1
|
Basset C, Gos ML, Steffen KD, Helman E, Fitte B, Olaizola PL, Unzaga JM. Seroprevalence of Toxoplasma gondii and Neospora caninum in family farming goats from the Luracatao Valley, Salta, Argentina. Vet Parasitol Reg Stud Reports 2024; 49:100992. [PMID: 38462298 DOI: 10.1016/j.vprsr.2024.100992] [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: 12/04/2023] [Revised: 01/12/2024] [Accepted: 01/21/2024] [Indexed: 03/12/2024]
Abstract
Toxoplasma gondii and Neospora caninum infections are important causes of abortion in ruminants. The objective of this study was to determine the seroprevalence and frequency of T. gondii and N. caninum titers in goats raised by family farmers in the Luracatao Valley of Salta province, Argentina. A total of 259 serum samples were collected from adult goats in 42 family farms in nine communities and tested for indirect fluorescent antibody test (IFAT, cut-off 1:100). Seroprevalences were 34.36% (89/259) for T. gondii and 64.09% (166/259) for N. caninum. Co-infection was found in 25.86% (67/259) of the goats tested. The most frequent IFAT titer of T. gondii found was 100 (23.93%; 62/259), and only 2% (5/259) of the goats presented titer 800. For N. caninum, the most frequent titers were 100 (25.86%; 67/259), and titers 200 (20.46%; 53/259) and 400 (14.61%, 38/259). The titers found for T. gondii could suggest a chronic infection in goats, being of importance for the region due to meat consumption and cheese production. The elevated seroprevalence of N. caninum identified in this study may be attributed to the community-specific dog population and the close interaction between dogs and goats, despite the absence of a statistically significant association. Subsequent research is warranted to assess the productive implications of T. gondii and N. caninum.
Collapse
Affiliation(s)
- Carina Basset
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Cátedra de Parasitología y Enfermedades Parasitarias Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas (CONICET), Ciudad Autónoma de Buenos Aires (C1425FQB), Argentina.
| | - María Laura Gos
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Cátedra de Parasitología y Enfermedades Parasitarias Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina
| | - Kevin D Steffen
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Cátedra de Parasitología y Enfermedades Parasitarias Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas (CONICET), Ciudad Autónoma de Buenos Aires (C1425FQB), Argentina
| | - Elisa Helman
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Cátedra de Parasitología y Enfermedades Parasitarias Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas (CONICET), Ciudad Autónoma de Buenos Aires (C1425FQB), Argentina; Grupo de Bioestadística Aplicada- Instituto de Cálculos, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Bruno Fitte
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas (CONICET), Ciudad Autónoma de Buenos Aires (C1425FQB), Argentina
| | - Paula L Olaizola
- Instituto de Investigación y Desarrollo Tecnológico para la Agricultura Familiar Región Pampeana, Instituto Nacional de Tecnología Agropecuaria (INTA), La Plata 1900, Buenos Aires, Argentina
| | - Juan Manuel Unzaga
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina; Cátedra de Parasitología y Enfermedades Parasitarias Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Buenos Aires, Argentina
| |
Collapse
|
2
|
de Oliveira UV, de Magalhães VCS, Costa SCL, Allaman IB, Munhoz AD. Fluctuations of antibody serum titers for Toxoplasma gondii and Neospora caninum in naturally infected crossbred cows during gestation. BRAZILIAN JOURNAL OF VETERINARY MEDICINE 2023; 45:e003023. [PMID: 38162819 PMCID: PMC10756150 DOI: 10.29374/2527-2179.bjvm003023] [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: 07/20/2023] [Accepted: 12/08/2023] [Indexed: 01/03/2024] Open
Abstract
This study aimed to assess the fluctuations of antibody serum titers for Toxoplasma gondii and Neospora caninum in naturally infected crossbred cows during gestation and to investigate transplacental transmission of T. gondii; 51 cows were monitored during pregnancy by monthly serologic testing by indirect fluorescent antibody test. 33 cows were seronegative for both N. caninum and T. gondii, 10 were seropositive only for N. caninum, 5 were seropositive only for T. gondii, and 3 were seropositive for both N. caninum and T. gondii. In both protozoan infections, great variation in antibody levels in pregnant cows was observed, and there was significant increase (p<0.05) in the comparison between the averages of serological titration per trimester. There was a significant correlation (p<0.05) between month and probability of seropositivity for T. gondii. We conclude that pregnancy influences antibody titers of crossbred cows naturally infected with N. caninum and/or T. gondii, and that serologic testing for T. gondii in pregnant cows from the sixth month of gestation onward may decrease the number of false negative results.
Collapse
Affiliation(s)
| | | | - Sônia Carmen Lopo Costa
- Veterinarian, Departamento de Agricultura e Meio Ambiente, Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, Brasil.
| | - Ivan Bezerra Allaman
- Zootechnics, Departamento de Ciências Exatas e Tecnológicas, UESC, Ilhéus, BA, Brasil.
| | - Alexandre Dias Munhoz
- Veterinarian, Departamento de Agricultura e Meio Ambiente, Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, Brasil.
| |
Collapse
|
3
|
Mazwi KD, Kolo FB, Jaja IF, Bokaba RP, Ngoshe YB, Hassim A, Neves L, van Heerden H. Serological Evidence and Coexposure of Selected Infections among Livestock Slaughtered at Eastern Cape Abattoirs in South Africa. Int J Microbiol 2023; 2023:8906971. [PMID: 38077996 PMCID: PMC10708957 DOI: 10.1155/2023/8906971] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/11/2023] [Accepted: 11/14/2023] [Indexed: 05/08/2024] Open
Abstract
Zoonotic infections were investigated in a cross-sectional study on asymptomatic livestock slaughtered in abattoirs in the Eastern Cape. Antibodies against Brucella spp., Coxiella burnetii, Toxoplasma gondii, and the coexposure were investigated in sera using serological tests. A total of 565 animals comprising of 280 cattle, 200 sheep, and 85 pigs were screened using RBT, iELISA, CFT, and AMOS-PCR. The Mast® Toxoreagent test and iELISA were used for the detection of T. gondii and C. burnetii, respectively. The Brucella positivity based on at least two tests was 4.3% (12/280), 1.0% (2/200), and 0.0% (0/85) in cattle, sheep, and pigs, respectively. Toxoplasma gondii seropositivity of 37.90% (106/280), 1.50% (3/200), and 7.10% (6/85) was observed in cattle, sheep, and pigs, respectively. Coxiella burnetii seropositivity of 26.40% (74/280), 15.00% (30/200), and 2.40% (2/85) was observed in cattle, sheep, and pigs, respectively. Coexposure was detected in cattle for positivity against C. burnetii and T. gondii 40.54%, Brucella spp. and T. gondii 1.35%, and Brucella spp. and C. burnetii 4.05%. Coexposure for Brucella spp., C. burnetii, and T. gondii 4.05% was detected in cattle. Coexposure of Brucella spp. and C. burnetii 6.67% was detected in sheep. The AMOS-PCR identified B. abortus in cattle and a mixed infection of B. abortus and B. melitensis in sheep in 64.71% seropositive samples. To our knowledge, the coexposure of Brucella spp., T. gondii, and C. burnetii in cattle has not been reported. Coexposure of Brucella spp. and C. burnetii in cattle and sheep is significant as it results in reproductive losses and constitutes an infectious risk to humans. The detection of antibodies against multiple zoonotic infections in livestock from abattoirs has implications for public health.
Collapse
Affiliation(s)
- K. D. Mazwi
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Pretoria, South Africa
| | - F. B. Kolo
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Pretoria, South Africa
| | - I. F. Jaja
- Department of Livestock and Pasture Science, Faculty of Science and Agriculture, University of Fort Hare, Alice, South Africa
- Department of Agriculture and Animal Health, University of South Africa, Roodepoort, Johannesburg, South Africa
| | - R. P. Bokaba
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Pretoria, South Africa
| | - Y. B. Ngoshe
- Epidemiology Section, Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Pretoria, South Africa
| | - A. Hassim
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Pretoria, South Africa
| | - L. Neves
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Pretoria, South Africa
- Centro de Biotecnologia, Universidade Eduardo Mondlane, Maputo, Mozambique
| | - H. van Heerden
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Pretoria, South Africa
| |
Collapse
|
4
|
Augendre L, Costa D, Escotte-Binet S, Aubert D, Villena I, Dumètre A, La Carbona S. Surrogates of foodborne and waterborne protozoan parasites: A review. Food Waterborne Parasitol 2023; 33:e00212. [PMID: 38028241 PMCID: PMC10661733 DOI: 10.1016/j.fawpar.2023.e00212] [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: 08/03/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
The protozoan parasites Cryptosporidium parvum, Cyclospora cayetanensis, and Toxoplasma gondii are major causes of waterborne and foodborne diseases worldwide. The assessment of their removal or inactivation during water treatment and food processing remains challenging, partly because research on these parasites is hindered by various economical, ethical, methodological, and biological constraints. To address public health concerns and gain new knowledge, researchers are increasingly seeking alternatives to the use of such pathogenic parasites. Over the past few decades, several non-pathogenic microorganisms and manufactured microparticles have been evaluated as potential surrogates of waterborne and foodborne protozoan parasites. Here, we review the surrogates that have been reported for C. parvum, C. cayetanensis, and T. gondii oocysts, and discuss their use and relevance to assess the transport, removal, and inactivation of these parasites in food and water matrices. Biological surrogates including non-human pathogenic Eimeria parasites, microorganisms found in water sources (anaerobic and aerobic spore-forming bacteria, algae), and non-biological surrogates (i.e. manufactured microparticles) have been identified. We emphasize that such surrogates have to be carefully selected and implemented depending on the parasite and the targeted application. Eimeria oocysts appear as promising surrogates to investigate in the future the pathogenic coccidian parasites C. cayetanensis and T. gondii that are the most challenging to work with.
Collapse
Affiliation(s)
- Laure Augendre
- EA 7510 ESCAPE Epidemiosurveillance and Circulation of Parasites in the Environment, University of Reims Champagne Ardennes, Faculty of Medicine, SFR Cap Santé Fed 4231, 51 Rue Cognacq Jay, 51096 Reims Cedex, France
- ACTALIA Food Safety, 310 Rue Popielujko, 50000, Saint-Lô, France
| | - Damien Costa
- EA 7510 ESCAPE Epidemiosurveillance and Circulation of Parasites in the Environment, University of Rouen Normandie, University Hospital of Rouen, 22 Boulevard Gambetta, 76183 Rouen Cedex, France
| | - Sandie Escotte-Binet
- EA 7510 ESCAPE Epidemiosurveillance and Circulation of Parasites in the Environment, University of Reims Champagne Ardennes, Faculty of Medicine, SFR Cap Santé Fed 4231, 51 Rue Cognacq Jay, 51096 Reims Cedex, France
| | - Dominique Aubert
- EA 7510 ESCAPE Epidemiosurveillance and Circulation of Parasites in the Environment, University of Reims Champagne Ardennes, Faculty of Medicine, SFR Cap Santé Fed 4231, 51 Rue Cognacq Jay, 51096 Reims Cedex, France
| | - Isabelle Villena
- EA 7510 ESCAPE Epidemiosurveillance and Circulation of Parasites in the Environment, University of Reims Champagne Ardennes, Faculty of Medicine, SFR Cap Santé Fed 4231, 51 Rue Cognacq Jay, 51096 Reims Cedex, France
| | - Aurélien Dumètre
- Aix-Marseille University, IRD, AP-HM, IHU Méditerranée Infection, UMR Vectors - Tropical and Mediterranean Infections, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
| | | |
Collapse
|
5
|
Wang Z, Li J, Yang Q, Sun X. Global Proteome-Wide Analysis of Cysteine S-Nitrosylation in Toxoplasma gondii. Molecules 2023; 28:7329. [PMID: 37959749 PMCID: PMC10649196 DOI: 10.3390/molecules28217329] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/17/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Toxoplasma gondii transmits through various routes, rapidly proliferates during acute infection and causes toxoplasmosis, which is an important zoonotic disease in human and veterinary medicine. T. gondii can produce nitric oxide and derivatives, and S-nitrosylation contributes to their signaling transduction and post-translation regulation. To date, the S-nitrosylation proteome of T. gondii remains mystery. In this study, we reported the first S-nitrosylated proteome of T. gondii using mass spectrometry in combination with resin-assisted enrichment. We found that 637 proteins were S-nitrosylated, more than half of which were localized in the nucleus or cytoplasm. Motif analysis identified seven motifs. Of these motifs, five and two contained lysine and isoleucine, respectively. Gene Ontology enrichment revealed that S-nitrosylated proteins were primarily located in the inner membrane of mitochondria and other organelles. These S-nitrosylated proteins participated in diverse biological and metabolic processes, including organic acid binding, carboxylic acid binding ribose and phosphate biosynthesis. T. gondii S-nitrosylated proteins significantly contributed to glycolysis/gluconeogenesis and aminoacyl-tRNA biosynthesis. Moreover, 27 ribosomal proteins and 11 microneme proteins were identified as S-nitrosylated proteins, suggesting that proteins in the ribosome and microneme were predominantly S-nitrosylated. Protein-protein interaction analysis identified three subnetworks with high-relevancy ribosome, RNA transport and chaperonin complex components. These results imply that S-nitrosylated proteins of T. gondii are associated with protein translation in the ribosome, gene transcription, invasion and proliferation of T. gondii. Our research is the first to identify the S-nitrosylated proteomic profile of T. gondii and will provide direction to the ongoing investigation of the functions of S-nitrosylated proteins in T. gondii.
Collapse
Affiliation(s)
- Zexiang Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (J.L.); (X.S.)
| | | | | | | |
Collapse
|
6
|
Rabaan AA, Uzairue LI, Alfaraj AH, Halwani MA, Muzaheed, Alawfi A, Alshengeti A, Al Kaabi NA, Alawad E, Alhajri M, Alwarthan S, Alshukairi AN, Almuthree SA, Alsubki RA, Alshehri NN, Alissa M, Albayat H, Zaidan TI, Alagoul H, Fraij AA, Alestad JH. Seroprevalence, Risk Factors and Maternal-Fetal Outcomes of Toxoplasma gondii in Pregnant Women from WHO Eastern Mediterranean Region: Systematic Review and Meta-Analysis. Pathogens 2023; 12:1157. [PMID: 37764965 PMCID: PMC10537388 DOI: 10.3390/pathogens12091157] [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: 03/17/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND The protozoan parasite Toxoplasma gondii may cause serious illness in the immunocompromised. The Toxoplasma gondii seropositive prevalence in pregnant women in WHO Eastern Mediterranean Region countries is inconsistent in the literature and it is associated with outcomes that have not be fully elucidated, hence the need for a better understanding of the pooled seroprevalence and associated maternal and fetal outcomes. OBJECTIVE The objective was to conduct a systematic literature review and determine the pooled prevalence of WHO Eastern Mediterranean Regional countries' pregnant women's seroprevalence of Toxoplasma gondii and the maternal-fetal outcomes. METHODS This quantitative study examined WHO Eastern Mediterranean countries' maternal-fetal outcomes and Toxoplasma gondii prevalence in pregnant women. The targeted population was pregnant women, while the primary outcome was seropositivity of Toxoplasma gondii, while other outcomes such as maternal and fetal associations and risk factors were determined PubMed, SCOPUS, MEDLINE, and Index Medicus for the Eastern Mediterranean Region (IMEMR) databases were searched up until 30 January 2023. The search terms used were "Toxoplasma gondii" OR "Toxoplasma infection" AND "Pregnant woman" or pregnan* OR Antenatal OR Prenatal OR Gravidity OR Parturition OR Maternal AND WHO Eastern Mediterranean Region). OpenMeta-Analyst and Jamovi were used to analyze the generated data. RESULTS In total, 95 of 2947 articles meeting the inclusion criteria examined Toxoplasma gondii prevalence in pregnant women from WHO Eastern Mediterranean countries. The pooled prevalence of Toxoplasma gondii in pregnant women was 36.5% (95%CI: 32.6-40.4) with a median value of 35.64%, range values of 1.38-75.30%, with 99.61% heterogeneity. The pooled seroprevalence of IgG of Toxoplasma gondii was 33.5% (95%CI: 29.8-37.2) with a median value of 33.51%, and a range values of 1.38-69.92%; the pooled seroprevalence of IgM was 3.6% (95%CI: 3.1-4.1)) with a median value of 3.62 and range values of 0.20-17.47%, while cases of pooled seroprevalence of both IgG and IgM positivity was 3.0% (95%CI: 1.9-4.4) with a median value of 2.05 and a range values of 0.05-16.62%. Of the Toxoplasma gondii seropositive women, 1281/3389 (34.8%) 174/1765 (32.9%), 1311/3101 (43.7%), and 715/1683 (40.8%) of them had contact with cats, drank unprocessed milk, ate raw or undercooked meat and ate unwashed raw vegetables, respectively. The maternal-fetal outcomes associated with Toxoplasma gondii seropositivity were a history of abortions, miscarriage, stillbirth, intrauterine fetal death, and premature birth, which were found in 868/2990 (32.5%), 112/300 (36.1%), 111/375 (25.7%), 3/157 (1.9%) and 96/362 (20.1%) of women who tested positive for Toxoplasma gondii antibodies. CONCLUSION The study found a high proportion of Toxoplasma gondii seroprevalence in pregnant women in the WHO Eastern Mediterranean Region, which may be linked to poor outcomes for mothers and their babies. Thus, pregnant women require monitoring and comprehensive prevention strategies for Toxoplasma gondii infection.
