of the 529-bp marker of T. gondii was performed in hearts and diaphragm tissues of all ELISA-seropositive pigs. Toxoplasma gondii DNA was detected in four animals. Further genetic characterization of the positive DNA samples was performed by multilocus PCR-RFLP and PCR-sequencing typing tools. Molecular analysis revealed four different genetic profiles that were combinations of type I, II, III and u-1 alleles, suggesting the circulation of non-clonal genotypes of T. gondii in domestic pigs in Cuba. Our results indicate that T. gondii is widely distributed in slaughtered pigs in this country, which might have important implications for public health. To the best of our knowledge, this is the first report on genetic characterization of T. gondii in Cuba. Although preliminary, the results suggest a high genetic diversity of T. gondii in the study region. Further studies based on parasite isolation are needed to definitively identify the genotypes circulating and characterize the virulence of strains detected in pigs in Cuba, and to assess the risk of zoonotic transmission from pork products in this country.
Collapse
Affiliation(s)
- Julio César Castillo-Cuenca
- Departamento de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad Central "Marta Abreu" de Las Villas, Santa Clara, Villa Clara, Cuba
| | - Sonia Almería
- Division of Virulence Assessment, Department of Health and Human Services, Food and Drug Administration, Center for Food Safety and Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Laurel, Maryland, USA
| | - Rafael Calero-Bernal
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Mercedes Fernández-Escobar
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Jorge Fraga
- Departamento de Parasitología, Instituto de Medicina Tropical "Pedro Kourí", La Habana, Cuba
| | - Angel Entrena-García
- Departamento de Parasitología, Centro Nacional Para La Producción de Animales de Laboratorio (CENPALAB), La Habana, Cuba
| | - Pedro Casanova Arias
- Departamento de Parasitología, Instituto de Medicina Tropical "Pedro Kourí", La Habana, Cuba
| | - Álvaro Martínez-Moreno
- Departamento de Sanidad Animal, Unidad de Parasitología, UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Córdoba, Spain
| | - Ignacio García-Bocanegra
- Departamento de Sanidad Animal, Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Córdoba, Spain.,CIBERINFEC, ISCIII - CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| |
Collapse
|
14
|
Dámek F, Swart A, Waap H, Jokelainen P, Le Roux D, Deksne G, Deng H, Schares G, Lundén A, Álvarez-García G, Betson M, Davidson RK, Györke A, Antolová D, Hurníková Z, Wisselink HJ, Sroka J, van der Giessen JWB, Blaga R, Opsteegh M. Systematic Review and Modelling of Age-Dependent Prevalence of Toxoplasma gondii in Livestock, Wildlife and Felids in Europe. Pathogens 2023; 12:pathogens12010097. [PMID: 36678447 PMCID: PMC9865579 DOI: 10.3390/pathogens12010097] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Toxoplasma gondii is a zoonotic parasite of importance to both human and animal health. The parasite has various transmission routes, and the meat of infected animals appears to be a major source of human infections in Europe. We aimed to estimate T. gondii prevalence in a selection of animal host species. A systematic literature review resulting in 226 eligible publications was carried out, and serological data were analyzed using an age-dependent Bayesian hierarchical model to obtain estimates for the regional T. gondii seroprevalence in livestock, wildlife, and felids. Prevalence estimates varied between species, regions, indoor/outdoor rearing, and types of detection methods applied. The lowest estimated seroprevalence was observed for indoor-kept lagomorphs at 4.8% (95% CI: 1.8-7.5%) and the highest for outdoor-kept sheep at 63.3% (95% CI: 53.0-79.3%). Overall, T. gondii seroprevalence estimates were highest within Eastern Europe, whilst being lowest in Northern Europe. Prevalence data based on direct detection methods were scarce and were not modelled but rather directly summarized by species. The outcomes of the meta-analysis can be used to extrapolate data to areas with a lack of data and provide valuable inputs for future source attribution approaches aiming to estimate the relative contribution of different sources of T. gondii human infection.
Collapse
Affiliation(s)
- Filip Dámek
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, Laboratoire de Santé Animale, BIPAR, F-94700 Maisons-Alfort, France
| | - Arno Swart
- Centre for Infectious Disease Control—Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - Helga Waap
- Laboratório de Parasitologia, Instituto Nacional de Investigação Agrária e Veterinária, 2780-157 Oeiras, Portugal
| | - Pikka Jokelainen
- Infectious Disease Preparedness, Statens Serum Institut, 2300 Copenhagen, Denmark
| | - Delphine Le Roux
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, Laboratoire de Santé Animale, BIPAR, F-94700 Maisons-Alfort, France
| | - Gunita Deksne
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia
| | - Huifang Deng
- Centre for Infectious Disease Control—Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - Gereon Schares
- Institute of Epidemiology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald, Germany
| | - Anna Lundén
- Department of Microbiology, National Veterinary Institute, 75189 Uppsala, Sweden
| | - Gema Álvarez-García
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, 28040 Madrid, Spain
| | - Martha Betson
- School of Veterinary Medicine, University of Surrey, Guildford GU2 7AL, UK
| | - Rebecca K. Davidson
- Food Safety and Animal Health, Norwegian Veterinary Institute, 9016 Tromsø, Norway
| | - Adriana Györke
- Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Daniela Antolová
- Institute of Parasitology, Slovak Academy of Sciences, 040 01 Košice, Slovakia
| | - Zuzana Hurníková
- Institute of Parasitology, Slovak Academy of Sciences, 040 01 Košice, Slovakia
| | - Henk J. Wisselink
- Wageningen Bioveterinary Research, Wageningen University & Research, P.O. Box 65, 8200 AB Lelystad, The Netherlands
| | - Jacek Sroka
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, 24-100 Pulawy, Poland
| | - Joke W. B. van der Giessen
- Centre for Infectious Disease Control—Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - Radu Blaga
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, Laboratoire de Santé Animale, BIPAR, F-94700 Maisons-Alfort, France
| | - Marieke Opsteegh
- Centre for Infectious Disease Control—Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, P.O. Box 1, 3720 BA Bilthoven, The Netherlands
- Correspondence: ; Tel.: +31-6-29651388
| |
Collapse
|
15
|
Ahaduzzaman M, Hasan T. Seroprevalence of Toxoplasma gondii infection in sheep and goats from different geographical regions of the world: Systematic review and meta-analysis. Transbound Emerg Dis 2022; 69:3790-3822. [PMID: 36345796 DOI: 10.1111/tbed.14753] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 09/29/2022] [Accepted: 10/18/2022] [Indexed: 11/10/2022]
Abstract
The Toxoplasma gondii is an obligate intracellular protozoan parasite which significantly impact small ruminant productivity, international animal trade and transboundary movement of animal across the globe. The seroprevalence of T. gondii infection (toxoplasmosis) in sheep and goats is widely studied in many parts of the world and there is a lack of comprehensive information on prevalence estimates considering the global and regional perspectives. The aim of the study was to use systematic review and meta-analysis methods to estimate the global and regional pooled seroprevalence of T. gondii infection in sheep and goats, as well as factors that influence prevalence estimations. Relevant articles reporting the seroprevalence of toxoplasmosis in sheep and/goats were searched in five electronic databases, including PubMed, Web of Science, Scopus, Embase and ProQuest. After the publications were checked to verify they fit the inclusion criteria, a total of 225 articles were included in the systematic review and meta-analysis, reflecting data from 70 countries/regions. The pooled prevalence was estimated using a random effect meta-analysis model. Overall, the seroprevalence of T. gondii infection was 33.86% (95% CI: 30.47-37.25%) in sheep and 31.78% (95% CI: 28.99-34.58%) in goats, with significant variation in prevalence estimates across geographical locations (p < .001). Substantial heterogeneity (I2 > 75%) was observed in most pooled seroprevalence estimates. The T. gondii infection in global sheep and goat population showed uptrend over the period. This information would be useful for epidemiologist, health authorities and farmers in order to plan future T. gondii survey and infection management strategies both locally and internationally.
Collapse
Affiliation(s)
- Md Ahaduzzaman
- Department of Medicine and Surgery, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh
| | - Tanjila Hasan
- Department of Medicine and Surgery, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh
| |
Collapse
|
16
|
Comparison of a Commercial Enzyme-Linked Immunosorbent Assay (ELISA) with the Modified Agglutination Test (MAT) for the Detection of Antibodies against Toxoplasma gondii in a Cohort of Hunting Dogs. Animals (Basel) 2022; 12:ani12202813. [DOI: 10.3390/ani12202813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
Toxoplasmosis is a zoonotic disease, caused by the protozoan Toxoplasma gondii, affecting most warm-blooded animals. Assessing the seroprevalence of T. gondii in different animal species gives a good estimate of the global circulation of the parasite and the risk for human infections. However, the seroprevalence of T. gondii in dogs is not studied as much as other species, despite their close contact with wildlife and humans in rural or urban environments and evidence that dogs can also be a potential source for human contaminations. A commercial enzyme-inked immunosorbent assay (ELISA) kit to detect anti-T. gondii antibodies in sera of hunting dogs potentially naturally infected, was compared to the modified agglutination test (MAT), used as the reference method. The ELISA presented a sensitivity of 76.5% (CI 95%: 60.0–87.6) and a specificity of 87.7% (CI 95%: 76.7–93.9) and a substantial agreement with the MAT for the detection of canine anti-T. gondii antibodies. Both tests can therefore be used widely for epidemiology studies on T. gondii infections in dogs. With a mean seroprevalence of T. gondii infection in hunting dogs from northern Algeria of 36.8% (CI 95%: 34.9–38.7), this study also highlights the importance of T. gondii seroprevalence studies in companion animals to assess infectious risk for human populations.
Collapse
|
17
|
Potential risk factors for the presence of anti-Toxoplasma gondii antibodies in finishing pigs on conventional farms in the Netherlands. Porcine Health Manag 2022; 8:27. [PMID: 35701849 PMCID: PMC9195196 DOI: 10.1186/s40813-022-00272-z] [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: 03/07/2022] [Accepted: 06/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The parasite Toxoplasma gondii (T. gondii) causes a substantial human disease burden worldwide. Ingesting improperly cooked pork containing T. gondii is considered one of the major sources of human infection in Europe and North America. Consequently, control of T. gondii infections in pigs is warranted. The European Food Safety Authority advised to perform serological monitoring of pigs and to conduct farm audits for the presence of risk factors. Serological monitoring was implemented in several Dutch slaughterhouses, one to six blood samples (a total of 5134 samples) were taken from each delivery of finishing pigs and samples were tested for the presence of anti-T. gondii antibodies. Using these test results, a cross-sectional study was initiated to assess the association between the within-herd T. gondii seroprevalence and the presence of risk factors for T. gondii infections at 69 conventional finishing pig farms in the Netherlands. RESULTS A multivariable model showed significant (P ≤ 0.05) association with twelve potential risk factors: type of farm, presence of dogs, presence of ruminants, use of boots, use of shower and farm clothing, mode of rodent control, bedding accessibility for rodents, presence of cats, type of drinking water, heating of the feed, use of goat whey and shielding of birds. CONCLUSIONS Serological monitoring of finishing pigs for T. gondii in slaughterhouses can be used to identify the presence of T. gondii risk factors on Dutch conventional finishing pig farms and seems a valuable tool to guide and monitor the control of T. gondii in pork production.
