Porcine and rodent infection withTrichinella, in the Sierra Grande area of Río Negro province, Argentina
| Autor: | S. Mancini, R. Bigatti, Edmundo Larrieu, V. Molina, S. Krivokapich, E. Guarnera, E. Herrero, L. Ledesma, C. Chiosso, S. Albarracín |
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| Rok vydání: | 2004 |
| Předmět: |
medicine.medical_specialty
Veterinary medicine Meat Endemic Diseases Rodent Swine Human Trichinellosis Trichinella Diaphragm Argentina Helminthiasis Enzyme-Linked Immunosorbent Assay Rodentia Trichinosis Biology Artificial digestion Serology Rodent Diseases Seroepidemiologic Studies biology.animal Prevalence medicine Animals Swine Diseases Trichinellosis medicine.disease biology.organism_classification Infectious Diseases Tropical medicine Parasitology |
| Zdroj: | Annals of Tropical Medicine & Parasitology. 98:725-731 |
| ISSN: | 1364-8594 0003-4983 |
| Popis: | In 2000, two cases of human trichinellosis were detected in the Sierra Grande area of Rio Negro province, Argentina. As part of an investigation of the aetiology of these cases, 300 pigs slaughtered for consumption in the area between 2000 and 2002 were checked for Trichinella infection, by artificial digestion of a muscle sample. Twelve (5.6%) - four (7.3%) of the 55 checked in 2000, five (4.8%) of the 105 investigated in 2001, and three (2.1%) of the 140 investigated in 2002 - were found infected. Blood samples were collected from other pigs aged6 months old, so that sera could be tested, in ELISA and by western blotting, for anti- Trichinella antibodies. Of the 181 animals checked in the initial serological survey, 36 (19.9%) were found seropositive for Trichinella. When 35 of the seronegative pigs were re-checked 6 months later, three (8.6%) were found to have seroconverted. Four (15.4%) of 26 local rodents, caught in Sherman-type traps, were also found positive when checked for infection by artificial digestion. It appears that about 20% of pigs in the study area are infected each year, this high level of transmission being sustained by a high prevalence of infection in the local rodent populations. |
| Databáze: | OpenAIRE |
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