Collapse
Affiliation(s)
- Ali A. Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran 31311, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
- Department of Public Health and Nutrition, The University of Haripur, Haripur 22610, Pakistan
| | - Leonard Ighodalo Uzairue
- Department of Medical Laboratory Science, Federal University, Oye-Ekiti 371104, Ekiti State, Nigeria
| | - Amal H. Alfaraj
- Pediatric Department, Abqaiq General Hospital, First Eastern Health Cluster, Abqaiq 33261, Saudi Arabia
| | - Muhammad A. Halwani
- Department of Medical Microbiology, Faculty of Medicine, Al Baha University, Al Baha 47810, Saudi Arabia
| | - Muzaheed
- Department of Clinical Laboratory Science, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Abdulsalam Alawfi
- Department of Pediatrics, College of Medicine, Taibah University, Al-Madinah 41491, Saudi Arabia
| | - Amer Alshengeti
- Department of Pediatrics, College of Medicine, Taibah University, Al-Madinah 41491, Saudi Arabia
- Department of Infection Prevention and Control, National Guard Health Affairs, Prince Mohammad Bin Abdulaziz Hospital, Al-Madinah 41491, Saudi Arabia
| | - Nawal A. Al Kaabi
- Department of Pediatric Infectious Disease, Sheikh Khalifa Medical City, Abu Dhabi 51900, United Arab Emirates
- College of Medicine and Health Science, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Eman Alawad
- Adult Infectious Diseases Department, Prince Mohammed Bin Abdulaziz Hospital, Riyadh 11474, Saudi Arabia
| | - Mashael Alhajri
- Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Sara Alwarthan
- Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Abeer N. Alshukairi
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
- Department of Medicine, King Faisal Specialist Hospital and Research Center, Jeddah 21499, Saudi Arabia
| | - Souad A. Almuthree
- Department of Infectious Disease, King Abdullah Medical City, Makkah 43442, Saudi Arabia
| | - Roua A. Alsubki
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia
| | - Nada N. Alshehri
- Internal Medicine Department, College of Medicine, King Khalid University Medical City, Abha 61481, Saudi Arabia
| | - Mohammed Alissa
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Hawra Albayat
- Infectious Disease Department, King Saud Medical City, Riyadh 7790, Saudi Arabia
| | - Tasneem I. Zaidan
- Pediatric Department, King Abdulaziz Hospital, Jeddah 23831, Saudi Arabia
| | - Hassan Alagoul
- Blood Bank Section, Dammam Regional Laboratory and Blood Bank, Dammam 31411, Saudi Arabia
| | - Ali Al Fraij
- Medical Laboratories & Blood Bank Department, Jubail Health Network, Eastern Health Cluster, Ministry of Health, Jubail 35514, Saudi Arabia
| | - Jeehan H. Alestad
- Immunology and Infectious Microbiology Department, University of Glasgow, Glasgow G1 1XQ, UK
- Microbiology Department, Collage of Medicine, Jabriya 46300, Kuwait
| |
Collapse
|
7
|
Mundada MC, Ahmed F, Kumar S, Kodandapani S, Rao LC. Toxoplasmosis lymphadenopathy-A series of 8 cases diagnosed in a 2-year timeframe: Is it a needle in a haystack? Indian J Otolaryngol Head Neck Surg 2023; 75:2729-2734. [PMID: 37636761 PMCID: PMC10447303 DOI: 10.1007/s12070-023-03832-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 08/29/2023] Open
Abstract
Toxoplasmosis is a zoonosis caused by Toxoplasma gondii, an obligate intracellular parasite. Clinical presentation of infection depends on the age and immune status of the patient. In immunocompetent patient, it may present as a non-specific lymphadenopathy and self- limiting illness. In contrast, in immunocompromised patients it can be a life-threatening infection. We present a series of 8 cases of toxoplasma lymphadenitis diagnosed in our institute in last two years. Lymphadenopathy raises a suspicion of malignancy; however, diagnosis of reactive lymphadenitis often marks the end of diagnostic evaluation. Careful morphological evaluation, the classic triad, often can direct at a conclusive diagnosis. We are presenting a case series to draw attention to this entity as majority of the published literature is in the form of case report and serological surveys and very occasional study showing both the histopathology and serology in tandem.
Collapse
Affiliation(s)
- Manasi Chetan Mundada
- Department of Laboratory Medicine, Basavatarakam Indo American Cancer Hospital and Research Institute, Rd No 10 Banjara Hills, Hyderabad, 500 034 India
| | - Faiq Ahmed
- Department of Laboratory Medicine, Basavatarakam Indo American Cancer Hospital and Research Institute, Rd No 10 Banjara Hills, Hyderabad, 500 034 India
| | - Snehil Kumar
- Department of Laboratory Medicine, Basavatarakam Indo American Cancer Hospital and Research Institute, Rd No 10 Banjara Hills, Hyderabad, 500 034 India
| | - Suseela Kodandapani
- Department of Laboratory Medicine, Basavatarakam Indo American Cancer Hospital and Research Institute, Rd No 10 Banjara Hills, Hyderabad, 500 034 India
| | - L.M. Chandrasekhara Rao
- Department of Head and Neck Oncology, Basavatarakam Indo American Cancer Hospital and Research Institute, Rd No 10 Banjara Hills, Hyderabad, 500 034 India
| |
Collapse
|
8
|
Kim KT, Seo MG. Molecular epidemiology of Toxoplasma gondii in cattle in Korea. PARASITES, HOSTS AND DISEASES 2023; 61:210-215. [PMID: 37258269 DOI: 10.3347/phd.23016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/18/2023] [Indexed: 06/02/2023]
Abstract
Toxoplasmosis is a major public health concern, with raw or undercooked meat being the primary source of human infection. Knowledge regarding the molecular epidemiology of Toxoplasma gondii in cattle destined for human consumption in Korea is lacking. The present study aimed to genetically characterize the infectious strains of T. gondii. Overall, 455 cattle blood samples from 84 farms in the Gyeongnam-do (Province) were randomly collected in 2017. Nested PCR analysis revealed that only 3 (0.7%) samples were infected with T. gondii. The B1 gene sequence of T. gondii was observed to be similar (97.3-99.6%) to that of other T. gondii isolates. This is the first study to perform the molecular detection of T. gondii in cattle in Korea. Although the prevalence of infection was low, our findings suggest that cattle present a potential public health issue. It may be crucial to recognize the importance of T. gondii infection in cattle meat.
Collapse
Affiliation(s)
- Kyoo-Tae Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea
| | - Min-Goo Seo
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea
| |
Collapse
|
9
|
Foodborne Parasites and Their Complex Life Cycles Challenging Food Safety in Different Food Chains. Foods 2022; 12:foods12010142. [PMID: 36613359 PMCID: PMC9818752 DOI: 10.3390/foods12010142] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022] Open
Abstract
Zoonotic foodborne parasites often represent complex, multi host life cycles with parasite stages in the hosts, but also in the environment. This manuscript aims to provide an overview of important zoonotic foodborne parasites, with a focus on the different food chains in which parasite stages may occur. We have chosen some examples of meat-borne parasites occurring in livestock (Taenia spp., Trichinella spp. and Toxoplasma gondii), as well as Fasciola spp., an example of a zoonotic parasite of livestock, but transmitted to humans via contaminated vegetables or water, covering the 'farm to fork' food chain; and meat-borne parasites occurring in wildlife (Trichinella spp., Toxoplasma gondii), covering the 'forest to fork' food chain. Moreover, fish-borne parasites (Clonorchis spp., Opisthorchis spp. and Anisakidae) covering the 'pond/ocean/freshwater to fork' food chain are reviewed. The increased popularity of consumption of raw and ready-to-eat meat, fish and vegetables may pose a risk for consumers, since most post-harvest processing measures do not always guarantee the complete removal of parasite stages or their effective inactivation. We also highlight the impact of increasing contact between wildlife, livestock and humans on food safety. Risk based approaches, and diagnostics and control/prevention tackled from an integrated, multipathogen and multidisciplinary point of view should be considered as well.
Collapse
|
10
|
Sadeghi M, Sarvi S, Emami S, Khalilian A, Hosseini SA, Montazeri M, Shahdin S, Nayeri T, Daryani A. Evaluation of anti-parasitic activities of new quinolones containing nitrofuran moiety against Toxoplasma gondii. Exp Parasitol 2022; 240:108344. [PMID: 35931176 DOI: 10.1016/j.exppara.2022.108344] [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: 07/19/2021] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 11/04/2022]
Abstract
Toxoplasmosis is a disease with a worldwide prevalence that is caused by Toxoplasma gondii. Pyrimethamine and sulfadiazine are two pharmacological agents commonly used to treat of this infection. However, they are accompanied by some side effects. Therefore, the identifying of new drugs with low toxocytosis seems to be a matter of vital importance. Quinolones are DNA replication inhibitors, exerting inhibitory effects against many pathogens, including bacteria, mycoplasma, and protozoa. Given the importance of quinolones and their efficacy, the present in vitro study was conducted to investigate the antiparasitic activities of new quinolones (NFQ-2, NFQ-5, and NFQ-6) containing nitrofuran moiety against T. gondii. To this end, Vero cells were incubated with various concentrations of new quinolones and pyrimethamine (positive control) to determine their viability. Subsequently, they were infected with T. gondii (RH strain) and then subjected to drug treatment. The obtained IC50 values were 3.60, 4.84, 5.59, 3.44 and 2.75 μg/mL for NFQ-2, NFQ-5, NFQ-6, ciprofloxacin and pyrimethamine, respectively. The CC50 values for the NFQ-2, NFQ-5, and NFQ-6 were 25.20, 29.89, and 28.43 μg/mL, indicating the selectivity indexes more than 5 for these compounds. The anti-Toxoplasma efficiency was determined by evaluating infection index, number and size of plaques, and T. gondii intracellular proliferation. As the results indicated, the administration of new quinolone derivatives resulted in the reduction of intracellular proliferation, infection index, and the number and size of plaques in comparison to uninfected treated cells (P < 0.05). The results were indicative of a considerable synergetic effect when each of the derivatives was used in combination with pyrimethamine, compared to when used alone. Based on our results, the nitrofuran-derived quinolones can be considered as new leads for the design of new anti-Toxoplasma agents.
Collapse
Affiliation(s)
- Mitra Sadeghi
- Toxoplasmosis Research Center, Communicable Disease Institute, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran; Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran; Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Science, Sari, Iran
| | - Shahabeddin Sarvi
- Toxoplasmosis Research Center, Communicable Disease Institute, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran; Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Science, Sari, Iran
| | - Saeed Emami
- Department of Medicinal Chemistry and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Alireza Khalilian
- Biostatistics Department, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Abdollah Hosseini
- Toxoplasmosis Research Center, Communicable Disease Institute, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran; Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Science, Sari, Iran
| | - Mahboobeh Montazeri
- Toxoplasmosis Research Center, Communicable Disease Institute, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - Shayesteh Shahdin
- Toxoplasmosis Research Center, Communicable Disease Institute, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran; Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Science, Sari, Iran
| | - Tooran Nayeri
- Toxoplasmosis Research Center, Communicable Disease Institute, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran; Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Science, Sari, Iran
| | - Ahmad Daryani
- Toxoplasmosis Research Center, Communicable Disease Institute, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran; Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Science, Sari, Iran.
| |
Collapse
|
11
|
Amouei A, Sarvi S, Mizani A, Hashemi-Soteh MB, Salehi S, Javidnia J, Hosseini SA, Amuei F, Alizadeh A, Shabanzade S, Gholami S, Daryani A. Genetic characterization of Toxoplasma gondii in meat-producing animals in Iran. Parasit Vectors 2022; 15:255. [PMID: 35821057 PMCID: PMC9277799 DOI: 10.1186/s13071-022-05360-1] [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: 03/07/2022] [Accepted: 06/10/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The consumption of uncooked or undercooked food from infected intermediate hosts can result in Toxoplasma gondii infection in humans. However, few studies have investigated the genetic diversity of this protozoan parasite in Iran. The aim of the present study was to genetically characterize isolates of T. gondii from intermediate host animals in Mazandaran Province, Iran. METHODS Blood and heart tissue samples were collected from 204 ruminants, and brain tissue was collected from 335 birds. The prevalence of T. gondii infection in these samples was determined serologically using the modified agglutination test and by conventional PCR assays. Those PCR samples positive for T. gondii DNA and 13 DNA samples extracted from aborted fetuses in a previous study were genotyped with 12 genetic markers using the multilocus-nested PCR-restriction fragment length polymorphism (Mn-PCR-RFLP) technique. RESULTS Antibodies for parasites were found in 35.7% of the ruminant (39.1% of sheep and 26.4% of goats) samples and in 51.3% of the bird (100% of geese, 52.3% of free-range chickens and 46% of ducks) samples. Molecular detection by PCR of the repetitive 529-bp DNA fragment revealed contamination of 13.2% of ruminant (14.6% of sheep and 9.4% of goats) samples and of 9.6% of bird (11.1% of chickens, 5.7% of ducks and 0% of geese samples). The results from 30 DNA samples revealed five ToxoDB (genome database for the genus Toxoplasma) PCR-RFLP genotypes, including #1 (Type II), #2 (Type III), #10 (Type I), #27 and #48, with genotype #1 the most predominant. CONCLUSIONS As evidenced by the results of this study, ruminants and birds are infected with T. gondii in the region, suggesting that they are likely to be involved in the transmission of T. gondii to humans through meat consumption. The identification of different genotypes may suggest a higher genetic diversity of this parasite in Mazandaran, reflecting local environmental contamination. These results have important public health implications for the prevention and control strategies of infection.