Collapse
|
18
|
Betić N, Karabasil N, Djurković-Djaković O, Ćirković V, Bobić B, Branković Lazić I, Djordjević V, Klun I. Seroprevalence, Direct Detection and Risk Factors for Toxoplasma gondii Infection in Pigs in Serbia, and Influence of Biosecurity Measures. Microorganisms 2022; 10:microorganisms10051069. [PMID: 35630511 PMCID: PMC9146795 DOI: 10.3390/microorganisms10051069] [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: 04/14/2022] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 11/16/2022] Open
Abstract
Consumption of Toxoplasma gondii contaminated pork is a major risk factor for human infection. We thus conducted a cross-sectional survey on the seroprevalence of T. gondii infection in a representative sample of slaughter pigs from throughout Serbia and examined the influence of farm biosecurity-related risk factors on infection. In addition, direct detection of the parasite (by mouse bioassay) or its DNA was performed in the hearts of a subset of seropositive sows. The overall seroprevalence in the sample of 825 pigs as determined by the modified agglutination test (MAT) was 16.5%. Older age and inadequate rodent control were independent infection risk factors for pigs. In a subset of 581 pigs with complete biosecurity-related data, in addition to older age, smallholders’ finishing type farms (as opposed to farrow-to-finish), multispecies farming, and origin from Western and Central and South-Eastern Serbia (vs. the Northern region), all increased the risk of infection, while the absence of disinfection boot-dips in front of each barn and Belgrade district origin (vs. the Northern region) were associated with a 62% and 75% lower risk of infection, respectively. Evidence of viable parasites was obtained in 13 (41.9%) of the 31 bioassayed sow hearts, of which by isolation of brain cysts in seven, by detection of T. gondii DNA in an additional four, and by serology in another two. Recovery of brain cysts mostly (5/7) from sows with a MAT titre of ≥1:100 indicates the risk for consumers. These results highlight the public health risk from pork consumption and point to mandatory use of professional rodent control services, abstaining from multispecies farming, keeping disinfection boot-dips clean and freshly refilled, as well as strict implementation of zoo-hygienic measures on smallholders’ farms as specific farm biosecurity measures needed for its reduction.
Collapse
Affiliation(s)
- Nikola Betić
- Institute of Meat Hygiene and Technology, 11000 Belgrade, Serbia; (N.B.); (I.B.L.); (V.D.)
| | - Nedjeljko Karabasil
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Olgica Djurković-Djaković
- Centre of Excellence for Food- and Vector-Borne Zoonoses, Institute for Medical Research, University of Belgrade, 11129 Belgrade, Serbia; (O.D.-D.); (V.Ć.); (B.B.)
| | - Vladimir Ćirković
- Centre of Excellence for Food- and Vector-Borne Zoonoses, Institute for Medical Research, University of Belgrade, 11129 Belgrade, Serbia; (O.D.-D.); (V.Ć.); (B.B.)
| | - Branko Bobić
- Centre of Excellence for Food- and Vector-Borne Zoonoses, Institute for Medical Research, University of Belgrade, 11129 Belgrade, Serbia; (O.D.-D.); (V.Ć.); (B.B.)
| | - Ivana Branković Lazić
- Institute of Meat Hygiene and Technology, 11000 Belgrade, Serbia; (N.B.); (I.B.L.); (V.D.)
| | - Vesna Djordjević
- Institute of Meat Hygiene and Technology, 11000 Belgrade, Serbia; (N.B.); (I.B.L.); (V.D.)
| | - Ivana Klun
- Centre of Excellence for Food- and Vector-Borne Zoonoses, Institute for Medical Research, University of Belgrade, 11129 Belgrade, Serbia; (O.D.-D.); (V.Ć.); (B.B.)
- Correspondence: ; Tel.: +381-11-2685-788
| |
Collapse
|
19
|
Duong HD, Taniguchi Y, Takashima Y, Sekiguchi S, Aye KM, Ahmadi P, Bui LK, Irie T, Nagayasu E, Yoshida A. Diagnostic value of recombinant nanoluciferase fused Toxoplasma gondii antigens in Luciferase-linked Antibody Capture Assay (LACA) for Toxoplasma infection in pigs. J Vet Med Sci 2022; 84:905-913. [PMID: 35584943 PMCID: PMC9353080 DOI: 10.1292/jvms.22-0099] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Toxoplasmosis is a widespread protozoan zoonosis. Since ingesting undercooked meat harboring Toxoplasma gondii cyst is considered one of the major transmission routes to
humans, the screening of T. gondii in meat-producing animals can reduce the risk of food-borne toxoplasmosis in humans. Among serological diagnostic methods,
Luciferase-linked Antibody Capture Assay (LACA) has been found to be a promising platform with high sensitivity and specificity. In this study, we aimed to evaluate recombinant
nanoluciferase fused-T. gondii antigens (rNluc-GRA6, rNluc-GRA7, rNluc-GRA8 and rNluc-BAG1) for their potential use in LACA for pigs. As a result, the sensitivity of GRA6-,
GRA7-, GRA8- and BAG1-LACA were 70.0%, 80.0%, 80.0% and 30.0% with specificity 87.0%, 81.5%, 74.1% and 50.0%, respectively. The cocktail LACA using a mixture of rNluc-GRA6, rNluc-GRA7 and
rNluc-GRA8 indicated higher sensitivity (90.0%) and a similar specificity (96.3%) in comparison with the commercial ELISA kit. Compared to the Dye-Test as a reference test, cocktail LACA
showed strong agreement (kappa value=0.811) when we assessed pig sera collected at the slaughterhouse. In addition, we also successfully established the rapid LACA format for the detection
of Toxoplasma infection in pigs (called Rapid-LACA) in which the test could be performed within 30 min. In Rapid-LACA, the protein A pre-coated/blocked plates could be
preserved at −30°C, 4°C or room temperature conditions for at least two months without compromising on the quality of assay.
Collapse
Affiliation(s)
- Hieu Duc Duong
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki.,Department of Veterinary Parasitology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture
| | - Yuji Taniguchi
- Department of Veterinary Parasitology, Faculty of Applied Biological Sciences, Gifu University
| | - Yasuhiro Takashima
- Department of Veterinary Parasitology, Faculty of Applied Biological Sciences, Gifu University
| | - Satoshi Sekiguchi
- Laboratory of Animal Infectious Disease and Prevention, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki.,Centre for Animal Diseases Control (CADIC), University of Miyazaki
| | - Khin Myo Aye
- Division of Parasitology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki.,Parasitology Research Division, Department of Medical Research
| | - Parnian Ahmadi
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki
| | - Linh Khanh Bui
- Department of Veterinary Parasitology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture
| | - Takao Irie
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki.,Centre for Animal Diseases Control (CADIC), University of Miyazaki
| | - Eiji Nagayasu
- Division of Parasitology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki
| | - Ayako Yoshida
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki.,Centre for Animal Diseases Control (CADIC), University of Miyazaki
| |
Collapse
|
20
|
Athanasiou LV, Katsogiannou EG, Tsokana CN, Dedousi A, Boutsini S, Papakonstantinou G, Papatsiros VG. Detection of Antibodies Against Toxoplasma gondii in Filter Paper-Dried Blood Dot Spots Compared with Serum in Pigs and Assessment of Variation Associated with Packed Cell Volume. Foodborne Pathog Dis 2022; 19:394-399. [PMID: 35443790 DOI: 10.1089/fpd.2021.0115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The aim of this study was to assess the agreement between anti-Toxoplasma gondii IgG antibody detection in serum and filter paper (FP) blood spots using the indirect immunofluorescence antibody assay (IFA) and to evaluate the potential impact of the packed cell volume (PCV) on antibody detection in FPs. A pair of a serum and an FP sample was collected from 96 sows at various farms in Greece, with previously identified high seropositivity and/or risk factors associated with high seropositivity against T. gondii. The PCV value was determined using the microhematocrit method. IFA was used for the detection of antibodies against T. gondii. T. gondii-specific antibodies were detected in 45.8% serum samples and 41.6% FP samples showing almost perfect agreement. Detection in FP samples presented high sensitivity (87.1-92.8%) and excellent specificity (100%) when compared with detection in serum, regardless of the PCV values. The findings of this study support the reliability of FPs for the evaluation of the serological status of swine against T. gondii. FPs could be a good alternative sample type compared with serum for large-scale epidemiological studies.
Collapse
Affiliation(s)
- Labrini V Athanasiou
- Clinic of Medicine, Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece
| | - Eleni G Katsogiannou
- Clinic of Medicine, Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece
| | - Constantina N Tsokana
- Clinic of Medicine, Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece
| | - Anna Dedousi
- Veterinary Research Institute, HAO-Demeter, Thessaloniki, Greece
| | - Sofia Boutsini
- Parasitology - Parasitic Diseases, Entomology, and Bee Health Department, Veterinary Center of Athens/General Directorate of Veterinary Services, Athens, Greece
| | - George Papakonstantinou
- Clinic of Medicine, Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece
| | - Vasileios G Papatsiros
- Clinic of Medicine, Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece
| |
Collapse
|
21
|
Liu X, Fan L, Tan Q, Chen X, Li H, Zhao X, Zhang X. Prevalence of Toxoplasma gondii in pigs determined by ELISA based on recombinant SAG1 in Shandong province, China. Comp Immunol Microbiol Infect Dis 2022; 83:101781. [DOI: 10.1016/j.cimid.2022.101781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 11/16/2022]
|
22
|
Hajimohammadi B, Ahmadian S, Firoozi Z, Askari M, Mohammadi M, Eslami G, Askari V, Loni E, Barzegar-Bafrouei R, Boozhmehrani MJ. A Meta-Analysis of the Prevalence of Toxoplasmosis in Livestock and Poultry Worldwide. ECOHEALTH 2022; 19:55-74. [PMID: 35133541 PMCID: PMC8823692 DOI: 10.1007/s10393-022-01575-x] [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: 08/24/2020] [Accepted: 12/01/2021] [Indexed: 06/01/2023]
Abstract
Toxoplasma gondii causes toxoplasmosis with a global prevalence in the world. A large proportion of human illness is most frequently associated with consuming raw and undercooked meat or other animal products containing infective parasitic stages of T. gondii. This systematic review and meta-analysis study evaluated the prevalence of toxoplasmosis in cattle, sheep, camels, goats, and poultry worldwide. The search was performed in databases including PubMed, WoS, Scopus, Science Direct, Google Scholar, and ISC from 2000 to 2019 in Persian and English. The main inclusion criteria were the prevalence of toxoplasmosis among livestock and poultry and the prevalence indices by sample size. During these 20 years, the overall prevalence of toxoplasmosis in livestock and poultry was 28.3% (95% confidence interval (CI) 25-31.9%) using the random-effects meta-analysis model. The highest prevalence of T. gondii in livestock and poultry animals was found in Asia in 2014 with 89.8% (95% CI 78.5-95.5%). The lowest prevalence was found in Asia in 2013 with 1.26% (95% CI 0.4-3.8%). A quarter of livestock and poultry were infected with T. gondii. Since livestock products are globally important sources of people's diet, our findings are useful for policymakers to control T. gondii infection in livestock.
