High prevalence of Toxoplasma gondii antibodies in domestic pigs in Oaxaca State, Mexico

The Journal of Parasitology
Cosme Alvarado-EsquivelJ P Dubey

Abstract

Pigs are important in the epidemiology of toxoplasmosis in North America. Seroprevalence of Toxoplasma gondii infection in 525 domestic pigs (337 backyard raised, 188 farm raised) in Oaxaca State, Mexico was determined using the modified agglutination test (MAT, cutoff 1:25). Antibodies to T. gondii were found in 58 (17.2%) of the 337 backyard pigs with MAT titers of 1:25 in 10, 1:50 in 12, 1:100 in 18, 1:200 in 6, 1:400 in 6, 1:800 in 3, and 1:1,600 in 3. Seropositive pigs were found in 39 (37.9%) of 103 homes in all 7 municipalities surveyed. Seroprevalence of T. gondii infection in backyard pigs varied with age, gender, geographic region, climate, and altitude. High seroprevalence was found in pigs ≥ 9-mo-old (40%), in females (40%), in pigs from the Istmo region (33.3%), and in those raised in a tropical climate (65%). Seroprevalence was higher (24.5%) in pigs raised at 100-660 m above sea level than in those at 20-60 m of altitude (14.2%). With respect to farm pigs, only 1 (0.5%, MAT titer 1:100) of 188 pigs from 5 farms was positive for anti- T. gondii antibodies. The results affirm that the management system (outdoor vs. indoor system with biosecurity) is a key factor in the epidemiology of porcine toxoplasmosis. Because...Continue Reading

References

Jul 1, 1987·Equine Veterinary Journal·J P Dubey, G Desmonts
Jan 1, 1982·Memórias do Instituto Oswaldo Cruz·S G CoutinhoF Sutmoller
May 1, 1997·The Journal of Infectious Diseases·W Y ChoiJ P Dubey
Jun 30, 2009·Veterinary Parasitology·J P Dubey
Apr 22, 2011·The Journal of Parasitology·C Alvarado-EsquivelJ P Dubey
Mar 28, 2012·Vector Borne and Zoonotic Diseases·Cosme Alvarado-EsquivelMaría Magdalena Ruiz-Martínez

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Citations

Feb 11, 2014·Tropical Animal Health and Production·Cosme Alvarado-EsquivelJitender P Dubey
Dec 11, 2014·Parasites & Vectors·Clare M HamiltonPatrick J Kelly
Apr 18, 2015·European Journal of Microbiology & Immunology·Cosme Alvarado-EsquivelJitender P Dubey
Apr 30, 2015·Revista Do Instituto De Medicina Tropical De São Paulo·Ivonne Hernández-CortazarMatilde Jiménez-Coello
Jul 15, 2020·The Journal of Parasitology·Ana Isabel Cubas-AtienzarJudith Elisabeth Smith
Jun 19, 2021·Parasite Epidemiology and Control·Yu Nandi ThawSaw Bawm
Dec 4, 2020·Veterinary Parasitology·Jitender P DubeyChunlei Su
Jul 28, 2021·Parasitology Research·Julio César Castillo-CuencaIgnacio García-Bocanegra

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