Collapse
Affiliation(s)
- Afsaneh Amouei
- Toxoplasmosis Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, School of Medicine, Mazandaran University of Medical Science, Sari, 4847191971, Mazandaran, Iran
| | - Shahabeddin Sarvi
- Toxoplasmosis Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, School of Medicine, Mazandaran University of Medical Science, Sari, 4847191971, Mazandaran, Iran
| | - Azadeh Mizani
- Department of Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Bagher Hashemi-Soteh
- Department of Clinical Biochemistry and Genetics, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeid Salehi
- Mazandaran Provincial Veterinary Department of Medical Sciences, Sari, Iran
| | - Javad Javidnia
- Department of Mycology, School of Medicine, Mazandaran University of Medical Science, Sari, Iran
| | - Seyed Abdollah Hosseini
- Toxoplasmosis Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, School of Medicine, Mazandaran University of Medical Science, Sari, 4847191971, Mazandaran, Iran
| | - Fateme Amuei
- Department of Organic Chemistry, University of Mazandaran, Babolsar, Iran
| | - Ahad Alizadeh
- Metabolic Diseases Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Shafigheh Shabanzade
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Science, Shiraz, Iran
| | - Sara Gholami
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Science, Sari, 4847191971, Mazandaran, Iran
| | - Ahmad Daryani
- Toxoplasmosis Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran. .,Department of Parasitology, School of Medicine, Mazandaran University of Medical Science, Sari, 4847191971, Mazandaran, Iran.
| |
Collapse
|
12
|
de Barros RAM, Torrecilhas AC, Marciano MAM, Mazuz ML, Pereira-Chioccola VL, Fux B. Toxoplasmosis in Human and Animals Around the World. Diagnosis and Perspectives in the One Health Approach. Acta Trop 2022; 231:106432. [PMID: 35390311 DOI: 10.1016/j.actatropica.2022.106432] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 12/12/2022]
Abstract
Toxoplasmosis is a unique health disease that significantly affects the health of humans, domestic animals, wildlife and is present in ecosystems, including water, soil and food. Toxoplasma gondii is one of the best-adapted parasites in the word. This parasite is able to persist for long periods in its hosts, in different geographic regions of the word. This review summarizes the current literature of these themes, focusing on: (1) toxoplasmosis, a zoonotic infection; (2) One health approach and toxoplasmosis; (3) human toxoplasmosis; (4) animal toxoplasmosis; (5) toxoplasmosis diagnosis, as immunological, parasitological and molecular diagnosis; (6) T. gondii outbreaks caused by infected meat, milk and dairy products, as well as, vegetables and water consume; (7) studies in experimental models; (8) genetic characterization of T. gondii strains; (9) extracellular vesicles and miRNA; and (10) future perspectives on T. gondii and toxoplasmosis. The vast prevalence of toxoplasmosis in both humans and animals and the dispersion and resistence of T. gondii parasites in environment highlight the importance of the one health approach in diagnostic and control of the disease. Here the different aspects of the one health approach are presented and discussed.
Collapse
Affiliation(s)
- Rosangela Aparecida Müller de Barros
- Unidade de Medicina Tropical, Departamento de Patologia, Universidade Federal do Espirito Santo, Vitoria, ES, Brazil.; Programa em Doenças Infecciosas, Centro de Doenças Infecciosas, Universidade Federal do Espirito Santo, Vitoria, ES, Brazil..
| | - Ana Claudia Torrecilhas
- Laboratório de Imunologia Celular e Bioquímica de Fungos e Protozoários, Departamento de Ciências Farmacêuticas, Universidade Federal de São Paulo (UNIFESP), Campus Diadema, Sao Paulo, SP, Brazil..
| | | | - Monica Leszkowicz Mazuz
- Parasitology Division, Kimron Veterinary Institute, Israeli Veterinary Service and Animal Health, Ministry of Agriculture and Rural Development Beit Dagan, 5025000, Israel..
| | | | - Blima Fux
- Unidade de Medicina Tropical, Departamento de Patologia, Universidade Federal do Espirito Santo, Vitoria, ES, Brazil.; Programa em Doenças Infecciosas, Centro de Doenças Infecciosas, Universidade Federal do Espirito Santo, Vitoria, ES, Brazil..
| |
Collapse
|
13
|
Gracia MJ, Lázaro R, Pérez-Arquillué C, Bayarri S. Effect of Domestic Freezing on the Viability of Toxoplasma gondii in Raw and Dry-Cured Ham from Experimentally Infected Pigs. J Food Prot 2022; 85:626-631. [PMID: 34935930 DOI: 10.4315/jfp-21-281] [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: 07/16/2021] [Accepted: 12/21/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT Toxoplasma gondii is the causative agent of the parasitic disease toxoplasmosis, which is an important foodborne zoonosis. Eating undercooked meat of infected animals has been considered the major transmission route of T. gondii to humans. The present study was conducted to evaluate the efficacy of domestic freezing for inactivation of T. gondii bradyzoites in ham. Raw and dry-cured ham from a pig experimentally inoculated orally with 4,000 oocysts of T. gondii VEG strain was subjected to domestic freezing at -20°C for up to 14 days. The effect was evaluated by bioassay in mice and a quantitative PCR assay. In raw and dry-cured ham, -20°C for 7 and 14 days, respectively, did not inactivate T. gondii. More studies are needed to find the correct temperature and time needed to render the bradyzoites noninfectious for humans. Meanwhile, the recommendations for freezing to inactivate T. gondii in raw or dry-cured meats must be revisited because domestic freezing conditions do not reduce the risk of infection. HIGHLIGHTS
Collapse
Affiliation(s)
- María J Gracia
- Instituto Agroalimentario de Aragón, Veterinary Faculty, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Regina Lázaro
- Instituto Agroalimentario de Aragón, Veterinary Faculty, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Consuelo Pérez-Arquillué
- Instituto Agroalimentario de Aragón, Veterinary Faculty, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - Susana Bayarri
- Instituto Agroalimentario de Aragón, Veterinary Faculty, Universidad de Zaragoza, 50013 Zaragoza, Spain
| |
Collapse
|
14
|
Dessì G, Tamponi C, Pasini C, Porcu F, Meloni L, Cavallo L, Sini MF, Knoll S, Scala A, Varcasia A. A survey on Apicomplexa protozoa in sheep slaughtered for human consumption. Parasitol Res 2022; 121:1437-1445. [PMID: 35192068 PMCID: PMC8993733 DOI: 10.1007/s00436-022-07469-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/10/2022] [Indexed: 11/26/2022]
Abstract
Infections with the Apicomplexa Toxoplasma gondii, Neospora caninum, and Sarcocystis spp. are common causes of reproductive disorders in sheep. However, few epidemiological studies regarding co-infections with these three protozoa are reported in sheep in Italy. For this reason, this study aims to evaluate possible co-infections with T. gondii, N. caninum, and Sarcocystis spp. in sheep slaughtered for human consumption. From April to July 2019, individual blood, brain, heart, and diaphragm samples were collected from 138 sheep after slaughtering. The presence of IgG anti-Toxoplasma in serum samples was evaluated through ELISA. DNA of the three protozoa was investigated using specific PCRs. Co-infection with T. gondii, N. caninum and Sarcocystis spp. was found in 66.7% of the examined sheep. Antibodies against T. gondii were found in the 36.2% of serum samples. The presence of T. gondii DNA was detected in the 67.4%, 77.5%, and 21.7% of the brain, heart, and diaphragm samples, respectively. Neospora caninum DNA was found in 72.5% of the examined brain samples. Sarcocystis spp. DNA was detected in 92% and 52.2% of the heart and diaphragm samples, respectively. Sequence analysis of the Sarcocystis spp. revealed the sole presence of Sarcocystis tenella. The present study demonstrates that sheep have a high risk of infection with the three Apicomplexa investigated, suggesting the need to adopt adequate measures to prevent the spread of these parasitic infections considering their clinical and economic impact on ovine production. Furthermore, the possible role sheep play in the zoonotic transmission of toxoplasmosis to humans was highlighted.
Collapse
Affiliation(s)
- Giorgia Dessì
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Claudia Tamponi
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Cinzia Pasini
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Francesca Porcu
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Luisa Meloni
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Lia Cavallo
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Maria Francesca Sini
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Stephane Knoll
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Antonio Scala
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Antonio Varcasia
- Parasitology, Department of Veterinary Medicine, University of Sassari, Sassari, Italy.
| |
Collapse
|
15
|
Thomas M, Aubert D, Escotte-Binet S, Durand B, Robert C, Geers R, Alliot A, Belbis G, Villena I, Blaga R. Anatomical distribution of Toxoplasma gondii in naturally and experimentally infected lambs. Parasite 2022; 29:3. [PMID: 35103589 PMCID: PMC8805606 DOI: 10.1051/parasite/2022001] [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] [Received: 04/27/2021] [Accepted: 01/10/2022] [Indexed: 02/02/2023] Open
Abstract
Consumption of raw or undercooked meat containing Toxoplasma gondii tissue cysts is one of the main sources of infection for humans worldwide. Among the various species intended for human consumption, sheep appear to be a high risk for human infection. The present study focused on the detailed anatomical distribution of Toxoplasma gondii in naturally and experimentally infected lambs using fresh and frozen samples of various pieces of meat, from a public health perspective. The first objective was to rank the edible parts intended for human consumption according to the detectable parasite burden by real-time PCR targeting the 529-bp repeated element. The second objective was to evaluate the impact of freezing by comparing the detection efficiency of the quantitative PCR between fresh and frozen tissues, as imports of lamb carcasses/cuts may arrive frozen or chilled. The highest estimated parasite loads were observed in skeletal muscles, and more particularly in edible portions such as quadriceps femoris muscle, intercostal muscles, deltoid muscle and diaphragm, with a significant difference in detectable parasite burden between fresh and frozen samples (p < 0.0001) or natural and experimental infection (p < 0.0001). Thoracic and pelvic limbs (3278-1048 parasites/g muscle) were ranked at the top of the list. Toxoplasma gondii DNA was detected in all the edible parts of lamb studied. These results suggest that lamb meat represents a risk for consumers. Further investigations are needed in order to confirm these differences in larger numbers of animals and in different breeds.
Collapse
Affiliation(s)
- Myriam Thomas
- French Agency for Food, Environmental and Occupational Health and Safety (ANSES), INRAE, École Nationale Vétérinaire d’Alfort, UMR BIPAR, Animal Health Laboratory 14 rue Pierre et Marie Curie Maisons-Alfort 94700 France
| | - Dominique Aubert
- National Reference Centre on Toxoplasmosis, Toxoplasma Biological Reference Centre, CHU Reims and EA7510, SFR CAP-Santé, University of Reims Champagne-Ardenne USC EpiToxo Anses Reims 51095 France
| | - Sandie Escotte-Binet
- National Reference Centre on Toxoplasmosis, Toxoplasma Biological Reference Centre, CHU Reims and EA7510, SFR CAP-Santé, University of Reims Champagne-Ardenne USC EpiToxo Anses Reims 51095 France
| | - Benoît Durand
- Epidemiology Unit, Animal Health Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), University Paris-Est 14 rue Pierre et Marie Curie Maisons-Alfort 94700 France
| | - Céline Robert
- École Nationale Vétérinaire d’Alfort 7 avenue du Général de Gaulle Maisons-Alfort 94700 France
| | - Régine Geers
- National Reference Centre on Toxoplasmosis, Toxoplasma Biological Reference Centre, CHU Reims and EA7510, SFR CAP-Santé, University of Reims Champagne-Ardenne USC EpiToxo Anses Reims 51095 France
| | - Annie Alliot
- French Agency for Food, Environmental and Occupational Health and Safety (ANSES), INRAE, École Nationale Vétérinaire d’Alfort, UMR BIPAR, Animal Health Laboratory 14 rue Pierre et Marie Curie Maisons-Alfort 94700 France
| | - Guillaume Belbis
- École Nationale Vétérinaire d’Alfort 7 avenue du Général de Gaulle Maisons-Alfort 94700 France
| | - Isabelle Villena
- National Reference Centre on Toxoplasmosis, Toxoplasma Biological Reference Centre, CHU Reims and EA7510, SFR CAP-Santé, University of Reims Champagne-Ardenne USC EpiToxo Anses Reims 51095 France
| | - Radu Blaga
- French Agency for Food, Environmental and Occupational Health and Safety (ANSES), INRAE, École Nationale Vétérinaire d’Alfort, UMR BIPAR, Animal Health Laboratory 14 rue Pierre et Marie Curie Maisons-Alfort 94700 France,Corresponding author:
| |
Collapse
|
16
|
Shehzad A, Masud A, Fatima T, Khan FM, Rehman S, Effendi MH, Suwanti LT, Khan I, Tyasningsih W, Faisal S, Abadeen ZU, Bibi S. Seroprevalence of Toxoplasma gondii and associated alterations in hematology and serum biochemistry of one-humped camels (Camelus dromedarius) in Pakistan. Vet World 2022; 15:110-118. [PMID: 35369577 PMCID: PMC8924402 DOI: 10.14202/vetworld.2022.110-118] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 12/10/2021] [Indexed: 11/23/2022] Open
Abstract
Background and Aim: Toxoplasma gondii is an intracellular protozoan that infects humans and animals. This study aimed to estimate the seroprevalence of T. gondii and the associated alterations in hematology and serum biochemistry of one-humped camels (Camelus dromedarius) in Mianwali district, Pakistan. Materials and Methods: A total of 350 blood samples were obtained from male and female camels of different ages (≤3 years old, 4-6 years old, and ≥7 years old). To validate T. gondii antibodies, the collected samples were subjected to indirect enzyme-linked immunosorbent assay using purified recombinant micronemal protein 3 as an antibody catching antigen. Results: The prevalence of T. gondii was 50.2% higher in male camels than in female camels (16.5%) (p<0.001). Furthermore, the prevalence of T. gondii in camels was directly proportional to age (p<0.001). It was 63.33% (57/90) in camels of ≥7 years of age, 32.54% in 4-6 years old age group, and 23.08% in ≤3 years old age group. The hematological analysis of infected camels revealed a significant increase in the values of glucocorticoid-remediable aldosteronism, lymphocyte percentage, monocyte percentage (MONO%), corpuscular hemoglobin (MCH), and procalcitonin. Furthermore, substantially higher levels of liver enzymes alanine aminotransferase, aspartate aminotransferase, and the macro-mineral potassium were found in the serum of T. gondii-infected camels. Conclusion: The seropositivity of T. gondii is directly associated with the age and sex of camels, which may be considered as potential risk factors. Furthermore, T. gondii infection directly impacts the hemato-biochemistry of infected camels.