Collapse
Affiliation(s)
- Bahador Hajimohammadi
- Research Center for Food Hygiene and Safety, Shahid Sadoughi University of Medical Sciences, Shohadaye Gomnam Blvd., Yazd, 8916188638, Islamic Republic of Iran
- Department of Food Hygiene and Safety, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Salman Ahmadian
- Department of Parasitology and Mycology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Zohre Firoozi
- Department of Food Hygiene and Safety, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Maryam Askari
- Diabetes Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Masoud Mohammadi
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Gilda Eslami
- Research Center for Food Hygiene and Safety, Shahid Sadoughi University of Medical Sciences, Shohadaye Gomnam Blvd., Yazd, 8916188638, Islamic Republic of Iran.
- Department of Parasitology and Mycology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Vahideh Askari
- Research Center for Food Hygiene and Safety, Shahid Sadoughi University of Medical Sciences, Shohadaye Gomnam Blvd., Yazd, 8916188638, Islamic Republic of Iran
| | - Elahe Loni
- Research Center for Food Hygiene and Safety, Shahid Sadoughi University of Medical Sciences, Shohadaye Gomnam Blvd., Yazd, 8916188638, Islamic Republic of Iran
| | - Raziyeh Barzegar-Bafrouei
- Department of Food Hygiene and Safety, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Javad Boozhmehrani
- Department of Parasitology and Mycology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| |
Collapse
|
23
|
Li MY, Gao XN, Ma JY, Elsheikha HM, Cong W. A systematic review, meta-analysis and meta-regression of the global prevalence of Toxoplasma gondii infection in wild marine mammals and associations with epidemiological variables. Transbound Emerg Dis 2022; 69:e1213-e1230. [PMID: 35195942 DOI: 10.1111/tbed.14493] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 02/06/2022] [Accepted: 02/20/2022] [Indexed: 11/30/2022]
Abstract
Toxoplasma gondii infection in wild marine mammals is a growing problem and is associated with adverse impacts on marine animal health and public health. This systematic review, meta-analysis and meta-regression estimates the global prevalence of T. gondii infection in wild marine mammals and analyzes the association between T. gondii infection and epidemiological variables. PubMed, Web of Science, Science Direct, China National Knowledge Infrastructure, and Wanfang Data databases were searched until 30 May 2021. Eighty-four studies (n = 14,931 wild marine mammals from 15 families) were identified from literature. The overall pooled prevalence of T. gondii infection was 22.44% (3,848/14,931; 95% confidence interval (CI): 17.29% - 8.04%). The prevalence in adult animals 21.88% (798/3119; 95% CI: 13.40 -31.59) was higher than in the younger age groups. North America had a higher prevalence 29.92% (2756/9243; 95% CI: 21.77 - 38.77) compared with other continents. At the country level, the highest prevalence was found in Spain 44.26% (19/88; 95%CI: 5.21 - 88.54). Regarding climatic variables, the highest prevalence was found in areas with a mean annual temperature >20°C 36.28% (171/562; 95% CI: 6.36 - 73.61) and areas with an annual precipitation >800 mm 26.92% (1341/5042; 95% CI: 18.20 - 36.59). The subgroup and meta-regression analyses showed that study-level covariates, including age, country, continent, and mean temperature, partly explained the between-study heterogeneity. Further studies are needed to investigate the source of terrestrial to aquatic dissemination of T. gondii oocysts, the fate of this parasite in marine habitat and its effects on wild marine mammals. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Man-Yao Li
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
| | - Xiao-Nan Gao
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
| | - Jun-Yang Ma
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
| | - Hany M Elsheikha
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Wei Cong
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
| |
Collapse
|
24
|
Puchalska M, Wiśniewski J, Klich D, Gołąb E, Jańczak D, Sokołowska J, Urbańska K, Anusz K. A serological survey of Toxoplasma gondii in polish pigs from organic farms, other housing systems and in pigs of different age groups. Acta Vet Scand 2022; 64:3. [PMID: 35130949 PMCID: PMC8822955 DOI: 10.1186/s13028-022-00623-4] [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: 06/02/2021] [Accepted: 01/26/2022] [Indexed: 11/10/2022] Open
Abstract
Background The consumption of raw or undercooked meat, especially pork, and offal containing infective tissue cysts is suspected to be a significant route of infection with Toxoplasma gondii. Although the use of “animal-friendly pig production systems” ensuring direct contact with the natural environment offers ethical benefits, it limits the ability to ensure animal health; it may also increase the probability of infections by pathogens such as T. gondii, and thus their entry into the food chain. This study determines the seroprevalence of T. gondii in pigs from different housing systems and farms with different hygiene standards in Poland, as well as among pigs of different age groups from farms with high hygiene standards. In total 760 pig serum samples were examined for the presence of specific antibodies using the PrioCHECK® Toxoplasma Ab porcine commercial ELISA test (Prionics, Switzerland). Results Test results with PP ≥ 20% were regarded as positive, as indicated by the manufacturer. Antibodies to T. gondii were found in 193 of 760 (25.4%) tested sera. Regarding different housing systems, antibodies were found in 117 pigs: of these, 52.6% (61/116) were from organic farms, 40.9% (47/115) from farms with low hygiene standards, 5.4% (9/167) from farms with high hygiene standards and 0% (0/40) from a farm with a high level of biosecurity. Regarding age groups, antibodies were found in 76 animals on farms with high hygiene standards: 11.1% (7/63) were pigs younger than 3 months, 0% (0/60) aged 3–4 months, 12.3% (7/57) aged 5–6 months (final fattening stage) and 43.7% (62/142) were sows aged 9 months and older. Conclusions Antibodies to T. gondii were most often found in pigs from organic and low-hygiene farms, as well as in pigs aged 9 months and older. Meat derived from seropositive animals can pose a potential source of infection for humans. As maternal antibodies to T. gondii can be present in the blood of piglets aged up to 3–4 months, serological examination is unjustified in piglets up to this age.
Collapse
|
25
|
Toxoplasma gondii Infections in Animals and Humans in Southern Africa: A Systematic Review and Meta-Analysis. Pathogens 2022; 11:pathogens11020183. [PMID: 35215126 PMCID: PMC8880191 DOI: 10.3390/pathogens11020183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/15/2022] [Accepted: 01/17/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Toxoplasma gondii is an apicomplexan parasite with zoonotic importance worldwide especially in pregnant women and immunocompromised people. This study is set to review the literature on T. gondii infections in humans and animals in southern Africa. Methods: We extracted data regarding T. gondii infections from published articles from southern Africa from 1955 to 2020 from four databases, namely Google Scholar, PubMed, EBSCO Host, and Science Direct. Forty articles from eight southern African countries were found eligible for the study. Results: This review revealed a paucity of information on T. gondii infection in southern African countries, with an overall prevalence of 17% (95% CI: 7–29%). Domestic felids had a prevalence of 29% (95% CI: 7–54%), wild felids 79% (95% CI: 60–94), canids (domestic and wild) 69% (95% CI: 38–96%), cattle 20% (95% CI: 5–39%), pigs 13% (95% CI: 1–29%), small ruminants (goats and sheep) 11% (95% CI: 0–31%), chicken and birds 22% (95% CI: 0–84%), and humans 14% (95% CI: 5–25%). Enzyme-linked immunosorbent assay (ELISA) and immunofluorescence antibody test (IFAT) constituted the most frequently used diagnostic tests for T. gondii. Conclusions: We recommend more focused studies be conducted on the epidemiology of T. gondii in the environment, food animals and human population, most especially the at-risk populations.
Collapse
|
26
|
Occurrence of serum antibodies to Toxoplasma gondii and associated risk factors in donkeys from central Kenya. Trop Anim Health Prod 2022; 54:77. [PMID: 35076783 DOI: 10.1007/s11250-022-03079-w] [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: 11/04/2021] [Accepted: 01/20/2022] [Indexed: 10/19/2022]
Abstract
Toxoplasma gondii is an intracellular parasite of zoonotic concern and economic importance in humans and animals, respectively. This study was conducted to determine the occurrence of T. gondii and associated risk factors in domestic donkeys from Kirinyaga and Meru counties in Kenya. Blood samples were collected from 363 randomly selected donkeys for detection of antibodies to T. gondii using a commercial kit ID Screen® Toxoplasmosis Multi-species indirect enzyme-linked immunosorbent assay (ELISA). The data on risk factors were collected by interviewing donkey owners using epidemiological questionnaire. Serum antibodies to T. gondii were detected in 26.4% (95% CI: 22.2-31.3) of the donkeys. The analysis showed that age of donkeys (OR = 2.484, 95% CI: 1.315-4.693; p = 0.005) was associated with increased risk for T. gondii seroprevalence while county of origin of donkeys (OR = 0.182, 95% CI: 0.083-0.400; p = 0.000), residential place of donkeys (OR = 0.301, 95% CI: 0.136-0.665; p = 0.003), rearing chicken (OR = 0.203, 95% CI: 0.064-0.644; p = 0.007), and donkey production system (OR = 0.644, 95% CI: 0.456-0.909; p = 0.012) were associated with reduced risk of T. gondii seroprevalence. This is the first report to provide epidemiological information on T. gondii infection among donkeys in Kenya. The presence of antibodies to T. gondii in donkeys suggests the high potential of transmission to other animals and humans. Regular monitoring and control of T. gondii infection in donkeys were recommended in the study area.
