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Bulletin No. 16 - Fall 2003
Fourth International Symposium on Emerging and Re-emerging Pig diseasesPorcine Reproductive and Respiratory Syndrome (PRRS)
GIOVANARDI D, PESENTE P, SPERATI RUFFONI L, SANDRI GP, CAMPAGNARI E, MOTTA C
A testing procedure to evaluate gilts' PRRSV acclimatization.
Proceedings of the 4th International Symposium on Emerging and Re-emerging Pig Diseases, 2003, 121-122
In order to reduce the risk of PRRS outbreaks, replacement gilts can be exposed and infected with homologous farm-specific strains of PRRSV before their introduction into PRRS positive farms (acclimatization). At that point, it is necessary to determine the immune status of each gilt and segregate the viremic ones. Clinical signs were shown to be a too subjective and unreliable way to establish viremia. Two testing procedures are investigated: ELISA and nested PCR. In a routine context, the detection of IgG-IgM antibodies by ELISA provides the best cost/benefit ratio.