Collapse
Affiliation(s)
- Aamir Shehzad
- Division of Microbiology, Faculty of Veterinary Medicine, University of Airlangga, Surabaya 60115, Indonesia; Livestock and Dairy Development, Government of Punjab, Lahore, Pakistan
| | - Awais Masud
- Livestock and Dairy Development, Government of Punjab, Lahore, Pakistan; Department of Microbiology, Faculty of Veterinary Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Tabassam Fatima
- Department of Parasitology, Riphah College of Veterinary Sciences, Riphah International University, Lahore, Pakistan
| | - Fraz Munir Khan
- Livestock and Dairy Development, Government of Punjab, Lahore, Pakistan
| | - Saifur Rehman
- Division of Microbiology, Faculty of Veterinary Medicine, University of Airlangga, Surabaya 60115, Indonesia; Department of Veterinary Public Health, Faculty of Veterinary Medicine, University of Airlangga, Surabaya 60115, Indonesia
| | - Mustofa Helmi Effendi
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, University of Airlangga, Surabaya 60115, Indonesia
| | - Lucia Tri Suwanti
- Department Veterinary Parasitology, Faculty of Veterinary Medicine, University of Airlangga, Surabaya 60115, Indonesia
| | - Iahtasham Khan
- Department of Clinical Sciences, Section of Epidemiology and Public Health, Jhang Campus, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Wiwiek Tyasningsih
- Division of Microbiology, Faculty of Veterinary Medicine, University of Airlangga, Surabaya 60115, Indonesia
| | - Shah Faisal
- Department of Pharmacy Practice, Faculty of Pharmacy, University of Airlangga Surabaya 60115, Indonesia
| | - Zain Ul Abadeen
- Department of Pathology, University of Agriculture Faisalabad, Pakistan
| | - Samreen Bibi
- Institute of Food Science and Nutrition, Faculty of Agriculture, University of Sargodha, Sargodha Division, Punjab, Pakistan
| |
Collapse
|
17
|
Toxoplasma gondii infection in slaughtered domestic ruminants in Northwest Ethiopia: occurrence, bioassay and virulence assessment. J Parasit Dis 2022; 46:429-439. [DOI: 10.1007/s12639-022-01466-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 01/11/2022] [Indexed: 11/25/2022] Open
|
18
|
Geospatial epidemiology of Toxoplasma gondii infection in livestock, pets, and humans in China, 1984-2020. Parasitol Res 2022; 121:743-750. [PMID: 34988670 DOI: 10.1007/s00436-021-07415-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 12/19/2021] [Indexed: 12/22/2022]
Abstract
Undercooked or raw meat containing cyst-stage bradyzoites and oocyst-contaminated pets are presumed to constitute a major source of human toxoplasmosis. As the geospatial epidemiology of Toxoplasma gondii (T. gondii) infection in livestock, pets, and humans is rarely studied in China, we undertook a geospatial analysis using GIS visualization techniques. The present study retrieved information from the PubMed, China National Knowledge Infrastructure, and Baidu Scholar databases from 1984 up to 2020. All the data about the seroprevalence of T. gondii in livestock (sheep and goats, pigs, cattle and yaks), pets (cats, dogs), and humans in China were collected. Geospatial epidemiology of T. gondii infection in these hosts was performed using GIS. Results revealed that the estimated pooled seroprevalence of T. gondii was ranged from 3.98 to 43.02% in sheep and goats in China, 0.75 to 30.34% in cattle and yaks, 10.45 to 66.47% in pigs, 2.50 to 60.00% in cats, 0.56 to 27.65% in dogs, and 0.72 to 23.41% in humans. The higher seroprevalences of T. gondii were observed in sheep and goats in the districts of Chongqing, Zhejiang, and Beijing. The infection rates of T. gondii in cattle and yaks were higher in Guizhou, Zhejiang, and Chongqing. Also, the pigs from Chongqing and Guizhou were most severely infected with T. gondii. For cats, the districts of Shanxi, Hebei, and Yunnan had higher seroprevalences of T. gondii and, the infections among dogs were higher in Yunnan and Hebei as well. Furthermore, higher infection pressure of T. gondii exists in the districts of Taiwan and Tibet in humans. The geographical and spatial distribution of toxoplasmosis indicated that infection with T. gondii was widely spread in China, with a wide range of variations among the different hosts and regions in the country. Our results suggested that livestock and pets are not only a reservoir for the parasite but also a direct source of T. gondii infection for humans. It is important to control T. gondii infections in these animals that would reduce the risk of toxoplasmosis in humans.
Collapse
|
19
|
Inpankaew T, Thi Thuy N, Nimsuphan B, Kengradomkij C, Kamyingkird K, Chimnoi W, Boonaue B, Xuan X. Seroprevalence of Toxoplasma gondii infection from water buffaloes (Bubalus bubalis) in northeastern and southern Thailand. Folia Parasitol (Praha) 2021; 68. [PMID: 34994346 DOI: 10.14411/fp.2021.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 10/06/2021] [Indexed: 11/19/2022]
Abstract
Toxoplasmosis is a parasitic disease resulting from infection with the apicomplexan Toxoplasma gondii (Nicolle et Manceaux, 1908), one of the world's most common parasites in warm-blooded animals, including humans. Sources of infection can be exposed to infected cat faeces, mother-to-child transmission during pregnancy, and notably, the consumption of undercooked contaminated meat of intermediate hosts. In Thailand, water buffaloes are highly valued for rice cultivation, traditional culture and meat production. Like several other mammalian species, these animals play a role as reservoirs of T. gondii, thus representing a threat to human health. The seroprevalence of T. gondii infection in swamp buffaloes was examined in southern and northeastern Thailand. In total, serum samples of 721 water buffaloes were collected from seven provinces (Ubon Ratchathani, Roi Et, Si Sa Ket, Surin, Buri Ram, Sakon Nakhon, and Songkhla) and examined for the presence of T. gondii infection using commercial latex agglutination test kits (TOXOCHECK-MT, Eiken Chemical Co., Tokyo, Japan). Of the 721 animals analysed, 49 (6.8%) were positive for T. gondii. Songkhla province had the highest seroprevalence (14.7%) among the seven provinces covered in this survey. There was a potential risk to local citizens of T. gondii infection identified by the present study, notably in northeastern Thailand, where despite lower seroprevalence consuming raw buffalo meat salad should be restricted to avoid the risk of zoonotic infections.
Collapse
Affiliation(s)
- Tawin Inpankaew
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Nguyen Thi Thuy
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand.,Faculty of Animal Science and Veterinary Medicine, University of Agriculture and Forestry, Hue University, Hue City, Vietnam
| | - Burin Nimsuphan
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Chanya Kengradomkij
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Ketsarin Kamyingkird
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Wissanuwat Chimnoi
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Boy Boonaue
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Xuenan Xuan
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido, Japan
| |
Collapse
|
20
|
Sánchez-López EF, Corigliano MG, Oliferuk S, Ramos-Duarte VA, Rivera M, Mendoza-Morales LF, Angel SO, Sander VA, Clemente M. Oral Immunization With a Plant HSP90-SAG1 Fusion Protein Produced in Tobacco Elicits Strong Immune Responses and Reduces Cyst Number and Clinical Signs of Toxoplasmosis in Mice. FRONTIERS IN PLANT SCIENCE 2021; 12:726910. [PMID: 34675949 PMCID: PMC8525317 DOI: 10.3389/fpls.2021.726910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/30/2021] [Indexed: 05/17/2023]
Abstract
Plant 90kDa heat shock protein (HSP90) is a potent adjuvant that increases both humoral and cellular immune responses to diverse proteins and peptides. In this study, we explored whether Arabidopsis thaliana HSP90 (AtHsp81.2) can improve the immune effects of a Toxoplasma gondii surface antigen 1 (SAG1). We designed two constructs containing the sequence of mature antigen (SAG1m), from aa77 to aa322, and B- and T-cell antigenic epitope-containing SAG1HC, from aa221 to aa319 fused to AtHsp81.2 sequence. When comparing the transient expression in Nicotiana tabacum X-27-8 leaves, which overexpress the suppressor helper component protease HC-Pro-tobacco etch virus (TEV), to that in N. benthamiana leaves, co-agroinfiltrated with the suppressor p19, optimal conditions included 6-week-old N. benthamiana plants, 7-day time to harvest, Agrobacterium tumefaciens cultures with an OD600nm of 0.6 for binary vectors and LED lights. While AtHsp81.2-SAG1m fusion protein was undetectable by Western blot in any of the evaluated conditions, AtHsp81.2-SAG1HC was expressed as intact fusion protein, yielding up to 90μg/g of fresh weight. Besides, the AtHsp81.2-SAG1HC mRNA was strongly expressed compared to the endogenous Nicotiana tabacum elongation factor-alpha (NtEFα) gene, whereas the AtHsp81.2-SAG1m mRNA was almost undetectable. Finally, mice were orally immunized with AtHsp81.2-SAG1HC-infiltrated fresh leaves (plAtHsp81.2-SAG1HC group), recombinant AtHsp81.2-SAG1HC purified from infiltrated leaves (rAtHsp81.2-SAG1HC group), non-infiltrated fresh leaves (control group), or phosphate-buffered saline (PBS group). Serum samples from plAtHsp81.2-SAG1HC-immunized mice had significantly higher levels of IgGt, IgG2a, and IgG2b anti-SAG1HC antibodies than serum from rAtHsp81.2-SAG1HC, control, and PBS groups. The number of cysts per brain in the plAtHsp81.2-SAG1HC-immunized mice was significantly reduced, and the parasite load in brain tissue was also lower in this group compared with the remaining groups. In an immunoblot assay, plant-expressed AtHsp81.2-SAG1HC was shown to react with antibodies present in sera from T. gondii-infected people. Therefore, the plant expression of a T. gondii antigen fused to the non-pathogenic adjuvant and carrier plant HSP90 as formulations against T. gondii can improve the vaccine efficacy, and plant extract can be directly used for vaccination without the need to purify the protein, making this platform a suitable and powerful biotechnological system for immunogenic antigen expression against toxoplasmosis.
Collapse
Affiliation(s)
- Edwin F. Sánchez-López
- Laboratorio de Molecular Farming y Vacunas, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| | - Mariana G. Corigliano
- Laboratorio de Molecular Farming y Vacunas, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| | - Sonia Oliferuk
- Laboratorio de Molecular Farming y Vacunas, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| | - Victor A. Ramos-Duarte
- Laboratorio de Molecular Farming y Vacunas, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| | - Maximiliano Rivera
- Laboratorio de Parasitología Molecular, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| | - Luisa F. Mendoza-Morales
- Laboratorio de Molecular Farming y Vacunas, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| | - Sergio O. Angel
- Laboratorio de Parasitología Molecular, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| | - Valeria A. Sander
- Laboratorio de Molecular Farming y Vacunas, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| | - Marina Clemente
- Laboratorio de Molecular Farming y Vacunas, Instituto Tecnológico Chascomús (INTECH), Universidad Nacional de General San Martín (UNSAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chascomús, Argentina
| |
Collapse
|
21
|
Azimi K, Amouei A, Sharif M, Sarvi S, Shams N, Mizani A, Hosseini SA, Salehi S, Safari-Kharyeki MR, Chegeni TN, Hosseininejad Z, Daryani A. Diagnosis of Toxoplasmosis in Ruminants Aborted Fetuses in Northern Iran Using Molecular and Bioassay Techniques. IRANIAN JOURNAL OF PARASITOLOGY 2021; 16:229-235. [PMID: 34557237 PMCID: PMC8418659 DOI: 10.18502/ijpa.v16i2.6273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 09/10/2020] [Indexed: 11/30/2022]
Abstract
Background: Toxoplasma gondii is a zoonotic obligatory intracellular protozoan parasite that infects a wide range of warm-blooded species. This study aimed to obtain further information on the role of T. gondii infection in ruminant abortion (sheep, goats and cattle) using bioassay and PCR methods in Mazandaran province, northern Iran. Methods: Overall, 104 aborted fetuses (52 bovine, 48 ovine, 4 caprine) were collected at different stages of gestation during the lambing seasons in various parts of Mazandaran Province from Mar 2016 to May 2017. Brains of 104 aborted fetuses were bioassayed in female BALB/c mice. DNA was extracted from all brain samples using phenol-chloroform-isoamyl Alcohol instructions. RE gene was used for detection all of T. gondii DNA by conventional PCR assay. Results: The results of the bioassayed samples were negative because no tachyzoites or cyst were observed in the peritoneal and brain specimens of the mice. The detection of T. gondii DNA was confirmed by observation of a 529 bp band in 15 out of 104 fetuses (14.4%). The highest prevalence rate of T. gondii detected from sheep (16.6%) followed by cattle (13.4%) and goats (0%). The highest prevalence of the infection was observed in east area, while the lowest prevalence of the infection was observed in west area. Conclusion: T. gondii infection may partly be responsible for abortion and economic losses in livestock husbandry in this region. Therefore, further additional researches such as genotyping T. gondii and designing control strategies for improving management in livestock flocks are necessary.
Collapse
Affiliation(s)
- Kaveh Azimi
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Afsaneh Amouei
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehdi Sharif
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shahabeddin Sarvi
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Nemat Shams
- Faculty of Veterinary Medicine, Lorestan University, Khorramabad, Iran
| | - Azadeh Mizani
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Abdollah Hosseini
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeid Salehi
- Mazandaran Provincial Veterinary Department, Medical Sciences, Sari, Iran
| | | | - Tooran Nayeri Chegeni
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Zahra Hosseininejad
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ahmad Daryani
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Parasitology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| |
Collapse
|
22
|
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
|
23
|
Maia MO, de Almeida SLH, Schmidt AC, de Oliveira ACS, de Aguiar DM, Dos Santos-Doni TR, de Campos Pacheco R. High prevalence of anti-Toxoplasma gondii antibodies in beef cattle in Midwestern Brazil. Vet Res Commun 2021; 45:399-407. [PMID: 34415505 DOI: 10.1007/s11259-021-09820-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 08/08/2021] [Indexed: 11/29/2022]
Abstract
The present study aimed to determine the seroprevalence of anti-Toxoplasma gondii antibodies using an indirect immunofluorescence assay (IFA-IgG) in 3,814 cows aged ≥ 24 months belonging to 353 beef farms in the Mato Grosso state. Additionally, we aimed to identify the possible risk factors associated with seropositivity in Mato Grosso, which encompasses three biomes (Amazon, Cerrado, and Pantanal) of Brazil. Analysis of 3,814 samples observed that 1,307 animals were positive for anti-T. gondii antibodies (IFA-IgG ≥ 64), with an animal-level seroprevalence of 34.27%. Herd-level seroprevalence was 92.07%. In the animal-level model, cows raised in the Amazon and Pantanal biomes and breed studies on European and Zebu or hybrid were found to be at risk for T. gondii seropositivity. Prevalence of anti-T. gondii antibodies in cows destined for human consumption was found to be widely distributed throughout the entire study area. Further studies are required to assess the impact of beef in the possible transmission of toxoplasmosis to humans residing in the region and establish additional control measures for this protozoan mainly on beef herds raised in the Amazon and Pantanal biomes, where the highest values of seroprevalence were observed.
Collapse
Affiliation(s)
- Maerle Oliveira Maia
- Programa de Pós-Graduação Em Ciências Veterinárias, PPGVET, Faculdade de Medicina Veterinária, FAVET, Universidade Federal de Mato Grosso, UFMT, Cuiabá, MT, 78060-900, Brazil
| | - Sayanne Luns Hatum de Almeida
- Programa de Residência Uniprofissional Em Medicina Veterinária, Universidade Federal de Mato Grosso, UFMT, Cuiabá, MT, 78060-900, Brazil
| | - Ana Carolina Schmidt
- Instituto de Defesa Agropecuária Do Estado de Mato Grosso, INDEA-MT, Cuiabá, MT, 78050-900, Brazil
| | - Anderson Castro Soares de Oliveira
- Programa de Pós-Graduação Em Ciências Veterinárias, PPGVET, Faculdade de Medicina Veterinária, FAVET, Universidade Federal de Mato Grosso, UFMT, Cuiabá, MT, 78060-900, Brazil
| | - Daniel Moura de Aguiar
- Programa de Pós-Graduação Em Ciências Veterinárias, PPGVET, Faculdade de Medicina Veterinária, FAVET, Universidade Federal de Mato Grosso, UFMT, Cuiabá, MT, 78060-900, Brazil
| | - Thaís Rabelo Dos Santos-Doni
- Instituto de Ciências Agrárias, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, UFVJM, Unaí, MG, 38600-000, Brazil.
| | - Richard de Campos Pacheco
- Programa de Pós-Graduação Em Ciências Veterinárias, PPGVET, Faculdade de Medicina Veterinária, FAVET, Universidade Federal de Mato Grosso, UFMT, Cuiabá, MT, 78060-900, Brazil
| |
Collapse
|
24
|
Yusuf AA, Hassan-Kadle AA, Ibrahim AM, Hassan-Kadle MA, Yasin AM, Khojaly M, Garcia JL, Vieira RFC. Prevalence of Anti-Toxoplasma gondii and Anti-Brucella Spp. Antibodies in Pregnant Women From Mogadishu, Somalia. FRONTIERS IN REPRODUCTIVE HEALTH 2021; 3:672885. [PMID: 36304030 PMCID: PMC9580836 DOI: 10.3389/frph.2021.672885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 07/06/2021] [Indexed: 11/13/2022] Open
Abstract
Toxoplasmosis and brucellosis are zoonotic diseases of worldwide distribution. They both cause abortion and infertility in human and animals. Limited data are available about these pathogens in Somali people and their animals. Hence, this study has evaluated the prevalence of anti-Toxoplasma gondii and anti-Brucella spp. antibodies in pregnant women in Mogadishu, Somalia. Serum samples from 307 pregnant women from Mogadishu, Somalia were tested for anti-T. gondii antibodies by Latex Agglutination Test (LAT) and anti-Brucella spp. antibodies by Rose Bengal Plate Test (RBPT) and a commercial competitive-ELISA (cELISA). A total of 119/307 (38.76%) pregnant women had a prior history of abortion. A total of 159/307 (51.79%; 95% CI: 46.2–57.35%) pregnant women were seroreactive for T. gondii by LAT at different stages of pregnancy. For Brucella spp., when RBPT and cELISA were combined 4/307 (1.30%; 95% CI: 0.36–3.30%) pregnant women were seroreactive to anti-Brucella spp. antibodies, being 2/307 (0.65%; 95% CI: 0.18–2.34%) by RBPT and 3/307 (0.98%; 95% CI: 0.33–2.83%) by cELISA. Two women were seroreactive for both agents. A high seropositivity to T. gondii and low seropositivity to Brucella spp. have been found in pregnant women from Mogadishu, Somalia. Considering the high number of abortions in the country associated to the fact that awareness on other zoonotic abortifacient pathogens in Somalis is very low, further studies should be conducted to evaluate the potential causes of abortions.