Collapse
|
27
|
Toxoplasma gondii in humans and animals in Japan: An epidemiological overview. Parasitol Int 2021; 87:102533. [PMID: 34968753 DOI: 10.1016/j.parint.2021.102533] [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: 08/09/2021] [Revised: 11/29/2021] [Accepted: 12/22/2021] [Indexed: 11/23/2022]
Abstract
Toxoplasmosis is a cosmopolitan protozoan zoonosis caused by Toxoplasma gondii infamous for inducing severe clinical manifestations in humans. Although the disease affects at least one billion people worldwide, it is neglected in many countries including developed ones. In literature, the epidemiological data documenting the actual incidence of the disease in humans and domestic animals from Japan are limited and importantly many earlier papers on T. gondii infections were published in Japanese and a considerable part is not available online. Herein, we review the current summary about the epidemiological situation of T. gondii infection in Japan and the potential associated risk factors in humans and animals as well as the different T. gondii genotypes isolated in Japan. Several T. gondii isolates have been identified among cats (TgCatJpTy1/k-3, TgCatJpGi1/TaJ, TgCatJpObi1 and TgCatJpOk1-4) and goats (TgGoatJpOk1-13). This literature review underscores the need for a nationwide investigation of T. gondii infection in Japanese people and assessment of the socioeconomic impact of the disease burden. Furthermore, epidemiological studies in domestic and wild animals and estimation of degree of contamination of soil or water with T. gondii oocysts are needed, for a better understanding of the scope of this public health concern.
Collapse
|
28
|
Detection of Acute and Chronic Toxoplasma gondii Infection among Women with History of Abortion in the Southwest of Iran. J Parasitol Res 2021; 2021:6693070. [PMID: 34765259 PMCID: PMC8577945 DOI: 10.1155/2021/6693070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 08/31/2021] [Accepted: 10/12/2021] [Indexed: 11/18/2022] Open
Abstract
Background Toxoplasma gondii (T. gondii) is one of the most common intracellular protozoan parasites, which can infect humans and a wide range of mammals and birds. The current study is aimed at investigating the occurrence of T. gondii infection in women with a history of abortion in Khuzestan, Iran. Materials and Methods A total of 480 women with an abortion history, as well as 200 pregnant women with a normal delivery, were examined in this study. The blood, placenta, and umbilical cord blood samples were assessed by the enzyme-linked immunosorbent assay (ELISA) and nested-polymerase chain reaction (PCR) assay. Results Based on the results of ELISA assay, the prevalence of toxoplasmosis was 30.83% in women with a history of abortion (25.62% with T. gondii IgG and 5.20% with T. gondii IgM). According to the IgG avidity test, 60.16% of IgG-positive samples showed high avidity, while 27.64% showed low avidity. On the other hand, the prevalence of toxoplasmosis in women with a normal delivery was 23% (21.5% with T. gondii IgG and 1.5% with T. gondii IgM). According to the IgG avidity test, 81.39% of these women showed high avidity, while only 4.65% showed low avidity. Based on the nested-PCR method, T. gondii DNA was detected in 14.18% of blood samples, 4.69% of placental samples, and 1.34% of umbilical cord samples, collected from 148 seropositive women with a history of abortion. Besides, using this method, the parasite DNA was identified in 4.34% of blood samples, collected from 46 seropositive women with a normal delivery, but not in any of the umbilical cord or placenta samples. Conclusion The present results showed that T. gondii infection contributes to abortion in Khuzestan Province, Iran. Therefore, it is essential to investigate toxoplasmosis in pregnant women, especially in those who are seronegative, using molecular and serological methods and inform them about their disease and the associated risks.
Collapse
|
29
|
Papatsiros VG, Athanasiou LV, Kostoulas P, Giannakopoulos A, Tzika E, Billinis C. Toxoplasma gondii Infection in Swine: Implications for Public Health. Foodborne Pathog Dis 2021; 18:823-840. [PMID: 34491108 DOI: 10.1089/fpd.2021.0039] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Toxoplasmosis, due to Toxoplasma gondii, is a parasitic disease with global importance. Among livestock, chronic T. gondii infection has been reported in higher rates in pigs and small ruminants, but with subclinical infections in case commonly encountered in pigs. Seroprevalence in the global pig population ranges according to the age or species of pigs, geographical distribution, production programs, and systems. Generally, T. gondii infections are noticed in low prevalence rates in conventional pig farms with high hygiene standards. In contrast, higher prevalence is common on free-ranging farms, outdoor or backyard small pig fams, as well as in farmed or hunted wild boars. The T. gondii average worldwide seroprevalence in pigs is reported to be 13% in Europe, 21% in Africa, 25% in North America, 21% in Asia, and 23% in South America. Human toxoplasmosis outbreaks have been correlated with the consumption of raw or undercooked meat, especially from infected pigs or wild boars, as well as of contaminated drinking water. The risk of infection in processed pork products is lower compared with fresh pork, as meat processing can reduce or inactivate T. gondii tissue cysts. Hence, the prevalence of T. gondii in the pig population may be a useful indicator of the risk of human toxoplasmosis associated with the consumption of pork products. The lack of obligatory screening methods at farm level for the detection of antibodies in farmed animals or the viable T. gondii in carcasses at slaughterhouse level increases the risk of contaminated pork or meat products. For this reason, the application of biosecurity and surveillance programs at farm level is very important to prevent a T. gondii infection.
Collapse
Affiliation(s)
- Vasileios G Papatsiros
- Clinic of Medicine, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Karditsa, Greece
| | - Labrini V Athanasiou
- Clinic of Medicine, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Karditsa, Greece
| | - Polychronis Kostoulas
- Laboratory of Epidemiology & Artificial Intelligence, Faculty of Public Health, School of Health Sciences, University of Thessaly, Karditsa, Greece
| | - Alexios Giannakopoulos
- Department of Microbiology & Parasitology, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Karditsa, Greece
| | - Eleni Tzika
- Farm Animal Clinic, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Charalambos Billinis
- Department of Microbiology & Parasitology, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Karditsa, Greece
| |
Collapse
|
30
|
Maspi N, Nayeri T, Moosazadeh M, Sarvi S, Sharif M, Daryani A. Global seroprevalence of Toxoplasma gondii in Camelidae: A systematic review and meta-analysis. Acta Parasitol 2021; 66:733-744. [PMID: 33666861 DOI: 10.1007/s11686-020-00333-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/29/2020] [Indexed: 12/01/2022]
Abstract
PURPOSE The present study aimed to analyze data available of the seroprevalence of Toxoplasma gondii (T. gondii) among camelids around the world. METHODS The search was performed using seven international databases including Scopus, PubMed, Google Scholar, ProQuest, ScienceDirect, Web of Science, and EMBASE up to 11 October 2018. Random effects model was used to determine the pooled seroprevalence of T. gondii infection with 95% confidence intervals (CI) and analyzed data from four continents. Subgroup and meta-regression analyses were also performed according to continent and gender. RESULTS In total, 42 studies out of 3517 published articles involving 14,542 camels from 17 countries were included for the final analyses. The global pooled seroprevalence of T. gondii infection in the Camelidae family was 28.16% (95% CI 23.64-32.68%). Besides, the highest seroprevalence rate was in Europe (49.64%) followed by Africa (37.63%), America (21.76%), and Asia (17.58%). Moreover, the overall seroprevalence rates of T. gondii infection were 22% (95% CI 10-33%) and 15% (95% CI 9-22%) for the females and males, respectively. CONCLUSION This meta-analysis showed a high seroprevalence of T. gondii infection in camelids as these animals play an important role in the transmission cycle of this zoonotic disease.
Collapse
Affiliation(s)
- Nahid Maspi
- Department of Parasitology, School of Paramedicine, Ilam University of Medical Sciences, Ilam, Iran
- Zoonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Tooran Nayeri
- Department of Parasitology, School of Medicine, Sari Medical School, Mazandaran University of Medical Sciences, Sari, 48168-95475, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mahmood Moosazadeh
- Health Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shahabeddin Sarvi
- Department of Parasitology, School of Medicine, Sari Medical School, Mazandaran University of Medical Sciences, Sari, 48168-95475, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehdi Sharif
- Department of Parasitology, School of Medicine, Sari Branch, Islamic AZAD University, Sari, Iran
| | - Ahmad Daryani
- Department of Parasitology, School of Medicine, Sari Medical School, Mazandaran University of Medical Sciences, Sari, 48168-95475, Iran.
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| |
Collapse
|
31
|
Song Y, Zhao Y, Pan K, Shen B, Fang R, Hu M, Zhao J, Zhou Y. Characterization and evaluation of a recombinant multiepitope peptide antigen MAG in the serological diagnosis of Toxoplasma gondii infection in pigs. Parasit Vectors 2021; 14:408. [PMID: 34404476 PMCID: PMC8369689 DOI: 10.1186/s13071-021-04917-w] [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: 05/31/2021] [Accepted: 08/02/2021] [Indexed: 11/28/2022] Open
Abstract
Background Toxoplasmosis caused by Toxoplasma gondii is a serious disease threatening human and animal health. People can be infected with T. gondii by ingesting raw pork contaminated with cysts or oocysts. Serological test is a sensitive and specific method usually used for large-scale diagnosis of T. gondii infection in humans and animals (such as pigs). Commercial pig Toxoplasma antibody ELISA diagnostic kits are expensive, which limits their use; moreover, the wide antigen composition used in these diagnostic kits is still unclear and difficult to standardize. The multiepitope peptide antigen is a novel diagnostic marker, and it has potential to be developed into more accurate and inexpensive diagnostic kits. Methods The synthetic multiepitope antigen (MAG) cDNA encoding a protein with epitopes from five T. gondii-dominant antigens (SAG1, GRA1, ROP2, GRA4, and MIC3) was designed, synthesized, and expressed in Escherichia coli BL21 (DE3) strain. The recombinant protein was detected through western blot with pig anti-T. gondii-positive and -negative serum, and then IgG enzyme-linked immunosorbent assay (ELISA) named MAG-ELISA was designed. The MAG-ELISA was evaluated in terms of specificity, sensitivity, and stability. The MAG-ELISA was also compared with a commercial PrioCHECK®Toxoplasma Ab porcine ELISA (PrioCHECK ELISA). Finally, the trend of pig anti-T. gondii IgG levels after artificial infection with RH tachyzoites was evaluated using MAG-ELISA and two other ELISA methods (rMIC3-ELISA and PrioCHECK ELISA). Results MAG antigen could be specifically recognized by pig anti-T. gondii-positive but not -negative serum. MAG-ELISA showed high diagnostic performance in terms of specificity (88.6%) and sensitivity (79.1%). MAG-ELISA could be used for detecting anti-T. gondii IgG in the early stage of T. gondii infection in pigs (at least 7 days after artificial infection). Conclusions Our results suggest that MAG antigen can be applied to specifically recognize anti-T. gondii IgG in pig, and MAG-ELISA has the potential for large-scale screening tests of T. gondii infection in pig farms and intensive industries. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-021-04917-w.
