Persistence of maternal antibodies against porcine cysticercosis and its effect on the interpretation of EITB results

S. Alberto Ccama, Z. Armando González, P. Néstor Falcón, R. Teresa Bernal

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Abstract

© 2003 Universidad Nacional Mayor de San Marcos. All rights reserved. The study evaluate the effect of maternal antibodies against porcine cysticercosis on the interpretation of EITB test results. This data set was obtained from epidemiologic studies developed at Quilcas district, Huancayo, during a period of 4 years (1995-1998). Samples from 298 piglets and their respective dams were analized; animals were stratified by sex and immune status. Maternal antibodies persisted in the blood stream until piglets were 148.8 days old (117-242), and without significant differences between sexes. The average age in which positive piglets to EITB got infected was 170, whereas negative piglets got infected at 179.3 days of age (98-261) and without statistical differences due to sex. The immune status of piglets and dams did not interfere with age of infection. The Cox Regression showed that none of the variables under evaluation constituted a risk factor for the infection with cysticercus. This study demonstrated that maternal antibodies against porcine cysticercosis can interfere in the interpretation of results of epidemiologic studies when piglets younger than 8 month of age are sampled, probably due to the fact that the EITB test does not discriminate between material antibodies than those self-acquired as result of a natural infection.
Original languageAmerican English
Pages (from-to)140-144
Number of pages5
JournalRevista de Investigaciones Veterinarias del Peru
StatePublished - 1 Jan 2003

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