Collapse
Affiliation(s)
- Abdulkarim A. Yusuf
- Vector-Borne Diseases Laboratory, Department of Veterinary Medicine, Universidade Federal Do Paraná, Curitiba, Brazil
- Abrar Research and Training Centre, Abrar University, Mogadishu, Somalia
- *Correspondence: Abdulkarim A. Yusuf
| | - Ahmed A. Hassan-Kadle
- Vector-Borne Diseases Laboratory, Department of Veterinary Medicine, Universidade Federal Do Paraná, Curitiba, Brazil
- Abrar Research and Training Centre, Abrar University, Mogadishu, Somalia
| | - Abdalla M. Ibrahim
- Vector-Borne Diseases Laboratory, Department of Veterinary Medicine, Universidade Federal Do Paraná, Curitiba, Brazil
- Abrar Research and Training Centre, Abrar University, Mogadishu, Somalia
- College of Medicine and Health Science, Abrar University, Mogadishu, Somalia
| | | | - Abdullahi M. Yasin
- College of Medicine and Health Science, Abrar University, Mogadishu, Somalia
| | - Maha Khojaly
- Central Veterinary Research Laboratory, Khartoum, Sudan
| | - João L. Garcia
- Department of Veterinary Preventive Medicine, Londrina State University, Londrina, Brazil
| | - Rafael F. C. Vieira
- Vector-Borne Diseases Laboratory, Department of Veterinary Medicine, Universidade Federal Do Paraná, Curitiba, Brazil
- Global One Health Initiative, The Ohio State University, Columbus, OH, United States
- Rafael F. C. Vieira
| |
Collapse
|
25
|
Inpankaew T, Sattasathuchana P, Kengradomkij C, Thengchaisri N. Prevalence of toxoplasmosis in semi-domesticated and pet cats within and around Bangkok, Thailand. BMC Vet Res 2021; 17:252. [PMID: 34294094 PMCID: PMC8296730 DOI: 10.1186/s12917-021-02965-z] [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: 03/27/2021] [Accepted: 07/10/2021] [Indexed: 11/10/2022] Open
Abstract
Background Toxoplasmosis is one of the most common parasitic zoonoses worldwide. Cats become infected after ingesting infected tissue cysts. The objective of the present study was to compare the prevalence of toxoplasmosis in pet cats and semi-domesticated cats in the Bangkok metropolitan region. A survey of Toxoplasma infection was conducted in 260 cats (median age [range]: 3 years [10 months–10 years]; 155 females and 105 males) by collecting blood samples from 130 client-owned pet cats and 130 semi-domesticated cats within and around Bangkok during 2016–2017 using indirect fluorescence antibody tests. An IgG antibody to Toxoplasma antigen ratio of ≥1:100 was considered positive for Toxoplasma infection. Results The overall prevalence of T. gondii in cats was 6.5% (17/260). The prevalence of T. gondii in semi-domesticated cats and pet cats was 11.5 and 1.5%, respectively. Semi-domesticated cats aged 1–5 years (14.9%) had a higher prevalence of infection than domesticated cats (1.3%, p = 0.002) of the same age. The odds (95% confidence interval [CI]) of having T. gondii infection in semi-domesticated cats were 8.34 (1.86–76.29, p = 0.0017) times higher than in pet cats. Interestingly, there was an association between T. gondii infection according to city region (p = 0.002). The odds (95% CI) of having T. gondii infection in cats living in the inner city were 4.96 (1.03–47.16, p = 0.023) times higher than cats living in the suburb and the vicinity. Conclusions The present study identified a higher prevalence of Toxoplasma infection in semi-domesticated cats compared with pet cats. The semi-domesticated cats could serve as a zoonotic reservoir. Public health regulations should be implemented to prevent toxoplasmosis spread.
Collapse
Affiliation(s)
- Tawin Inpankaew
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
| | - Panpicha Sattasathuchana
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
| | - Chanya Kengradomkij
- Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
| | - Naris Thengchaisri
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand.
| |
Collapse
|
26
|
Langoni H, Generoso D, Hayasaka ÊY, Mantovan KB, Menozzi BD, Richini-Pereira VB, Silva RCD. Molecular characterization of Toxoplasma gondii and Sarcocystis spp. in raw kibbeh and other meat samples commercialized in Botucatu, Southeastern Brazil. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2021; 30:e029320. [PMID: 34190775 DOI: 10.1590/s1984-29612021051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/26/2021] [Indexed: 11/22/2022]
Abstract
Toxoplasmosis occurs worldwide causing economic losses to the animal production and problems to the public health. The study aimed to detect Toxoplasma gondii and Sarcocystis spp.in 141 meat products from commercial meat cuts of pork, beef, and kibbeh sold in commercial markets from Botucatu, SP, Brazil. Samples were bioassayed in mice to isolate the parasite, and the parasite DNA detected by PCR targeting the 529 base pairs repeat element region (PCR-529-bp). All samples resulted negative on bioassay, whereas PCR positive for 9 (6,38%), distributed as 5/48 beef, 3/49 pork, and 1/44 kibbeh. PCR-positive were investigated for the the parasite genotype using multiplex-, nested-, and RFLP-PCR for 11 markers (SAG1, 5'-3'SAG2, alt.SAG2, SAG3, B-TUB, GRA6, L358, c22-8, c29-6, PK1, Apico). Complete genotype was determined on just one PCR-positive sample that matched MAS, TgCkBr89 and TgCkBr147 isolates already identified. In addition, nested- and RFLP-PCR targeting 18S rRNA was run for all PCR-positive samples and, the products, sequenced and aligned to the GenBank at NCBI website. Four samples showed 100% homology with T. gondii (GenBank #L37415.1), three with Sarcocystis hominis (GenBank #AF006471.1), two Sarcocystis cruzi (GenBank #AF176934.1), and one Sarcocystis hirsuta (GenBank #AF006469.1), indicating the circulation of T. gondii and Sarcocystis spp.
Collapse
Affiliation(s)
- Helio Langoni
- Serviço de Diagnóstico de Zoonoses, Departamento de Produção Animal e Medicina Veterinária Preventiva, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista - UNESP, Botucatu, São Paulo, SP, Brasil
| | - Diego Generoso
- Serviço de Diagnóstico de Zoonoses, Departamento de Produção Animal e Medicina Veterinária Preventiva, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista - UNESP, Botucatu, São Paulo, SP, Brasil
| | - Ênio Yoshinori Hayasaka
- Serviço de Diagnóstico de Zoonoses, Departamento de Produção Animal e Medicina Veterinária Preventiva, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista - UNESP, Botucatu, São Paulo, SP, Brasil
| | - Karine Bott Mantovan
- Serviço de Diagnóstico de Zoonoses, Departamento de Produção Animal e Medicina Veterinária Preventiva, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista - UNESP, Botucatu, São Paulo, SP, Brasil
| | - Benedito Donizete Menozzi
- Serviço de Diagnóstico de Zoonoses, Departamento de Produção Animal e Medicina Veterinária Preventiva, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista - UNESP, Botucatu, São Paulo, SP, Brasil
| | | | | |
Collapse
|
27
|
Flores C, Villalobos-Cerrud D, Borace J, Fábrega L, Norero X, Sáez-Llorens X, Moreno MT, Restrepo CM, Llanes A, Quijada R. M, Ladrón De Guevara M, Guzmán G, de la Guardia V, García A, Lucero MF, Wong D, Mcleod R, Soberon M, Caballero E. Z. Epidemiological Aspects of Maternal and Congenital Toxoplasmosis in Panama. Pathogens 2021; 10:764. [PMID: 34204401 PMCID: PMC8234371 DOI: 10.3390/pathogens10060764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 02/06/2023] Open
Abstract
In Panama, epidemiological data on congenital toxoplasmosis are limited, making it difficult to understand the scope of clinical manifestations in the population and factors that may increase the risk of infection. This study provides insight into the epidemiological situation of maternal and congenital toxoplasmosis in Panama and contributing information on the burden of this disease in Central America. Blood samples were collected from 2326 pregnant women and used for the detection of anti-T. gondii antibodies. A high seroprevalence (44.41%) was observed for T. gondii infection in pregnant women from different regions of Panama, with an estimated incidence rate of congenital toxoplasmosis of 3.8 cases per 1000 live births. The main risk factors associated with T. gondii infection using bivariate statistical analysis were an elementary level education and maternal age range of 34-45 years. Multivariate statistical analyses revealed that in some regions (San Miguelito, North and West regions), the number of positive cases correlated with the presence of pets, stray dogs and the consumption of poultry. In other regions (East and Metropolitan regions), the absence of pets was considered a protective factor associated with negative cases, while the presence of stray cats and the age range of 25-34 years did not represent any risk in these regions.
Collapse
Affiliation(s)
- Carlos Flores
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
- Laboratorio Clínico, Hospital Santo Tomás, Panama City 0816-00383, Panama;
| | - Delba Villalobos-Cerrud
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
- Departamento de Microbiología y Parasitología, Escuela de Biología, Facultad de Ciencias Naturales Exactas y Tecnología, Universidad de Panamá, Panama 4, Panama City 3366, Panama
| | - Jovanna Borace
- Laboratorio Clínico, Hospital Santo Tomás, Panama City 0816-00383, Panama;
| | - Lorena Fábrega
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
| | - Ximena Norero
- Departamento de Infectología, Hospital del Niño Dr. José Renán Esquivel, Panama City 0816-00383, Panama; (X.N.); (X.S.-L.); (M.T.M.)
| | - X. Sáez-Llorens
- Departamento de Infectología, Hospital del Niño Dr. José Renán Esquivel, Panama City 0816-00383, Panama; (X.N.); (X.S.-L.); (M.T.M.)
- Sistema Nacional de Investigación-Secretaría Nacional de Ciencia, Tecnología e Innovasión (SNI-SENACYT), Panama City 0816-02852, Panama
| | - María Teresa Moreno
- Departamento de Infectología, Hospital del Niño Dr. José Renán Esquivel, Panama City 0816-00383, Panama; (X.N.); (X.S.-L.); (M.T.M.)
| | - Carlos M. Restrepo
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
- Sistema Nacional de Investigación-Secretaría Nacional de Ciencia, Tecnología e Innovasión (SNI-SENACYT), Panama City 0816-02852, Panama
| | - Alejandro Llanes
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
| | - Mario Quijada R.
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
| | | | - German Guzmán
- Facultad de Medicina, Universidad de Panamá, Panama 4, Panama City 3366, Panama; (G.G.); (M.F.L.)
| | - Valli de la Guardia
- Maternidad del Hospital Santo Tomás, Panama City 0816-00383, Panama; (M.L.D.G.); (V.d.l.G.)
| | - Anabel García
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
| | - María F. Lucero
- Facultad de Medicina, Universidad de Panamá, Panama 4, Panama City 3366, Panama; (G.G.); (M.F.L.)
| | - Digna Wong
- Centros de Investigaciones Clínicas y Medicina Traslacional, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama;
| | - Rima Mcleod
- Toxoplasmosis Center, University of Chicago Medicine, Chicago, IL 60637, USA;
| | - Mariangela Soberon
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
| | - Zuleima Caballero E.
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Asociación de Interés Público (INDICASAT-AIP), Panama City 0843-01103, Panama; (C.F.); (D.V.-C.); (L.F.); (C.M.R.); (A.L.); (M.Q.R.); (A.G.); (M.S.)
- Sistema Nacional de Investigación-Secretaría Nacional de Ciencia, Tecnología e Innovasión (SNI-SENACYT), Panama City 0816-02852, Panama
| |
Collapse
|
28
|
The role of IL-12 in stimulating NK cells against Toxoplasma gondii infection: a mini-review. Parasitol Res 2021; 120:2303-2309. [PMID: 34110502 DOI: 10.1007/s00436-021-07204-w] [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] [Received: 03/14/2021] [Accepted: 05/31/2021] [Indexed: 10/21/2022]
Abstract
Toxoplasma gondii is an intracellular protozoan parasite that can remarkably infect, survive, and replicate in almost all mammalian cells and can cause severe neurological and ocular damage in immunocompromised individuals. It is known that Natural Killer cells (NK cells), as a type of cytotoxic lymphocyte, have critical protective roles in innate immunity during the T. gondii infection through releasing interferon gamma (IFN-γ). Interleukin 12 (IL-12) is a pivotal critical cytokine for the generation of IFN-γ-producing NK cells. Several studies have shown cytokines' impact on NK cell activation; and IL-2 has an important role with a potent stimulatory factor for NK cells. In this review, we summarized the mechanism of interleukin-12 production stimulation by T. gondii tachyzoites and discussed several factors affecting this mechanism.
Collapse
|
29
|
Szewczyk-Golec K, Pawłowska M, Wesołowski R, Wróblewski M, Mila-Kierzenkowska C. Oxidative Stress as a Possible Target in the Treatment of Toxoplasmosis: Perspectives and Ambiguities. Int J Mol Sci 2021; 22:ijms22115705. [PMID: 34071892 PMCID: PMC8198901 DOI: 10.3390/ijms22115705] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 12/16/2022] Open
Abstract
Toxoplasma gondii is an apicomplexan parasite causing toxoplasmosis, a common disease, which is most typically asymptomatic. However, toxoplasmosis can be severe and even fatal in immunocompromised patients and fetuses. Available treatment options are limited, so there is a strong impetus to develop novel therapeutics. This review focuses on the role of oxidative stress in the pathophysiology and treatment of T. gondii infection. Chemical compounds that modify redox status can reduce the parasite viability and thus be potential anti-Toxoplasma drugs. On the other hand, oxidative stress caused by the activation of the inflammatory response may have some deleterious consequences in host cells. In this respect, the potential use of natural antioxidants is worth considering, including melatonin and some vitamins, as possible novel anti-Toxoplasma therapeutics. Results of in vitro and animal studies are promising. However, supplementation with some antioxidants was found to promote the increase in parasitemia, and the disease was then characterized by a milder course. Undoubtedly, research in this area may have a significant impact on the future prospects of toxoplasmosis therapy.