Collapse
Affiliation(s)
- Yongle Song
- Key Laboratory Preventive Veterinary of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China
| | - Yongjuan Zhao
- Key Laboratory Preventive Veterinary of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China
| | - Ke Pan
- Key Laboratory Preventive Veterinary of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China
| | - Bang Shen
- Key Laboratory Preventive Veterinary of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China
| | - Rui Fang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China
| | - Min Hu
- Key Laboratory Preventive Veterinary of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China
| | - Junlong Zhao
- Key Laboratory Preventive Veterinary of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China
| | - Yanqin Zhou
- Key Laboratory Preventive Veterinary of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China. .,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.
| |
Collapse
|
32
|
The risk factors for intestinal Giardia spp infection: Global systematic review and meta-analysis and meta-regression. Acta Trop 2021; 220:105968. [PMID: 34029531 DOI: 10.1016/j.actatropica.2021.105968] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 05/05/2021] [Accepted: 05/16/2021] [Indexed: 12/15/2022]
Abstract
Parasitic infections are a public health concern as they can cause aggression, growth retardation, weight loss, anemia, and other health problems. In this study, a systematic review and meta-analysis were performed to find an association between the probable social-environmental risk factors including lack of safe drinking water, no hand washing, sex, age, no access to education, no access to toilet, and Giardia spp infection. We conducted literature research among international databases including Scopus, PubMed, Web of Science and Cochrane from1 January 1995 to March 15, 2020, including 23 articles with 102 studies while the odds ratio (OR) was calculated using 2 × 2 tables or extracted. The pooled effect size with 95% confidence intervals (CIs) was estimated using a random or fixed-effects model. The results show a significant association between intestinal Giardia spp infection risk and lack of safe drinking water (OR: 1.14; 95%CI: 1.02-1.25); no access to toilet (OR: 1.22; 95%CI: 1.07-1.37); and age (2-10 vs 10-30 year) (OR: 1.42; 95%CI: 1.09-1.78). An insignificant association was observed between intestinal Giardia spp infection risk and age (<2 vs 2-10 year) (OR: 0.89; 95%CI: 0.75-1.02); no access to education (OR: 1.10; 95%CI: 0.80-1.40); Sex (male vs female) (OR: 1.04; 95%CI: 0.74-1.34); and no handwashing (OR: 1.18; 95%CI: 0.87-1.49). The results of meta-regression also indicate that intestinal Giardia spp infection has decreased over time (C= -0.024, p-value = 0.03) significantly, and also by growth of human development index (HDI) (C= - 0.42, p-value = 0.29) insignificantly. Improvement of personal hygiene, sanitation and raising public awareness can be effective in reducing Giardia spp infections.
Collapse
|
33
|
Seroprevalence of Toxoplasma gondii and associated risk factors in domestic pigs raised from Cuba. Parasitol Res 2021; 120:2897-2903. [PMID: 34313806 PMCID: PMC8370946 DOI: 10.1007/s00436-021-07245-1] [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: 03/23/2021] [Accepted: 07/09/2021] [Indexed: 11/30/2022]
Abstract
A cross-sectional study was carried out to determine the seroprevalence of Toxoplasma gondii and associated risk factors in pigs in the largest pork-producing region in Cuba. Serum samples from 420 pigs, including 210 sows and 210 post-weaning pigs, were tested for antibodies against T. gondii using a commercial indirect enzyme-linked immunosorbent assay. Anti-T. gondii antibodies were detected in 56 animals (13.3%, 95% CI: 10.1–16.6). A generalized estimating equations model revealed that the risk factors associated with higher seropositivity in pigs were altitude (higher in farm’s location < 250 m above sea level (masl) versus ≥ 250 masl) and age (higher in sows compared to post-weaning pigs). The results indicated that this protozoan parasite is widely distributed on pig farms in the study area, which is a public health concern since the consumption of raw or undercooked pork meat products containing tissue cysts is considered one of the main routes of T. gondii transmission worldwide. Control measures should be implemented to reduce the risk of exposure to T. gondii in pigs in Cuba.
Collapse
|
34
|
Eppink DM, Wisselink HJ, Krijger IM, van der Giessen JWB, Swanenburg M, van Wagenberg CPA, van Asseldonk MAPM, Bouwknegt M. Effectiveness and costs of interventions to reduce the within-farm Toxoplasma gondii seroprevalence on pig farms in the Netherlands. Porcine Health Manag 2021; 7:44. [PMID: 34311779 PMCID: PMC8311922 DOI: 10.1186/s40813-021-00223-0] [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: 06/12/2021] [Accepted: 07/13/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The parasite Toxoplasma gondii (T. gondii) is recognized as one of the major foodborne pathogens with a high human disease burden. To control T. gondii infections in pigs, European Food Safety Agency (EFSA) advises serological testing of pigs and audits of pig farms to identify risk factors for T. gondii infection. In line with this approach, the aim of the current study was to assess the effectiveness and costs of intervention measures implemented to reduce the T. gondii seroprevalence on finishing pig farms in the Netherlands. A crossover clinical trial was conducted at five case farms were their own control and the cross-over moment was the implementation of interventions to reduce risk factors. Each of the case farms had a farm-specific intervention strategy with one principal intervention measure (neutering of cats, professional rodent control or covering food storage). RESULTS All finishing pig farms (n = 5) showed a reduction in T. gondii seroprevalence within one year of implementing the intervention strategy. Cat neutering (n = 3) and feed coverage (n = 1) showed statistically significant reductions in seroprevalence. Rodent control (n = 1) did not show a statistically significant reduction. The estimated reduction in seroprevalence in response to the neutering of cats and feed coverage were 67 and 96 %, respectively. CONCLUSIONS Our work demonstrates that it is possible to reduce the within-farm T. gondii seroprevalence within one year after interventions were implemented to reduce T. gondii risk factors. This information is essential and encouraging for policy makers, food business operators, and farmers to implement in their risk assessment and to apply to food safety control systems.
Collapse
Affiliation(s)
| | | | - Inge M Krijger
- Kennis- en Adviescentrum Dierplagen, Wageningen, The Netherlands
| | | | | | | | | | | |
Collapse
|
35
|
Taghipour A, Tavakoli S, Sabaghan M, Foroutan M, Majidiani H, Soltani S, Badri M, Ghaffari AD, Soltani S. Immunoinformatic Analysis of Calcium-Dependent Protein Kinase 7 (CDPK7) Showed Potential Targets for Toxoplasma gondii Vaccine. J Parasitol Res 2021; 2021:9974509. [PMID: 34336254 PMCID: PMC8295510 DOI: 10.1155/2021/9974509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/10/2021] [Accepted: 06/22/2021] [Indexed: 12/02/2022] Open
Abstract
Apicomplexan parasites, including Toxoplasma gondii (T. gondii), express different types of calcium-dependent protein kinases (CDPKs), which perform a variety of functions, including attacking and exiting the host cells. In the current bioinformatics study, we have used several web servers to predict the basic features and specifications of the CDPK7 protein. The findings showed that CDPK7 protein has 2133 amino acid residues with an average molecular weight (MW) of 219085.79 D. The aliphatic index with 68.78 and grand average of hydropathicity (GRAVY) with -0.331 score were estimated. The outcomes of current research showed that the CDPK7 protein included 502 alpha-helix, 1311 random coils, and 320 extended strands with GOR4 method. Considering the Ramachandran plot, the favored region contains more than 92% of the amino acid residues. In addition, evaluation of antigenicity and allergenicity showed that CDPK7 protein has immunogenic and nonallergenic nature. The present research provides key data for more animal-model study on the CDPK7 protein to design an efficient vaccine against toxoplasmosis in the future.
Collapse
Affiliation(s)
- Ali Taghipour
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sanaz Tavakoli
- Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Masoud Foroutan
- USERN Office, Abadan University of Medical Sciences, Abadan, Iran
| | - Hamidreza Majidiani
- Zoonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Shahrzad Soltani
- USERN Office, Abadan University of Medical Sciences, Abadan, Iran
| | - Milad Badri
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Ali Dalir Ghaffari
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sheyda Soltani
- USERN Office, Abadan University of Medical Sciences, Abadan, Iran
| |
Collapse
|
36
|
Maleki B, Ahmadi N, Olfatifar M, Gorgipour M, Taghipour A, Abdoli A, Khorshidi A, Foroutan M, Mirzapour A. Toxoplasma oocysts in the soil of public places worldwide: a systematic review and meta-analysis. Trans R Soc Trop Med Hyg 2021; 115:471-481. [PMID: 33205208 DOI: 10.1093/trstmh/traa133] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/27/2020] [Accepted: 10/26/2020] [Indexed: 11/14/2022] Open
Abstract
Toxoplasmosis is a zoonotic and cosmopolitan infection. Although a few studies have evaluated the prevalence of Toxoplasma oocysts in the soil of public places, the present study was conducted to provide insights into environmental contamination levels and its potential transmission to humans on a global scale. A systematic search was conducted using bibliographic databases through 30 August 2020. A random effects model was utilized to estimate pooled prevalence with 95% confidence intervals (CIs). Subgroup analysis and meta-regressions were also performed on the geographical and environmental parameters. Finally, 22 articles, wherein 15 420 soil samples were examined, met the systematic review and meta-analysis requirements. The mean pooled prevalence of Toxoplasma oocysts was estimated at 16% (95% CI 10 to 26) in public places. The estimated prevalences in Europe, South America, Asia and North America were 23% (95% CI 4 to 65), 22% (95% CI 18 to 26), 15% (95% CI 0.06 to 33) and 8% (95% CI 0.00 to 97), respectively. An increasing trend was observed in the prevalence of Toxoplasma oocysts with increasing latitude (41-56°), decreasing longitude (0-40°) and increasing relative humidity (≥76%). Loop-mediated isothermal amplification and polymerase chain reaction methods revealed the highest and lowest prevalence rates, respectively, in the detection of Toxoplasma oocysts. Awareness of the health authorities and people about Toxoplasma prevalence in the soil of public places and its risk factors is of great importance to developing effective strategies to prevent infection.