Collapse
|
30
|
S Al-Malki E. Toxoplasmosis: stages of the protozoan life cycle and risk assessment in humans and animals for an enhanced awareness and an improved socio-economic status. Saudi J Biol Sci 2021; 28:962-969. [PMID: 33424388 PMCID: PMC7783816 DOI: 10.1016/j.sjbs.2020.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/29/2020] [Accepted: 11/01/2020] [Indexed: 12/14/2022] Open
Abstract
Toxoplasma gondii is a protozoan parasite distributed globally. It causes toxoplasmosis, which is prevalent in animals, birds, and soil. T. gondii infection leads to severe pathological impacts in immunodeficient patients and congenital cases. This review indicated that high prevalence groups had close contact with cats, dogs, consumed uncooked raw fruits, meat, or vegetables and the socio-economic level noted to be one of the crucial factors that influence toxoplasmosis. Toxoplasmosis infection is high in low-income countries and low in developed European countries. Immunosuppressed groups and pregnant women were the highly vulnerable groups. The epidemiology of the parasite enumerated various routes of infections; but consumption of T. gondii contaminated food was the major route of disease transmission. However, the role of meat and meat-producing animals on disease transmission remained unclear. Unfiltered water acts as the primary reservoir of toxoplasmosis transmission. The diagnostic methods for determining T. gondii infection are not the gold standard, and different approaches have been prescribed to analyze the infected populations based on the organs affected. Although toxoplasmosis was reported before 70 years, no appropriate solution noted to be recommended to treat this disease. Based on the present analyses, it concluded that the eradication of toxoplasmosis would be challenging from the world until people's socio-economic level is improved. The main aim of the present study was to analyze and update the disease transmission, epidemiology, and possible clinical interventions of toxoplasmosis.
Collapse
Affiliation(s)
- Esam S Al-Malki
- Department of Biology, College of Science in Zulfi, Majmaah University, Majmaah 11952, Saudi Arabia
| |
Collapse
|
31
|
Sokol-Borrelli SL, Coombs RS, Boyle JP. A Comparison of Stage Conversion in the Coccidian Apicomplexans Toxoplasma gondii, Hammondia hammondi, and Neospora caninum. Front Cell Infect Microbiol 2020; 10:608283. [PMID: 33344268 PMCID: PMC7744739 DOI: 10.3389/fcimb.2020.608283] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 11/06/2020] [Indexed: 01/31/2023] Open
Abstract
Stage conversion is a critical life cycle feature for several Apicomplexan parasites as the ability to switch between life forms is critical for replication, dissemination, pathogenesis and ultimately, transmission to a new host. In order for these developmental transitions to occur, the parasite must first sense changes in their environment, such as the presence of stressors or other environmental signals, and then respond to these signals by initiating global alterations in gene expression. As our understanding of the genetic components required for stage conversion continues to broaden, we can better understand the conserved mechanisms for this process and unique components and their contribution to pathogenesis by comparing stage conversion in multiple closely related species. In this review, we will discuss what is currently known about the mechanisms driving stage conversion in Toxoplasma gondii and its closest relatives Hammondia hammondi and Neospora caninum. Work by us and others has shown that these species have some important differences in the way that they (1) progress through their life cycle and (2) respond to stage conversion initiating stressors. To provide a specific example of species-specific complexities associated with stage conversion, we will discuss our recent published and unpublished work comparing stress responses in T. gondii and H. hammondi.
Collapse
Affiliation(s)
| | | | - Jon P. Boyle
- University of Pittsburgh, Department of Biological Sciences, Kenneth P. Dietrich School of Arts and Sciences, Pittsburgh, PA, United States
| |
Collapse
|
32
|
Attias M, Teixeira DE, Benchimol M, Vommaro RC, Crepaldi PH, De Souza W. The life-cycle of Toxoplasma gondii reviewed using animations. Parasit Vectors 2020; 13:588. [PMID: 33228743 PMCID: PMC7686686 DOI: 10.1186/s13071-020-04445-z] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/30/2020] [Indexed: 11/21/2022] Open
Abstract
Toxoplasma gondii is a protozoan parasite that is the causative agent of toxoplasmosis, an infection with high prevalence worldwide. Most of the infected individuals are either asymptomatic or have mild symptoms, but T. gondii can cause severe neurologic damage and even death of the fetus when acquired during pregnancy. It is also a serious condition in immunodeficient patients. The life-cycle of T. gondii is complex, with more than one infective form and several transmission pathways. In two animated videos, we describe the main aspects of this cycle, raising questions about poorly or unknown issues of T. gondii biology. Original plates, based on electron microscope observations, are also available for teachers, students and researchers. The main goal of this review is to provide a source of learning on the fundamental aspects of T. gondii biology to students and teachers contributing for better knowledge and control on this important parasite, and unique cell model. In addition, drawings and videos point to still unclear aspects of T. gondii lytic cycle that may stimulate further studies.![]()
Collapse
Affiliation(s)
- Márcia Attias
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. .,Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
| | | | | | - Rossiane C Vommaro
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo Henrique Crepaldi
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Wanderley De Souza
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| |
Collapse
|
33
|
Abdallah MC, Kamel M, Karima B, Samir A, Mohammed Hocine B, Djamel K, Rachid K, Khatima AO. First report of Toxoplasma gondii infection and associated risk factors in the dromedary camel (Camelus dromedarius) population in south East Algeria. VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS 2020; 22:100475. [PMID: 33308754 DOI: 10.1016/j.vprsr.2020.100475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/21/2020] [Accepted: 09/22/2020] [Indexed: 11/19/2022]
Abstract
The study aimed at assessing the prevalence of toxoplasmosis due to T. gondii in dromedaries by the ELISA test and to identify associated risk factors. A cross-sectional study was performed on 320 dromedaries (Camelus dromedaries) from January to March 2018 in four provinces of southeastern Algeria (Biskra, El- Oued, Ouargla, and Ghardaia). A structured questionnaire was used to collect data on individual characteristics, husbandry management and health conditions. The ELISA test revealed an overall seroprevalence of 15% (CI95%: 11.5-19.33). Possible factors associated with T. gondii infection were analyzed by univariate analysis and multivariate logistic regression. Age, husbandry system, and study area were identified as risk factors for T. gondii infection. Increased seropositivity was observed in old animals older than 10 years (OR = 2.81; CI: 1.51-3.87; p = 0.003), two times higher in animals living in the intensive husbandry system (OR = 2.42; CI: 1.3-3.07; p = 0.003), and four times higher in animals living in Biskra (OR = 4.2; CI: 1.21-9.85; p = 0.0001) than other provinces. The identification of the risk factors determines the type of measures and strategies to be applied to reduce, control and prevent T. gondii infection in dromedaries and thereby reducing human infection risks.
Collapse
Affiliation(s)
- Mohamed-Cherif Abdallah
- Ecole Nationale Supérieure Vétérinaire d'Alger. BP 161. Issad Abbes, Oued Smar, Alger, Algeria
| | - Miroud Kamel
- Laboratoire « Epidémio-surveillance, santé, productions et reproduction, expérimentation et thérapie cellulaire des animaux domestiques et sauvages (ESSPRETCADS) », Institut des Sciences Vétérinaires, Université Chadli Bendjedid El-Tarf, Algeria
| | - Benfodil Karima
- Ecole Nationale Supérieure Vétérinaire d'Alger. BP 161. Issad Abbes, Oued Smar, Alger, Algeria
| | - Ansel Samir
- Ecole Nationale Supérieure Vétérinaire d'Alger. BP 161. Issad Abbes, Oued Smar, Alger, Algeria
| | - Benaissa Mohammed Hocine
- Centre de Recherche Scientifique et Technique sur les Régions Arides (CRSTRA), Touggourt, Algeria
| | - Khelef Djamel
- Ecole Nationale Supérieure Vétérinaire d'Alger. BP 161. Issad Abbes, Oued Smar, Alger, Algeria
| | - Kaidi Rachid
- Laboratoire des Biotechnologie et Reproduction Animale (LBRA), Institut des Sciences Vétérinaires Blida, Algeria
| | - Ait-Oudhia Khatima
- Ecole Nationale Supérieure Vétérinaire d'Alger. BP 161. Issad Abbes, Oued Smar, Alger, Algeria; Laboratoire des Biotechnologie et Reproduction Animale (LBRA), Institut des Sciences Vétérinaires Blida, Algeria.
| |
Collapse
|
34
|
Molecular detection of the B1 gene of Toxoplasma gondii in blood samples of female sheep and goats in Tebessa, northeastern Algeria. Comp Immunol Microbiol Infect Dis 2020; 72:101530. [PMID: 32836008 DOI: 10.1016/j.cimid.2020.101530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 07/22/2020] [Accepted: 08/04/2020] [Indexed: 11/22/2022]
Abstract
Toxoplasmosis, caused by Toxoplasma gondii, is a parasitic zoonosis of crucial medical and veterinary importance. It is mainly diagnosed by serological methods which are limited by insufficient sensitivity. Therefore, it is necessary to rely on direct detection of the parasite. The present study was aimed for direct detection of the parasite DNA in the blood samples of sheep and goats using PCR targeting the B1 gene. The study was carried out in 20 small ruminant farms between 2016 and 2018 in Tebessa region, part of north-eastern Algeria, and concerned 227 and 91 aborted female sheep and goats respectively. DNA of T. gondii was detected in 35.24 % and 18.68 % blood samples of sheep and goats respectively (p < 0.001). Molecular prevalence was higher in 13-24 month old female sheep (93.33 %) than 1-12 month old female sheep (14.37 %) (p < 0.0001). While, in goats no significant difference was observed in relation to age. Female sheep that aborted between 1-60 days of gestation were found to be more infected (46.41 %) compared to females that aborted between 61-120 days of gestation (12.16 %) (p < 0.001). Whereas, female goats that aborted between 61-120 days of gestation were found to be more infested (30.77 %) compared to females that aborted between 1-60 days of gestation (16.67 %) (p < 0.001). This study revealed that small ruminants are highly infected with T. gondii, which represents a major risk for the consumer in Tebessa. Further studies are needed to improve our knowledge of the different genotypes of T. gondii infecting small ruminant population.
Collapse
|
35
|
Bezerra-Santos MA, Nogueira BCF, Yamatogi RS, Campos AK. Molecular detection of Toxoplasma gondii in opossums from Southeastern, Brazil. J Parasit Dis 2020; 44:661-665. [PMID: 32801521 DOI: 10.1007/s12639-020-01243-3] [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: 05/05/2020] [Accepted: 07/09/2020] [Indexed: 10/23/2022] Open
Abstract
Toxoplasmosis is a worldwide-distributed zoonotic disease of great relevance to public health. Many wildlife species, including marsupials of the genus Didelphis, are considered hosts for Toxoplasma gondii, which makes them to have a possible role in the dispersion and maintenance of this parasite in nature. This study provides data on the molecular detection of T. gondii in D. aurita opossums from an urbanized area of Southeastern Brazil. Animals were captured and blood and/or spleen samples were collected. Real Time PCR was performed for the detection of T. gondii. From the opossums captured, 26.3% (n = 15/57) scored positive, with a frequency of 21.6% (n = 11/51) in blood, and 66.7% (n = 6/9) in spleen samples. BLAST analysis demonstrated 100% identity and 100% cover query with sequences of T. gondii available in GenBank database. Data herein reported present great public health importance, since Didelphis spp. are usually observed inhabiting close to human dwellings, which facilitates their contact with people and domestic animals, and consequently, the transmission of zoonotic agents. However, further studies are needed to elucidate whether these opossums play an important role in the zoonotic cycle of T. gondii in urban areas of Brazil.
Collapse
Affiliation(s)
- Marcos Antônio Bezerra-Santos
- Department of Veterinary Medicine, Federal University of Viçosa, Av. PH Rolfs, s/n, University Campus, Viçosa, MG 36570-900 Brazil
| | - Bárbara Cristina Félix Nogueira
- Department of Veterinary Medicine, Federal University of Viçosa, Av. PH Rolfs, s/n, University Campus, Viçosa, MG 36570-900 Brazil
| | - Ricardo Seiti Yamatogi
- Department of Veterinary Medicine, Federal University of Viçosa, Av. PH Rolfs, s/n, University Campus, Viçosa, MG 36570-900 Brazil
| | - Artur Kanadani Campos
- Department of Veterinary Medicine, Federal University of Viçosa, Av. PH Rolfs, s/n, University Campus, Viçosa, MG 36570-900 Brazil
| |
Collapse
|
36
|
A Review on the Present Advances on Studies of Toxoplasmosis in Eastern Africa. BIOMED RESEARCH INTERNATIONAL 2020; 2020:7135268. [PMID: 32724808 PMCID: PMC7364236 DOI: 10.1155/2020/7135268] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 03/19/2020] [Indexed: 12/18/2022]
Abstract
Toxoplasmosis is a zoonotic infection caused by the protozoan parasite, Toxoplasma gondii. It was discovered over 100 years ago and is credited as the most successful parasitic organism worldwide, able to infect and multiply in all warm blooded animals including an estimated 2.3 billion people. Toxoplasmosis is asymptomatic in immunocompetent individuals. Infection in the developing fetus and immunocompromised individuals can cause severe clinical disease. Toxoplasmosis is also a major cause of reproductive failure in livestock. The economic impact of toxoplasmosis is believed to be substantial. Factors associated with toxoplasmosis infection have been defined. Eastern Africa region is a high-risk area mainly due to the close association of humans and livestock as well as sociocultural practices, poor environmental hygiene, and poverty. The present paper provides a narrative review of published data on toxoplasmosis in Eastern Africa.
Collapse
|
37
|
Fábrega L, Restrepo CM, Torres A, Smith D, Chan P, Pérez D, Cumbrera A, Caballero E. Z. Frequency of Toxoplasma gondii and Risk Factors Associated with the Infection in Stray Dogs and Cats of Panama. Microorganisms 2020; 8:microorganisms8060927. [PMID: 32575618 PMCID: PMC7356863 DOI: 10.3390/microorganisms8060927] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/12/2020] [Accepted: 06/17/2020] [Indexed: 01/06/2023] Open
Abstract
Stray animals such as dogs and cats have an important role in maintaining the transmission cycles and dissemination of Toxoplasma gondii. Therefore, the objective of this study was to evaluate the frequency of T. gondii in stray dogs and cats in six different regions of Panama and determine risk factors associated with the dynamics of infection in each of the studied regions. Data were obtained using serological tests for the detection of anti-T. gondii IgG and IgM antibodies. The results of this study revealed an overall infection frequency of 23.73%. The infection frequencies found in dog and cat populations were 25.70% and 21.93% respectively, showing no statistically significant difference. Risk factor correlations suggested different infection dynamics depending on the region analyzed. The San Miguelito, North and West regions were more associated with positive cases in dogs with an age range greater than 13 months. Conversely, the Metro, Central and East regions were more associated with negative cases in cats with age ranging between 0 and 5 months. Infection of the parasite in stray animals can be influenced by intrinsic characteristics of each region, which can potentiate different risk factors associated with the different routes of transmission.
Collapse
Affiliation(s)
- Lorena Fábrega
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT-AIP), Panamá 0801, Panama; (L.F.); (C.M.R.)
- Departamento de Clínicas y Cirugías Veterinarias, Facultad de Medicina Veterinaria, Universidad de Panamá, Campus Harmodio Árias Madrid (Curundu), Panamá 4, Apartado 3366, Panama;
| | - Carlos M. Restrepo
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT-AIP), Panamá 0801, Panama; (L.F.); (C.M.R.)
- Sistema Nacional de Investigación–Secretaría Nacional de Ciencia, Tecnología e Innovasión (SNI-SENACYT), Ciudad del Saber (Clayton), Apartado 0816-02852, Panama
| | - Alicia Torres
- Departamento de Clínicas y Cirugías Veterinarias, Facultad de Medicina Veterinaria, Universidad de Panamá, Campus Harmodio Árias Madrid (Curundu), Panamá 4, Apartado 3366, Panama;
- Complejo Hospitalario Veterinario de Corozal, Corregimiento de Ancón, calle Hospital, edificio 6553, 6554, 6555, Panamá 4, Apartado 3366, Panama
| | - Diorene Smith
- Parque Municipal Summit, Corregimiento de Ancón, Avenida Gaillard, Zona 1, Apartado 503, Panama;
| | - Patricia Chan
- Fundación Spay Panamá. Bethania, Apartado 0818-00423, Panama;
| | - Dimas Pérez
- Centro Medico Veterinarius, Apartado 08001, Panama;
| | - Alberto Cumbrera
- Unidad de Sistema de Información Geográfica de la Dirección de Investigación y Desarrollo Tecnológico, Instituto Conmemorativo Gorgas de Estudios de la Salud (Calidonia), Apartado 0816-02593, Panama;
| | - Zuleima Caballero E.
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT-AIP), Panamá 0801, Panama; (L.F.); (C.M.R.)
- Sistema Nacional de Investigación–Secretaría Nacional de Ciencia, Tecnología e Innovasión (SNI-SENACYT), Ciudad del Saber (Clayton), Apartado 0816-02852, Panama
- Correspondence: ; Tel.: +507-517-0718
| |
Collapse
|
38
|
Martínez-Rodriguez LC, Tafur-Gómez GA, Guzman-Barragan BL. Toxoplasma gondii in small ruminants in northeastern areas of Colombia: Seroprevalence and risk factors. Parasite Epidemiol Control 2020; 10:e00147. [PMID: 32373723 PMCID: PMC7191648 DOI: 10.1016/j.parepi.2020.e00147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 02/21/2020] [Accepted: 03/28/2020] [Indexed: 01/23/2023] Open
Abstract
Sheep and goats are susceptible to infections with Toxoplasma gondii and could play an important role in the transmission of the zoonotic parasite to human. We conducted a cross sectional study to estimate the seroprevalence and to assess the risk factors for T. gondii seropositivity in small ruminants under traditional husbandry systems. This study was carried out from November 2015 to April 2016 in randomly selected small ruminants (n = 1038) from 48 farms located in Colombia, in the departments of northern Cesar in the north and La Guajira in the south. An indirect ELISA was used to detect IgG antibodies to T. gondii in the animals. A standardized questionnaire was used to obtain information on putative risk factors. We conducted the association analyses by using univariable and multivariate logistic regression and report odds ratios (OR) with 95% confidence interval (C.I). The overall seroprevalence in small ruminants was 23.5% (C.I: 21–26.2%). Sheep showed a higher seroprevalence (25.1% C.I: 22.4–28.6%) than goats (18.4% C.I: 22.4–28.6%). The association analysis recognized as risk factors for T. gondii seropositivity farming pigs in addition to small ruminants (OR = 1.96 C.I: 1.414–2.743), the inexistence of manure heap (OR = 2.254 C.I: 1.480–3.433) and drinking water from locally aqueducts (OR = 1.489 C.I: 1.006–2.204). The results of the study confirmed that exposure to T. gondii is common in sheep and goats in dry Caribbean regions of Colombia.
Collapse
Affiliation(s)
- Lorena C Martínez-Rodriguez
- Grupo de Investigación Ciencia UDES, Programa de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Santander, campus Valledupar, Colombia
| | | | | |
Collapse
|
39
|
McKenny L, O'Handley R, Kovaliski J, Mutze G, Peacock D, Lanyon S. Evidence of infection with Toxoplasma gondii and Neospora caninum in South Australia: using wild rabbits as a sentinel species. Aust Vet J 2020; 98:380-387. [PMID: 32350856 DOI: 10.1111/avj.12951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 03/07/2020] [Accepted: 03/23/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this study was to utilise wild rabbits (Oryctolagus cuniculus) as a sentinel species to study levels of environmental contamination with N. caninum and T. gondii in South Australia, and to examine associations with rainfall, climate and land use. DESIGN Toxoplasma gondii (T. gondii), an apicomplexan parasite, causes the clinical disease toxoplasmosis, which can affect sheep as well as humans and many other animals. Neosporosis, the clinical disease caused by closely related Neospora caninum (N. caninum), causes abortions in cattle, with large economic impacts to cattle industries. METHODS Aliquots of wild rabbit (Oryctolagus cuniculus) serum were obtained from twelve sites across South Australia over a period of eighteen years, with a total of 2114 samples. An in-house Modified Agglutination Test (MAT) was developed, and samples were screened for the specific antibodies against both T.gondii and N. caninum. RESULTS Overall, 9.9% of samples screened for T. gondii tested positive and 6.1% of samples screened for N. caninum tested positive. There was no difference observed in seroprevalence of T.gondii specific antibodies between samples collected throughout summer, autumn, winter or spring. By contrast, a significantly higher (p=0.030) seroprevalence of N. caninum specific antibodies was observed in spring than any other season. T. gondii and N. caninum antibodies were discovered at sites across a broad area of South Australia, indicating these environments maybe infected with both parasites. CONCLUSION Results provide evidence that suggests N. caninum oocysts may have different survival characteristics, such as varying tolerances to low relative humidity, than T. gondii oocysts.
Collapse
Affiliation(s)
- L McKenny
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia, Australia
| | - R O'Handley
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia, Australia
| | - J Kovaliski
- Invasive Species, Biosecurity SA, Primary Industries and Regions SA, Urrbrae, South Australia, Australia
| | - G Mutze
- Invasive Species, Biosecurity SA, Primary Industries and Regions SA, Urrbrae, South Australia, Australia
| | - D Peacock
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia, Australia.,Invasive Species, Biosecurity SA, Primary Industries and Regions SA, Urrbrae, South Australia, Australia
| | - S Lanyon
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia, Australia
| |
Collapse
|
40
|
Azadi Y, Ahmadpour E, Ahmadi A. Targeting Strategies in Therapeutic Applications of Toxoplasmosis: Recent Advances in Liposomal Vaccine Delivery Systems. Curr Drug Targets 2020; 21:541-558. [DOI: 10.2174/1389450120666191023151423] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 11/22/2022]
Abstract
Toxoplasma gondii is a prevalent parasitic pathogen that infected over one-third of the global population. Toxoplasmosis is diagnosed by isolating the parasite and detecting host antibodies. In contrast, the main problem with diagnosis relates to the sensitivity and specificity of the tests. Currently, treatment with pyrimethamine and sulfadiazine is recommended, despite their side effects and toxicity to humans. Moreover, the absence of a vaccine to completely protect against this infection is the main obstacle to the effective treatment and prevention of toxoplasmosis. Recently, nanoparticles and nanomaterials have been studied as delivery systems for the immunization and treatment of T. gondii infections. One of the most important applications of liposomes is drug and vaccine delivery, due to their biodegradability, low inherent toxicity, and immunogenicity. Liposomes are flexible delivery systems and immunological adjuvants able not only to load diverse antigens, such as proteins, peptides, nucleic acids, and carbohydrates but also to combine them with immunostimulators. Liposomes have the incredible potential within the development of modern types of vaccines and numerous endeavors have been made to improve the effectiveness of vaccines in recent years. In this review, we concentrate on the viable targeting strategies of liposome-based vaccine delivery systems to prevent, control and treat toxoplasmosis.
Collapse
Affiliation(s)
- Yaghob Azadi
- Infectious and Tropical Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ehsan Ahmadpour
- Infectious and Tropical Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhossein Ahmadi
- Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| |
Collapse
|
41
|
Serological Survey and Associated Risk Factors on Toxoplasma gondii Infection in Goats in Mila District, Algeria. FOLIA VETERINARIA 2020. [DOI: 10.2478/fv-2020-0007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Toxoplasma gondii is a protozoan parasite prevalent in humans and other animals worldwide having medical and veterinary importance on account of reproductive failure causing significant socioeconomic losses. The aims of this study were to estimate the seroprevalence of T. gondii infection in goats, determined the possible risk factors associated, and evaluate the performances of the latex agglutination test (LAT) to anti-T. gondii antibodies screening using the indirect Enzyme-linked immunosorbent assay as a reference test (iELISA). A total of 184 serum samples from goats reared on 25 farms in Mila district from North-Eastern Algeria were collected and tested for anti-T. gondii IgG antibodies using two commercial serological tests (ELISA and LAT). A seroprevalence rate of 71.73 % and 63.58 % was obtained by both ELISA and LAT tests, respectively. The analysis of some factors thought to be related to the onset of this infection such as age, sex, management system, locality and presence of cats showed no significant relationship (P > 0.05); these factors did not seem to affect the frequency of the infection. The seropositivity level of T. gondii was significantly higher in aborted goats (P = 0.007), which suggested that they may play a significant role in pregnancy failure. In the concordance evaluation between the two serological tests (ELISA and LAT), the Cohen’s Kappa value was calculated and the results showed a K of 0.519 (p = 0.000) belonging to the range of 0.41—0.60 indicating just average agreement. The results of the Mc Nemar test showed that both tests gave significantly different results and seropositivity values (P < 0.05). The high prevalence observed in this study indicated a widespread exposure to T. gondii from goats and the potential risk of T. gondii infection for humans in North-Eastern Algeria. These results elucidate the challenges of applying serology to estimate goat exposure to T. gondii. The choice between the two serological tests will depend on their performances, as well as the availability of the equipment, laboratory conditions and the number of samples to be tested.
Collapse
|
42
|
Naghi Vishteh M, Javadi Mamaghani A, Rashidi S, Seyyed Tabaei SJ, Jeddi-Tehrani M. Peptide-Based Monoclonal Antibody Production Against SAG1 (P30) Protein of Toxoplasma gondii. Monoclon Antib Immunodiagn Immunother 2020; 39:51-56. [DOI: 10.1089/mab.2019.0041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Mohadeseh Naghi Vishteh
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirreza Javadi Mamaghani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Parasitology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sama Rashidi
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyyed Javad Seyyed Tabaei
- Department of Parasitology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahmood Jeddi-Tehrani
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| |
Collapse
|
43
|
The Bradyzoite: A Key Developmental Stage for the Persistence and Pathogenesis of Toxoplasmosis. Pathogens 2020; 9:pathogens9030234. [PMID: 32245165 PMCID: PMC7157559 DOI: 10.3390/pathogens9030234] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 12/19/2022] Open
Abstract
Toxoplasma gondii is a ubiquitous parasitic protist found in a wide variety of hosts, including a large proportion of the human population. Beyond an acute phase which is generally self-limited in immunocompetent individuals, the ability of the parasite to persist as a dormant stage, called bradyzoite, is an important aspect of toxoplasmosis. Not only is this stage not eliminated by current treatments, but it can also reactivate in immunocompromised hosts, leading to a potentially fatal outcome. Yet, despite its critical role in the pathology, the bradyzoite stage is relatively understudied. One main explanation is that it is a considerably challenging model, which essentially has to be derived from in vivo sources. However, recent progress on genetic manipulation and in vitro differentiation models now offers interesting perspectives for tackling key biological questions related to this particularly important developmental stage.
Collapse
|
44
|
Abdelbaset AE, Hamed MI, Abushahba MFN, Rawy MS, Sayed ASM, Adamovicz JJ. Toxoplasma gondii seropositivity and the associated risk factors in sheep and pregnant women in El-Minya Governorate, Egypt. Vet World 2020; 13:54-60. [PMID: 32158151 PMCID: PMC7020121 DOI: 10.14202/vetworld.2020.54-60] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 11/13/2019] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND AND AIM The cosmopolite protozoan, Toxoplasma gondii, has a significant economic and medical impact. Cats traditionally play a predominant role in the disease maintenance cycle; however, humans can be infected as a result of milk and meat consumption of Toxoplasma-infected livestock. In addition, infected pregnant women, even symptomless, can pass the disease to their unborn fetus. The limited clinical records and absence of specific national educational programs in countries like Egypt underscore the need for periodic toxoplasmosis disease evaluation. Here, we identified T. gondii seroprevalence among sheep and pregnant women and the associated risk factors in El-Minya Governorate, Egypt. MATERIALS AND METHODS Using peripheral blood, we detected T. gondii-specific antibodies in 151 sheep and 96 pregnant women sera from El-Minya Governorate using latex agglutination and indirect enzyme-linked immunosorbent assay. The impact of different environmental and behavioral risk factors identified with in-person interviews and serology results on acquiring toxoplasmosis was statistically analyzed. RESULTS The overall toxoplasmosis seroprevalence was 39.1% and 22.9% in sheep and pregnant women, respectively. Significantly higher seroprevalence was correlated with increasing sheep age and geographical location. Nonetheless, no statistical significance was found based on abortion history and pregnancy status of the examined sheep. Exposure factors important for pregnant women included pregnancy trimester, contact with cats, and the habit of eating undercooked sheep meat, which all had a statistically significant association with Toxoplasma seropositivity. CONCLUSION The current study confirms increased antibodies against toxoplasmosis in both sheep and pregnant women in El-Minya Governorate and a clear association between women's age, contact with cats, and the habit of eating undercooked sheep meat and seroreactivity to T. gondii. These results strongly suggest the need for a more comprehensive epidemiological study and public health awareness education for toxoplasmosis.
Collapse
Affiliation(s)
- Abdelbaset E. Abdelbaset
- Department of Animal Medicine (Clinical Laboratory Diagnosis), Faculty of Veterinary Medicine, Assiut University, 71526-Assiut, Egypt
| | - Maha I. Hamed
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, 71526 Assiut, Egypt
| | - Mostafa F. N. Abushahba
- Department of Zoonoses, Faculty of Veterinary Medicine, Assiut University, 71526 Assiut, Egypt
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, Missouri 65211-5130, USA
| | - Mohamed S. Rawy
- Department of Theriogenology, Faculty of Veterinary Medicine, Minia University, El-Minya, Egypt
| | - Amal S. M. Sayed
- Department of Zoonoses, Faculty of Veterinary Medicine, Assiut University, 71526 Assiut, Egypt
| | - Jeffrey J. Adamovicz
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, Missouri 65211-5130, USA
| |
Collapse
|
45
|
Blaga R, Aubert D, Thébault A, Perret C, Geers R, Thomas M, Alliot A, Djokic V, Ortis N, Halos L, Durand B, Mercier A, Villena I, Boireau P. Toxoplasma gondii in beef consumed in France: regional variation in seroprevalence and parasite isolation. ACTA ACUST UNITED AC 2019; 26:77. [PMID: 31868577 PMCID: PMC6927255 DOI: 10.1051/parasite/2019076] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 12/05/2019] [Indexed: 02/01/2023]
Abstract
In France, the consumption of cattle and sheep meat appears to be a risk factor for infection of pregnant women with Toxoplasma gondii. Several nation-wide surveys in France have investigated the prevalence of T. gondii in sheep and pig meat, but little is known at present about the prevalence of the parasite in beef. The main objective of the present cross-sectional survey was to estimate the seroprevalence of T. gondii infection in beef consumed in France. A secondary objective was to attempt to isolate T. gondii from cattle tissues and to study the geographical and age variations of this seroprevalence. The overall estimate of seroprevalence of T. gondii in bovine carcasses (n = 2912), for a threshold of 1:6 was 17.38%. A strong age effect was observed (p < 0.0001) with a seroprevalence of 5.34% for calves (<8 months) and 23.12% for adults (>8 months). Seroprevalence estimates given by area of birth and area of slaughtering for adults showed that the areas with the highest seroprevalence were not the same between these two variables. Only two strains, corresponding to genotype II, were isolated from heart samples, indicating that there is a limited risk of human infection with T. gondii, which needs to be correlated with the food habit of consuming raw or undercook (bleu or saignant) beef. However, new questions have emerged, especially concerning the isolation of parasites from beef and the precise role of bovines, generally described as poor hosts for T. gondii, in human infection.