Collapse
Affiliation(s)
- Bahman Maleki
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Nayebali Ahmadi
- Proteomics Research Center, Department of Medical Lab Technology, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Meysam Olfatifar
- Gastroenterology and Liver Diseases Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Gorgipour
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ali Taghipour
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amir Abdoli
- Department of Parasitology and Mycology, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Ali Khorshidi
- Department of Epidemiology, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | | | - Aliyar Mirzapour
- Innovative Medical Research Center, Department of Medical Parasitology, School of Medicine, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| |
Collapse
|
37
|
Detection of Anti- Toxoplasma gondii IgG and IgM Antibodies and Associated Risk Factors during Pregnancy in Southwest Iran. Infect Dis Obstet Gynecol 2021; 2021:5547667. [PMID: 34135564 PMCID: PMC8175175 DOI: 10.1155/2021/5547667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/18/2021] [Indexed: 11/17/2022] Open
Abstract
Background This research was aimed at evaluating the seroprevalence of acute and chronic Toxoplasma gondii (T. gondii) infection in pregnant women and related risk factors in southwest Iran. Methods In this cross-sectional study, eighty-eight pregnant women were included from October 2019 to December 2019. The presence of anti-T. gondii IgM and IgG antibodies was measured using the enzyme-linked immunosorbent assay (ELISA). In addition, a questionnaire consisting of demographic information was completed for each subject. Results The overall seroprevalence of T. gondii infection was estimated to be 34.09% (30/88). Of these, 1 (1.13%) and 29 (32.95%) samples were found positive for IgM and IgG, respectively. Regarding the risk factors, the consumption of raw/undercooked meat (P value = 0.007) and history of abortion (P value = 0.017) were significantly associated with IgG seroprevalence in pregnant women. Conclusion The results showed that the pregnant women of southwest Iran might be moderately exposed to T. gondii. Since the risk of acute T. gondii infection in this susceptible group is very important, regular screening tests to diagnose the infection are recommended before pregnancy.
Collapse
|
38
|
Neospora caninum and/or Toxoplasma gondii Seroprevalence: Vaccination against PCV2 and Muscle Enzyme Activity in Seropositive and Seronegative Pigs. Microorganisms 2021; 9:microorganisms9051097. [PMID: 34065192 PMCID: PMC8160920 DOI: 10.3390/microorganisms9051097] [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: 03/21/2021] [Revised: 05/16/2021] [Accepted: 05/18/2021] [Indexed: 11/17/2022] Open
Abstract
Neospora caninum and Toxoplasma gondii affect both humans and animals worldwide. To investigate their seroprevalence and differences in seropositivity between pigs vaccinated and unvaccinated against porcine circovirus 2 (PCV2), as well as differences in muscle enzyme activity between seropositive and seronegative pigs, blood samples were collected from 380 sows. Antibodies against T. gondii and N. caninum were detected by an indirect immunofluorescence antibody (IFA) assay, while the activities of creatine kinase (CK) and aspartate aminotransferase (AST) were biochemically assessed. Out of the 364 sows finally included in the study, 4.4%, 3.5%, and 0.5% were seropositive to T. gondii, N. caninum, or both. A significantly higher percentage of seropositivity against T. gondii and/or N. caninum in PCV2 unvaccinated pigs compared with vaccinated pigs was observed. Increased serum activities of CK and AST were detected in 71.43% and 100% of only against T. gondii (T+) and 63.64% and 90.91% of only against N. caninum (N+) seropositive sows, respectively, and were significantly higher compared to seronegative animals. T. gondii and N. caninum seropositivity, especially in presumed immunocompromised pigs, and the evidence of muscle damage highlight their importance as a zoonotic pathogen and animal model of human infection, respectively.
Collapse
|
39
|
Meat Safety from Farm to Slaughter—Risk-Based Control of Yersinia enterocolitica and Toxoplasma gondii. Processes (Basel) 2021. [DOI: 10.3390/pr9050815] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The implementation of the traditional meat safety control system has significantly contributed to increasing food safety and public health protection. However, several biological hazards have emerged in meat production, requiring a comprehensive approach to their control, as traditional methods of meat inspection at the slaughterhouse are not able to detect them. While national control programs exist for the most important meat-related hazards, similar data are still lacking for certain neglected threats, such as Yersinia enterocolitica or Toxoplasma gondii. The obstacle in controlling these hazards in the meat chain is their presence in latently infected, asymptomatic animals. Their effective control can only be achieved through systematic preventive measures, surveillance or monitoring, and antimicrobial interventions on farms and in slaughterhouses. To establish such a system, it is important to collect all relevant data on hazard-related epidemiological indicators from the meat chain, which should provide relevant guidance for interventions at the harvest and post-harvest stage. The proposed approach is expected to improve the existing system and provide many opportunities to improve food safety and public health.
Collapse
|
40
|
Hatam-Nahavandi K, Calero-Bernal R, Rahimi MT, Pagheh AS, Zarean M, Dezhkam A, Ahmadpour E. Toxoplasma gondii infection in domestic and wild felids as public health concerns: a systematic review and meta-analysis. Sci Rep 2021; 11:9509. [PMID: 33947922 PMCID: PMC8097069 DOI: 10.1038/s41598-021-89031-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 04/13/2021] [Indexed: 02/02/2023] Open
Abstract
Felidae as definitive hosts for Toxoplasma gondii play a major role in transmission to all warm-blooded animals trough oocysts dissemination. Therefore the current comprehensive study was performed to determine the global status of T. gondii infection in domestic and wild felids aiming to provide comprehensive data of interest for further intervention approaching the One Health perspective. Different databases were searched by utilizing particular key words for publications related to T. gondii infecting domestic and wild feline host species, worldwide, from 1970 to 2020. The review of 337 reports showed that the seroprevalence of T. gondii in domestic cats and wild felids was estimated in 37.5% (95% CI 34.7-40.3) (I2 = 98.3%, P < 0.001) and 64% (95% CI 60-67.9) (I2 = 88%, P < 0.0001), respectively. The global pooled prevalence of oocysts in the fecal examined specimens from domestic cats was estimated in 2.6% (95% CI 1.9-3.3) (I2 = 96.1%, P < 0.0001), and that in fecal samples from wild felids was estimated in 2.4% (95% CI 1.1-4.2) (I2 = 86.4%, P < 0.0001). In addition, from 13,252 examined soil samples in 14 reviewed studies, the pooled occurrence of T. gondii oocysts was determined in 16.2% (95% CI 7.66-27.03%). The observed high rates of anti-T. gondii antibodies seroprevalence levels and oocyst excretion frequency in the felids, along with soil (environmental) contamination with oocysts may constitute a potential threat to animal and public health, and data will result of interest in further prophylaxis programs.
Collapse
Affiliation(s)
| | - Rafael Calero-Bernal
- grid.4795.f0000 0001 2157 7667SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Mohammad Taghi Rahimi
- grid.444858.10000 0004 0384 8816Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Abdol Sattar Pagheh
- grid.411701.20000 0004 0417 4622Infectious Diseases Research Canter, Birjand University of Medical Sciences, Birjand, Iran
| | - Mehdi Zarean
- grid.411583.a0000 0001 2198 6209Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Asiyeh Dezhkam
- School of Medicine, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Ehsan Ahmadpour
- grid.412888.f0000 0001 2174 8913Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Department of Parasitology and Mycology, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
41
|
Foroutan M, Ghaffari AD, Soltani S, Majidiani H, Taghipour A, Sabaghan M. Bioinformatics analysis of calcium-dependent protein kinase 4 (CDPK4) as Toxoplasma gondii vaccine target. BMC Res Notes 2021; 14:50. [PMID: 33549149 PMCID: PMC7865105 DOI: 10.1186/s13104-021-05467-1] [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: 10/11/2020] [Accepted: 01/28/2021] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Toxoplasma gondii (T. gondii), an obligate intracellular apicomplexan parasite, could affect numerous warm-blooded animals, such as humans. Calcium-dependent protein kinases (CDPKs) are essential Ca2+ signaling mediators and participate in parasite host cell egress, outer membrane motility, invasion, and cell division. RESULTS Several bioinformatics online servers were employed to analyze and predict the important properties of CDPK4 protein. The findings revealed that CDPK4 peptide has 1158 amino acid residues with average molecular weight (MW) of 126.331 KDa. The aliphatic index and GRAVY for this protein were estimated at 66.82 and - 0.650, respectively. The findings revealed that the CDPK4 protein comprised 30.14% and 34.97% alpha-helix, 59.84% and 53.54% random coils, and 10.02% and 11.49% extended strand with SOPMA and GOR4 tools, respectively. Ramachandran plot output showed 87.87%, 8.40%, and 3.73% of amino acid residues in the favored, allowed, and outlier regions, respectively. Also, several potential B and T-cell epitopes were predicted for CDPK4 protein through different bioinformatics tools. Also, antigenicity and allergenicity evaluation demonstrated that this protein has immunogenic and non-allergenic nature. This paper presents a basis for further studies, thereby provides a fundamental basis for the development of an effective vaccine against T. gondii infection.
Collapse
Affiliation(s)
- Masoud Foroutan
- USERN Office, Abadan Faculty of Medical Sciences, Abadan, Iran
| | - Ali Dalir Ghaffari
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, P. O. Box 14115-111, Tehran, Iran.
| | | | - Hamidreza Majidiani
- Zoonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran.
| | - Ali Taghipour
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, P. O. Box 14115-111, Tehran, Iran
| | | |
Collapse
|
42
|
Lopes LM, Minervino AHH, Monger SDGB, Soares HS, Portela JM, Ferreira JIGDS, Gennari SM, Pereira WLA. Occurrence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies in pigs in the State of Pará, Brazil. ACTA ACUST UNITED AC 2021; 30:e017520. [PMID: 33533795 DOI: 10.1590/s1984-296120201085] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/16/2020] [Indexed: 11/21/2022]
Abstract
We investigated the occurrence of Toxoplasma gondii and Neospora caninum antibodies in pigs raised in the Northeast of Pará, Brazil. At Study I, convenience sampled 151 pigs at two slaughterhouses, with and without state inspection; and Study II, which assessed 159 pigs with probabilistic sampling from nine pig farms. Serological analysis was performed using indirect fluorescent antibody test for T. gondii and N. caninum with a cutoff of 64 and 50, respectively. Overall, 6.77% pigs were seropositive for T. gondii and 5.16% for N. caninum. In Study I, pigs slaughtered with and without state inspection presented similar occurrence for both coccidia (p>0.05). Study II found an association between N. caninum seropositivity and sludge discarded into the soil, feeding pigs with animal-based protein, subsistence system, and absence of nipple drinkers. No association was found for T. gondii. Pigs from Pará are a potential source of T. gondii infection to humans. To our best knowledge, this is the first study to report anti-N. caninum antibodies in the serum of pigs in Pará State, Brazilian Amazon.