Collapse
Affiliation(s)
- Radu Blaga
- UMR BIPAR, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, INRA, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France - UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| | - Dominique Aubert
- National Reference Center on Toxoplasmosis, Toxoplasma Biological Resources Center, CHU Reims and EA7510, SFR CAP-Santé, University of Reims Champagne-Ardenne, USC EpiToxo ANSES, 51095 Reims, France
| | - Anne Thébault
- ANSES, Direction de l'évaluation des risques, Unité Méthodes et Etudes, 94700 Maisons-Alfort, France
| | - Catherine Perret
- UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| | - Régine Geers
- National Reference Center on Toxoplasmosis, Toxoplasma Biological Resources Center, CHU Reims and EA7510, SFR CAP-Santé, University of Reims Champagne-Ardenne, USC EpiToxo ANSES, 51095 Reims, France
| | - Myriam Thomas
- UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| | - Annie Alliot
- UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| | - Vitomir Djokic
- UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| | - Naïma Ortis
- National Reference Center on Toxoplasmosis, Toxoplasma Biological Resources Center, CHU Reims and EA7510, SFR CAP-Santé, University of Reims Champagne-Ardenne, USC EpiToxo ANSES, 51095 Reims, France
| | - Lénaïg Halos
- UMR BIPAR, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, INRA, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France - UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| | - Benoît Durand
- Epidemiology Unit, Paris-Est University, Laboratory for Animal Health, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 94700 Maisons-Alfort, France
| | - Aurélien Mercier
- INSERM, Université de Limoges, CHU Limoges, UMR 1094, Institut d'Epidémiologie et de Neurologie Tropicale, GEIST, 87000 Limoges, France - National Reference Center on Toxoplasmosis, Toxoplasma Biological Resources Center, CHU Limoges, 87042 Limoges, France
| | - Isabelle Villena
- National Reference Center on Toxoplasmosis, Toxoplasma Biological Resources Center, CHU Reims and EA7510, SFR CAP-Santé, University of Reims Champagne-Ardenne, USC EpiToxo ANSES, 51095 Reims, France
| | - Pascal Boireau
- UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, National Reference Laboratory for Foodborne Parasites, Animal Health Laboratory, 14 rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| |
Collapse
|
46
|
Le Roux D, Djokic V, Morisse S, Chauvin C, Doré V, Lagrée AC, Voisin D, Villain Y, Grasset-Chevillot A, Boursin F, Su C, Perrot S, Vallée I, Seche E, Blaga R. Evaluation of immunogenicity and protection of the Mic1-3 knockout Toxoplasma gondii live attenuated strain in the feline host. Vaccine 2019; 38:1457-1466. [PMID: 31864855 DOI: 10.1016/j.vaccine.2019.11.076] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/18/2019] [Accepted: 11/27/2019] [Indexed: 01/12/2023]
Abstract
Toxoplasmosis is a zoonotic disease caused by the parasite Toxoplasma gondii. Up to a third of the global human population is estimated to carry a T. gondii infection, which can result in severe complications in immunocompromised individuals and pregnant women. Humans and animals can become infected by ingesting either tissue cysts containing T. gondii bradyzoites, from raw or undercooked meat, or sporulated oocysts from environmental sources. T. gondii oocysts are released in the faeces of cats and other felids, which are the parasite's definitive hosts, leading to environmental contamination. Therefore, vaccination of the feline host against T. gondii is an interesting strategy to interrupt the parasitic life cycle and subsequently limit contamination of intermediate hosts. With this goal in mind, we tested in cats, an attenuated live strain of T. gondii deleted for the Mic1 and Mic3 genes (Mic1-3KO) that was previously shown to be an efficient vaccine candidate in mouse and sheep models. Subcutaneous or oral vaccination routes induced a high specific antibody titer in the cat sera, indicating that the Mic1-3KO strain is immunogenic for cats. To assess protection induced by the vaccine candidate strain, we followed oocysts shedding by vaccinated cats, after oral challenge with a T. gondii wild-type strain. Surprisingly, a high antibody titer did not prevent cats from shedding oocysts from the challenge strain, regardless of the vaccination route. Our results show that the Mic1-3KO vaccine candidate is immunogenic in the feline host, is well tolerated and safe, but does not confer protection against oocysts shedding after natural infection with wild type T. gondii. This result highlights the particular relationship between T. gondii and its unique definitive host, which indicates the need for further investigations to improve vaccination strategies to limit environmental and livestock contaminations.
Collapse
Affiliation(s)
- Delphine Le Roux
- UMR BIPAR, INRAE, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, F-94700, France.
| | - Vitomir Djokic
- UMR BIPAR, INRAE, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, F-94700, France
| | - Solen Morisse
- Vitamféro, Université François Rabelais - UFR des Sciences Pharmaceutiques, Tours, F-37200, France
| | - Clément Chauvin
- UMR BIPAR, INRAE, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, F-94700, France
| | - Vanessa Doré
- BioPôle Alfort, Ecole Nationale Vétérinaire d'Alfort, Maisons-Alfort, F-94700, France
| | - Anne-Claire Lagrée
- UMR BIPAR, INRAE, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, F-94700, France
| | - Déborah Voisin
- UMR BIPAR, INRAE, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, F-94700, France
| | - Yohan Villain
- UMR BIPAR, INRAE, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, F-94700, France
| | - Aurélie Grasset-Chevillot
- UMR BIPAR, Anses, Ecole Nationale Vétérinaire d'Alfort, INRAE, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France
| | - Fanny Boursin
- Vitamféro, Université François Rabelais - UFR des Sciences Pharmaceutiques, Tours, F-37200, France
| | - Chunlei Su
- Department of Microbiology, University of Tennessee, Knoxville, United States of America
| | - Sébastien Perrot
- BioPôle Alfort, Ecole Nationale Vétérinaire d'Alfort, Maisons-Alfort, F-94700, France
| | - Isabelle Vallée
- UMR BIPAR, Anses, Ecole Nationale Vétérinaire d'Alfort, INRAE, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France
| | - Edouard Seche
- Vitamféro, Université François Rabelais - UFR des Sciences Pharmaceutiques, Tours, F-37200, France
| | - Radu Blaga
- UMR BIPAR, INRAE, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, F-94700, France
| |
Collapse
|
47
|
Oliveira GMSD, Simões JM, Schaer RE, Freire SM, Nascimento RJM, Pinheiro AMCDM, Carvalho SMS, Mariano APM, Carvalho RCD, Munhoz AD. Frequency and factors associated with Toxoplasma gondii infection in pregnant women and their pets in Ilhéus, Bahia, Brazil. Rev Soc Bras Med Trop 2019; 52:e20190250. [PMID: 31800920 DOI: 10.1590/0037-8682-0250-2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 11/06/2019] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Toxoplasmosis is an asymptomatic disease that can lead to systemic disease in the fetus of pregnant women with primary infection. This study aimed to determine the prevalence of toxoplasmosis, associated factors, and correlation between the serology of pregnant women and their pets, in the municipality of Ilhéus, Bahia, Brazil. METHODS This cross-sectional study was conducted in 196 pregnant women and their cats or dogs (n=89). Semi-structured interviews were conducted and serum samples from the pregnant women were tested to detect IgM and IgG antibodies against Toxoplasma gondii, and avidity tests were performed for IgM-positive samples. The serum collected from pets were tested for IgG antibodies, and IgM antibodies in cats. A non-conditional logistic regression analysis was performed to identify infection-associated factors. RESULTS IgG and IgM antibodies were detected in 67.9% (133/196) and 1.5% (3/196) samples, respectively, for women with an avidity of over 60%. Age ≥ 25 and the presence of cats in the vicinity were found to be associated with infection, while the level of education and previous orientation toward prevention of toxoplasmosis were protective factors in pregnant women. IgG antibodies were detected in 46.1% (41/89) of the animals, and cats were found to be negative for IgM. For the animals, age ≥ 1 year was a factor associated with infection. There was no correlation between serology of the pregnant women and the animals (p=0.15). CONCLUSIONS An elevated prevalence of toxoplasmosis was detected in the region. Therefore, the adoption of preventive measures by public healthcare bodies is recommended.
Collapse
Affiliation(s)
| | - Juçara Magalhães Simões
- Universidade Federal da Bahia, Instituto de Ciências da Saúde, Laboratório de Imunologia e Biologia Molecular, Salvador, BA, Brasil
| | - Robert Eduard Schaer
- Universidade Federal da Bahia, Instituto de Ciências da Saúde, Laboratório de Imunologia e Biologia Molecular, Salvador, BA, Brasil
| | - Songeli Menezes Freire
- Universidade Federal da Bahia, Instituto de Ciências da Saúde, Laboratório de Imunologia e Biologia Molecular, Salvador, BA, Brasil
| | - Roberto José Meyer Nascimento
- Universidade Federal da Bahia, Instituto de Ciências da Saúde, Laboratório de Imunologia e Biologia Molecular, Salvador, BA, Brasil
| | | | | | - Ana Paula Melo Mariano
- Universidade Estadual de Santa Cruz, Departamento de Ciências Biológicas, Ilhéus, BA, Brasil
| | | | - Alexandre Dias Munhoz
- Universidade Estadual de Santa Cruz, Departamento de Ciências Agrárias e Ambientais, Ilhéus, BA, Brasil
| |
Collapse
|
48
|
Velázquez-Hernández N, Avilés Ávila AY, Rivas-González MA, Delgado-González SP, Alvarado-Félix GA, Alvarado-Félix ÁO, Beristain-Garcia I, Alvarado-Esquivel C. Knowledge and practices regarding toxoplasmosis in housewives: A cross sectional study in a northern Mexican city. PLoS One 2019; 14:e0222094. [PMID: 31498820 PMCID: PMC6733448 DOI: 10.1371/journal.pone.0222094] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 08/21/2019] [Indexed: 12/25/2022] Open
Abstract
We aimed to determine the knowledge and practices regarding toxoplasmosis among housewives in the northern Mexican city of Durango. One hundred eighty-five women (mean age: 41.27 ± 12.40 years old) with an occupation of housewife were studied. A self-administered questionnaire was used. This tool included items about the parasite Toxoplasma gondii, its transmission routes, general clinical, diagnostic, and treatment aspects of toxoplasmosis, and practices to avoid infection. A minority (<10%) of women knew about the parasite, the disease, how the transmission occurs, the clinical manifestations, how an infection is diagnosed, the treatment, and how to avoid toxoplasmosis. Some women knew that cats can transmit T. gondii infection (20%), and that the parasite can be found in cat feces (20.5%). Only 7.6% of women knew that infection with T. gondii can be transmitted by consumption of contaminated food or water. Only 1.1% of women knew about the prevalence of T. gondii infection. Some (4.9%) women used to taste raw meat while cooking, and 7.6% used to undercook meat. In addition, 20% of women used to eat raw dried meat, and 13.5% consumed untreated water. Less than 90% of women always washed their hands before cooking, and washed fruits or vegetables. The majority (75.1%) of women never wore gloves when handling raw meat. About one quarter (27.6%) of women always froze meat. And 16.2% of women cleaned cat feces. This is the first study regarding knowledge and practices about toxoplasmosis in housewives. Poor knowledge regarding T. gondii infection, toxoplasmosis, and practices to avoid infection among the housewives studied was found. High risk practices for infection were identified. Strategies to improve toxoplasmosis-related knowledge and practices to avoid T. gondii infection and its sequelae in housewives are highly needed.
Collapse
Affiliation(s)
- Nadia Velázquez-Hernández
- Institute for Scientific Research “Dr. Roberto Rivera Damm”, Juárez University of Durango State, Durango, Mexico
| | | | | | | | | | | | | | - Cosme Alvarado-Esquivel
- Faculty of Medicine and Nutrition, Juárez University of Durango State, Durango, Mexico
- * E-mail:
| |
Collapse
|
49
|
Hou S, Liu Y, Tang Y, Wu M, Guan J, Li X, Wang Z, Jiang J, Deng M, Duan Z, Tang X, Han X, Jiang L. Anti-Toxoplasma gondii effect of two spider venoms in vitro and in vivo. Toxicon 2019; 166:9-14. [DOI: 10.1016/j.toxicon.2019.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/25/2019] [Accepted: 05/11/2019] [Indexed: 12/11/2022]
|
50
|
Minetto MK, Witter R, Oliveira ACSD, Minetto JA, Barros ML, Aguiar DMD, Pacheco RDC. Antibodies anti-Toxoplasma gondii and anti-Neospora caninum in backyard pigs from the state of Mato Grosso, Brazil. ACTA ACUST UNITED AC 2019; 28:403-409. [PMID: 31390435 DOI: 10.1590/s1984-29612019050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 06/05/2019] [Indexed: 11/22/2022]
Abstract
To estimate the seroprevalence of Toxoplasma gondii and Neospora caninum, using an indirect immunofluorescent assay (IFA), and identify the risk factors associated, serum samples were collected from 1,070 pigs from 320 backyard pig farming in the of Mato Grosso state. The animal-level seroprevalence of T. gondii and N. caninum was 32.48% and 13.49%, respectively, with a herd seroprevalence of 55.63% for T. gondii and 27.81% for N. caninum. Feeding the animals with leftovers increases the probability of the presence of anti-T. gondii antibodies in pigs by 1.09-fold. Unlike to T. gondii, feeding with leftovers was found to be negatively associated with N. caninum seropositivity in farm-level analysis and in the animal-level model, so decreasing the chances of positivity. Yet, age was considered a risk factor for N. caninum seropositivity. Further studies are necessary to evaluate the impact of T. gondii infection on backyard pig farming production, and its importance as a source of toxoplasmosis infection in humans in the Mato Grosso state, as well as, the role of domestic pigs in the epidemiology of neosporosis.
Collapse
Affiliation(s)
- Make Kawatake Minetto
- Programa de Pós-graduação em Ciências Veterinárias - PPGVET, Faculdade de Medicina Veterinária - FAVET, Universidade Federal de Mato Grosso - UFMT, Cuiabá, MT, Brasil.,Instituto de Defesa Agropecuária do Estado de Mato Grosso - INDEA-MT, Cuiabá, MT, Brasil
| | - Rute Witter
- Programa de Pós-graduação em Ciências Veterinárias - PPGVET, Faculdade de Medicina Veterinária - FAVET, Universidade Federal de Mato Grosso - UFMT, Cuiabá, MT, Brasil.,Instituto Federal de Educação, Ciência e Tecnologia de Rondônia - IFRO, Jaru, RO, Brasil
| | - Anderson Castro Soares de Oliveira
- Programa de Pós-graduação em Ciências Veterinárias - PPGVET, Faculdade de Medicina Veterinária - FAVET, Universidade Federal de Mato Grosso - UFMT, Cuiabá, MT, Brasil
| | - João Augusto Minetto
- Instituto de Defesa Agropecuária do Estado de Mato Grosso - INDEA-MT, Cuiabá, MT, Brasil
| | - Marcelo Luís Barros
- Instituto de Defesa Agropecuária do Estado de Mato Grosso - INDEA-MT, Cuiabá, MT, Brasil
| | - Daniel Moura de Aguiar
- Programa de Pós-graduação em Ciências Veterinárias - PPGVET, Faculdade de Medicina Veterinária - FAVET, Universidade Federal de Mato Grosso - UFMT, Cuiabá, MT, Brasil
| | - Richard de Campos Pacheco
- Programa de Pós-graduação em Ciências Veterinárias - PPGVET, Faculdade de Medicina Veterinária - FAVET, Universidade Federal de Mato Grosso - UFMT, Cuiabá, MT, Brasil
| |
Collapse
|