Collapse
Affiliation(s)
| | | | | | - Herbert Sousa Soares
- Programa de Pós-graduação em Saúde Única e Bem-Estar Animal, Universidade Santo Amaro - UNISA, São Paulo, SP, Brasil
| | - Juliana Machado Portela
- Laboratório de Sanidade Animal - LARSANA, Universidade Federal do Oeste do Pará - UFOPA, Santarém, PA, Brasil
| | | | - Solange Maria Gennari
- Programa de Pós-graduação em Saúde Única e Bem-Estar Animal, Universidade Santo Amaro - UNISA, São Paulo, SP, Brasil.,Faculdade de Medicina Veterinária e Zootecnia - FMVZ, Universidade de São Paulo - USP, São Paulo, SP, Brasil
| | - Washington Luiz Assunção Pereira
- Programa de Pós-graduação em Saúde e Produção Animal na Amazônia, Universidade Federal Rural da Amazônia - UFRA, Belém, PA, Brasil
| |
Collapse
|
43
|
Daraei H, Oliveri Conti G, Sahlabadi F, Thai VN, Gholipour S, Turki H, Fakhri Y, Ferrante M, Moradi A, Mousavi Khaneghah A. Prevalence of Cryptosporidium spp. in water: a global systematic review and meta-analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:9498-9507. [PMID: 33150505 DOI: 10.1007/s11356-020-11261-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
Cryptosporidium spp., as a genus of protozoan intestinal parasites, is recognized as responsible for cryptosporidiosis. The present study was conducted to provide an overview of the prevalence of Cryptosporidium based on water. In this regard, some databases such as Scopus, PubMed, Embase, and Web of Science were screened in order to retrieve the related citations from 1 January 1983 to 10 September 2019. The pooled prevalence of Cryptosporidium spp. was calculated by using a random effect model (REM) based on defined subgroups, including countries, water type, treatment conditions (treated and untreated), economic condition, World Health Organization (WHO) regions, and method of detection. In contrast, this index for treated and untreated water was 25.7% and 40.1%, respectively. Also, the overall prevalence of Cryptosporidium spp. among all water types was defined as 36 (95% CI: 31.4-40.7). The rank order of prevalence of Cryptosporidium spp. based on water type was wastewater (46.9%) > surface water (45.3%) > raw water (31.6%) > drinking water (25.5%) > reservoirs water (24.5%) > groundwater (18.8%) > swimming pool water (7.5%) > marine water (0.20%). Identifying the key contributing factors to Cryptosporidium spp. survival can help provide solutions at both local and global scales.
Collapse
Affiliation(s)
- Hasti Daraei
- Department of Environmental Health Engineering, School of Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Gea Oliveri Conti
- Environmental and Food Hygiene Laboratories (LIAA) of Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", Hygiene and Public Health, University of Catania, Catania, Italy
| | - Fatemeh Sahlabadi
- Food Health Research Center, Department of Environmental Health Engineering, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Van Nam Thai
- Ho Chi Minh City University of Technology (HUTECH), 475A Dien Bien Phu, Ward 25, Binh Thanh District, Ho Chi Minh City, Vietnam
| | - Sahar Gholipour
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Habibollah Turki
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Yadolah Fakhri
- Food Health Research Center, Department of Environmental Health Engineering, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
| | - Margherita Ferrante
- Environmental and Food Hygiene Laboratories (LIAA) of Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", Hygiene and Public Health, University of Catania, Catania, Italy.
| | - Ali Moradi
- Occupational Health and Safety Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Amin Mousavi Khaneghah
- Department of Food Science, Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| |
Collapse
|
44
|
Flores CA, Jimenez J, Gomez-Puerta LA, Palacios C, O'Neal SE, Muro C, Gonzalez AE, Gilman RH, Calderón M. Seroprevalence of Toxoplasma gondii in free-range pigs in northern Peru. Vet Parasitol Reg Stud Reports 2021; 23:100533. [PMID: 33678386 PMCID: PMC9125792 DOI: 10.1016/j.vprsr.2021.100533] [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: 09/24/2020] [Revised: 01/02/2021] [Accepted: 01/13/2021] [Indexed: 11/21/2022]
Abstract
Toxoplasma gondii is an important foodborne pathogen worldwide, with undercooked meat as the main source of human transmission. In this study, we determined the seroprevalence of T. gondii in free-range pigs from two adjacent villages in the Tumbes region of northern Peru, El Tutumo and Nuevo Progreso. We randomly selected 100 pig serum samples collected during a prior study and processed these using Western Blot to detect IgG anti-T. gondii antibodies. Results indicated a prevalence of 32% (32/100) to T. gondii in pigs. Free-ranging pigs from northern Peru represent a substantial risk for transmission of T. gondii to humans.
Collapse
Affiliation(s)
- Carlos Alonso Flores
- Laboratorio de Investigación y Desarrollo, Laboratorio de Investigación en Enfermedades Infecciosas, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Juan Jimenez
- Facultad de Ciencias Biológicas, Laboratorio de Parasitología en Fauna Silvestre y Zoonosis, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Luis A Gomez-Puerta
- School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru; Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru.
| | - Claudia Palacios
- Laboratorio de Investigación y Desarrollo, Laboratorio de Investigación en Enfermedades Infecciosas, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Seth E O'Neal
- Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru; School of Public Health, Oregon Health & Science University, Portland, OR, USA; Portland State University, Portland, OR, USA
| | - Claudio Muro
- Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Armando E Gonzalez
- School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru; Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Robert H Gilman
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Maritza Calderón
- Laboratorio de Investigación y Desarrollo, Laboratorio de Investigación en Enfermedades Infecciosas, Universidad Peruana Cayetano Heredia, Lima, Peru
| |
Collapse
|
45
|
Wei XY, Gao Y, Lv C, Wang W, Chen Y, Zhao Q, Gong QL, Zhang XX. The global prevalence and risk factors of Toxoplasma gondii among foxes: A systematic review and meta-analysis. Microb Pathog 2020; 150:104699. [PMID: 33383150 DOI: 10.1016/j.micpath.2020.104699] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/25/2020] [Accepted: 12/11/2020] [Indexed: 12/21/2022]
Abstract
Toxoplasma gondii is one of the most successful intracellular protozoan parasites in the world, which can infect most warm-blooded animals including foxes in the world and cause toxoplasmosis. This is the first meta-analysis to assess the overall prevalence and potential risk factors of T. gondii among foxes in the world. Relevant studies were comprehensively collected from ScienceDirect, Springer-Link, PubMed, VIP Chinese Journal Databases (VIP), WanFang, and China National Knowledge Infrastructure (CNKI) databases. The random-effect model was used to calculate pooled prevalence with 95% confidence intervals (CI) and analyzed data were from 20 countries. The pooled T. gondii prevalence in foxes was estimated to be 39.6%. T. gondii has the highest prevalence in North America (51.2%), and lowest in Asia (8.3%). The prevalence in the sub-group after 2006 (44.7%) was lower than 2006 or before (48.5%). The prevalence in female foxes was 46.1%, which was higher than that in male foxes (19.7%). In species subgroup, red fox has the highest prevalence (46.8%). Wild foxes have a higher rate of infection (40.8%) than captive foxes (8.4%). Genotype Ⅱ of T. gondii is the most prevalent in foxes. We also evaluated the effects of geographical and climate variables on pooled prevalence of T. gondii in foxes. Our research indicated that toxoplasmosis widely existed in the world. The investigation of T. gondii infection in wild animals can provide an estimate of environmental pollution and T. gondii circulation in the ecosystem. It is essential for us to prevent and control T. gondii infection in foxes in order to reduce the risk of human infection.
Collapse
Affiliation(s)
- Xin-Yu Wei
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province, 163319, PR China
| | - Yang Gao
- Chongqing Auleon Biological Co Ltd, Rongchang, Chongqing, 402460, PR China; The Key Sericultural Laboratory of Agricultural Ministry, College of Biotechnology, Southwest University, Chongqing, 400715, PR China
| | - Chuang Lv
- Shandong New Hope Liuhe Group Co Ltd, Qingdao, 266100, PR China
| | - Wei Wang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province, 163319, PR China
| | - Yu Chen
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province, 163319, PR China
| | - Quan Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China
| | - Qing-Long Gong
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China.
| | - Xiao-Xuan Zhang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province, 163319, PR China; College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, PR China
| |
Collapse
|
46
|
Soltani S, Kahvaz MS, Soltani S, Maghsoudi F, Foroutan M. Seroprevalence and associated risk factors of Toxoplasma gondii infection in patients undergoing hemodialysis and healthy group. BMC Res Notes 2020; 13:551. [PMID: 33287882 PMCID: PMC7720589 DOI: 10.1186/s13104-020-05396-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 11/24/2020] [Indexed: 01/30/2023] Open
Abstract
Objectives In this study, the seroprevalence of anti-Toxoplasma gondii (T. gondii) specific antibodies in patients undergoing hemodialysis compared to the control group were evaluated. In this case–control study, 200 hemodialysis patients (HDP) and 100 healthy controls were participated. The specific antibodies (IgG/IgM) in both groups were tested using enzyme-linked immunosorbent assay (ELISA) method. A structured questionnaire containing some demographic information was completed for each person in case and control groups. Results The overall seroprevalence of T. gondii infection was 49.5% (99/200) and 23.0% (23/100) in the case and control groups, respectively. There was a significant association between seroprevalence of T. gondii infection and contact with cats (P < 0.001), consumption of raw/undercooked meat (P = 0.01), and source of drinking water (P = 0.001) in the hemodialysis patients. Also, in the control subjects, there were a significant association between consumption of raw/undercooked meat (P = 0.04) and source of drinking water (P = 0.001) with T. gondii infection. The findings showed a high seroprevalence of T. gondii infection in HDP compared with healthy controls; thus, we recommend the regular screening programs for T. gondii infection in this susceptible group.
Collapse
Affiliation(s)
| | | | - Sheyda Soltani
- USERN Office, Abadan Faculty of Medical Sciences, Abadan, Iran
| | | | - Masoud Foroutan
- USERN Office, Abadan Faculty of Medical Sciences, Abadan, Iran.
| |
Collapse
|
47
|
Talaie H, Hosseini SM, Nazari M, Fakhri Y, Mousavizadeh A, Vatanpour H, Firoozfar A. Is there any potential management against COVID-19? A systematic review and meta-analysis. Daru 2020; 28:765-777. [PMID: 32812187 PMCID: PMC7434334 DOI: 10.1007/s40199-020-00367-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 08/07/2020] [Indexed: 12/19/2022] Open
Abstract
PURPOSE A recent survey has shown that the COVID-19 pandemic has culminated in dramatical and critical treatment particularly in acute infected patients. In fact, this systematic review-meta-analysis was directly pertained to estimation at the efficient value of some clinical managements to confront the COVID-19 infection. METHODS Pubmed, Embase, Scopus, Cochrane, and Scholar databases were searched from inception to July 1, 2020, to identify studies reporting the current treatment process and medications (e.g. hydroxychloroquine, antiviral therapy, convalescent plasma, and immunomodulatory agents) for COVID-19. A random-effects model meta-analysis was performed to calculate the relative risk (RR) with 95% confidence intervals (CI). The outcomes of this study were the frequency of negative conversion cases, clinical improvements, mechanical ventilation demand, intensive care unit (ICU) entry, and mortality. The standard treatment refers to the published guidelines and specialist experience which varies in different articles, and the proposed treatment refers to the kind of interest suggested in the included studies. RESULTS A number of 45 articles met the eligibility criteria (out of 6793 articles). Among them, 26 articles involving 3263 patients were included in quantitative analysis. Anti-COVID-19 interventions could significantly increase clinical improvement (RR 1.17, 95% CI 1.08-1.27; I2 = 49.8%) and reduce the mortality rate (RR 0.58, 95% CI 0.35-0.95; I2 = 74.8%). Although in terms of negative conversion, ICU entry, and mechanical ventilation demand, clinical intervention had no beneficial effect. The clinical effect of immunomodulatory agents (especially tocilizumab and anakinra) was noticeable compared to other medications with RR of 0.22 (95% CI 0.09-0.53; I2 = 40.9%) for mortality and 1.25 (95% CI 1.07-1.46; I2 = 45.4%) for clinical improvement. Moreover, Antivirals (RR 1.13, 95% CI 1.01-1.26; I2 = 47.0%) and convalescent plasma therapy (RR 1.41, 95% CI 1.01-1.98; I2 = 66.6%) had significant beneficial effects on clinical improvement. CONCLUSION Based on our findings, all the included interventions significantly declined the mortality and enhanced clinical improvements with no effect on negative conversion and mechanical ventilation demand. Especially, immunomodulators and plasma therapy showed favorable outcomes. An evaluation on the efficacy of proposed treatment against COVID-19.
Collapse
Affiliation(s)
- Haleh Talaie
- Toxicological Research Center, Loghman-Hakim Hospital, Shahid Beheshti University of Medical Sciences, Kamali Avenue, south Karegar Street, Tehran, 1333631151, Iran.
- Department of Infectious and Tropical diseases, Loghman-Hakim Hospital, Shahid Behesht University of Medical Sciences, Tehran, Iran.
| | - Sayed Masoud Hosseini
- Departments of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Nazari
- Toxicological Research Center, Loghman-Hakim Hospital, Shahid Beheshti University of Medical Sciences, Kamali Avenue, south Karegar Street, Tehran, 1333631151, Iran
| | - Yadollah Fakhri
- Infectious and Tropical Diseases Research Center, Hormozgan Heath Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Atieh Mousavizadeh
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hossein Vatanpour
- Departments of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Firoozfar
- Anatomy and Physiology Department, Gharmsar University, Gharmsar, Iran
| |
Collapse
|
48
|
Atabati H, Kassiri H, Shamloo E, Akbari M, Atamaleki A, Sahlabadi F, Linh NTT, Rostami A, Fakhri Y, Khaneghah AM. The association between the lack of safe drinking water and sanitation facilities with intestinal Entamoeba spp infection risk: A systematic review and meta-analysis. PLoS One 2020; 15:e0237102. [PMID: 33147225 PMCID: PMC7641376 DOI: 10.1371/journal.pone.0237102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Intestinal protozoa infections are responsible for considerable morbidity and mortality, especially where the exposed population suffers from a lack of drinking water and sanitation facilities. In this study, the association between the lack of safe drinking water and sanitation (toilet) facilities with intestinal Entamoeba spp infection in the children (5-11 years), adult (18-55 years), and all age (5-55 years) were assessed. For this purpose, some of the international databases such as Scopus, PubMed, Web of Science, and Embase were screened to up to 7 June 2019 in order to retrieve the related citations. Also, the pooled odds ratios (ORs) following 95% confidence intervals (CIs) were calculated using a random-effects model. Twenty-nine articles with 36 studies were included while the OR extracted or calculated by using 2 × 2 contingency tables. However, the ingestion of contaminated water insignificantly can increase the odds ratio (OR) of Entamoeba spp infection (OR 1.01, (95% confidence interval [CI] 0.58 to 1.43), no access to sanitation (toilet) facilities significantly can increase odds of Entamoeba spp infection (OR 1.18, 95% CI 1.05 to 1.32). The meta-regression analysis showed that over time, odds of intestinal Entamoeba spp infection increased in both lack of safe drinking water (Coefficient: 3.24, P-value < 0.01) and sanitation (toilet) facilities (Coefficient: 2.36, P-value < 0.05) subgroups. Considering the findings, lack of safe drinking water resulted in a further increase in intestinal Entamoeba spp infection among adult (OR: 2.76), children (OR = 0.57) and all age groups (OR: 1.50), and also lack of sanitation (toilet) facilities resulted in further increase intestinal Entamoeba spp infection in children (OR: 1.06), adult (OR: 1.26) and all age (OR: 1.16). In this context, the lack of safe drinking water and sanitation facilities (toilet) was associated with a high risk of intestinal Entamoeba spp infection. Further attempts to providing public health facilities can control the prevalence of intestinal Entamoeba spp.
Collapse
Affiliation(s)
- Hamid Atabati
- Department of the environment faculty of fishery and environment, Gorgan University of agriculture and natural resources sciences, Golestan Province, Gorgan, Iran
| | - Hamid Kassiri
- Department of Medical Entomology, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ehsan Shamloo
- Noncommunicable Diseases Research Center, Department of Food Science and Technology, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Mitra Akbari
- Amiralmomenin Hospital, School of Medicine, Guilan University of Medical Science, Rasht, Iran
| | - Ali Atamaleki
- Department of Environmental Health Engineering, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Sahlabadi
- Department of Environmental Health Engineering, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nguyen Thi Thuy Linh
- Institute of Research and Development, Duy Tan University, Danang, Vietnam
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, Vietnam
| | - Ali Rostami
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Yadolah Fakhri
- Social Determinants in Health Promotion Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Amin Mousavi Khaneghah
- Department of Food Science, Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| |
Collapse
|
49
|
Sgroi G, Viscardi M, Santoro M, Borriello G, D'Alessio N, Boccia F, Pacifico L, Fioretti A, Veneziano V, Fusco G. Genotyping of Toxoplasma gondii in wild boar (Sus scrofa) in southern Italy: Epidemiological survey and associated risk for consumers. Zoonoses Public Health 2020; 67:805-813. [PMID: 32885615 DOI: 10.1111/zph.12762] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 07/02/2020] [Accepted: 07/27/2020] [Indexed: 01/31/2023]
Abstract
Toxoplasma gondii is a widespread protozoan parasite (phylum Apicomplexa), which causes a zoonotic parasitic disease, known as toxoplasmosis. The aim of this study was to evaluate the occurrence and genotypes of T. gondii in wild boars of southern Italy and thus to assess the risk of infection for consumers. The boars were inspected during the hunting season within the regional project 'Wild Boar Emergency Plan in Campania', and molecular analyses were performed on 338 boars analysing a total number of 884 matrices (263 brains, 310 hearts and 311 masseter muscles). Toxoplasma gondii was detected in 134 out of 338 boars (39.6%). No significant statistical difference between genders was found (χ2 = 0.15 p = .70). The prevalence was 47.1%, 39.3% and 39.2% in piglets, yearlings and adults, respectively (χ2 = 0.41; p = .81). The highest prevalence of T. gondii was found in masseter muscles (74/311, 23.8%), followed by the heart (70/310, 22.6%) and brain (58/263, 22.0%), respectively. Microsatellite (MS) analysis of 11 samples revealed eleven T. gondii genotypes (nine atypical, one belonging to type II one to type III). Most of the genotypes found were thus atypical and may be virulent in humans. Hierarchical clustering analysis showed the presence of three distinct clusters, with the majority of atypical genotypes in the GII-GIII cluster. The high prevalence of infection in masseters highlights the potential risk for public health, considering that this muscle is commonly used to prepare raw meat products ('guanciale' and sausages), which may be a source of T. gondii infection in humans. Wild boars may act as an interface role between wildlife, livestock and humans. Our data highlight the urgent need to minimize the risk of infection for animals and humans by setting up a surveillance programme and preventive strategies in a One Health approach to wildlife species.
Collapse
Affiliation(s)
- Giovanni Sgroi
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy.,Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano, Italy
| | - Maurizio Viscardi
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy
| | | | - Giorgia Borriello
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy
| | - Nicola D'Alessio
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.,Osservatorio Faunistico Venatorio Regionale, Regione Campania, Italy
| | - Federica Boccia
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy
| | - Laura Pacifico
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - Alessandro Fioretti
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - Vincenzo Veneziano
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy.,Osservatorio Faunistico Venatorio Regionale, Regione Campania, Italy
| | - Giovanna Fusco
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy
| |
Collapse
|
50
|
Taghipour A, Olfatifar M, Foroutan M, Bahadory S, Malih N, Norouzi M. Global prevalence of Cryptosporidium infection in rodents: A systematic review and meta-analysis. Prev Vet Med 2020; 182:105119. [PMID: 32823254 DOI: 10.1016/j.prevetmed.2020.105119] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/08/2020] [Accepted: 08/08/2020] [Indexed: 11/17/2022]
Abstract
The One-Health approach implies that the health of people is connected to the health of animals and the environment. Rodents, which are abundant and widespread, have been considered the major reservoirs of Cryptosporidium infection in humans and other animals. However, there is a paucity of information about global patterns of occurrence of Cryptosporidium in rodents. This systematic review and meta-analysis aimed to estimate the pooled global prevalence of Cryptosporidium infection and associated risk factors in rodents. International databases (PubMed, Web of Science, Scopus, and Google scholar) were systematically searched to identify relevant studies. A random-effects meta-analysis model was used to estimate the overall and the subgroup-pooled prevalence of Cryptosporidium across studies, and the variance between studies (heterogeneity) were quantified by I2 index. The data were classified according to WHO-region, type of diagnostic methods, different kinds of rodents, and specific risk factors, including geographical and climate parameters. Eighty-four articles (including 92 datasets), from 29 countries met eligibility criteria for analysis. The pooled global prevalence (95% CI) of Cryptosporidium infection in rodents was 17% (13-20%), being highest in North American and Caribbean regions 27% (16-40%) and lowest in South American 5% (0-16%) countries. Considering the detection methods, the pooled prevalence was estimated to be 25% (13-39%) using coproantigen detection methods, 17% (13-23%) using molecular detection methods, and 14% (9-20%) using microscopic detection methods. The highest prevalence of Cryptosporidium was found in muskrats 47% (27-68%), while Meriones persicus 1% (0-3%) had the lowest prevalence. These results emphasize the role of rodents as reservoir hosts for human-infecting Cryptosporidium. This highlights the need for an increased focus on implementing affordable, appropriate control programs to reduce the public health threat of cryptosporidiosis as a zoonosis of global importance.
Collapse
Affiliation(s)
- Ali Taghipour
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Meysam Olfatifar
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Saeed Bahadory
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Narges Malih
- Social Determinants of Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojtaba Norouzi
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| |
Collapse
|