First-time detection of porcine reproductive and respiratory syndrome virus (PRRSV) infection in Uruguay.

First-time detection of porcine reproductive and respiratory syndrome virus (PRRSV) infection in Uruguay. Transbound Emerg Dis. 2018 Jan 12;: Authors: Ramos N, Mirazo S, Castro G, Cabrera K, Osorio F, Arbiza J Abstract Within the last two decades, several high-impact viruses have emerged in the global swine population, including porcine reproductive and respiratory syndrome virus (PRRSV). In Uruguay, the more recent serological survey for PRRSV and other notifiable diseases such as Aujeszky's disease virus (ADV) and classical swine fever virus (CSFV) dated from year 2000. The main purpose of this study was to update our information on the infection status of PRRSV, ADV and CSFV in Uruguayan pig herds, in order to keep informed about the epidemiological situation of these notifiable infections in the country. For serological testing, a total of 524 swine serum samples collected during the period 2014-2016 were assayed by commercial ELISAs. Our results revealed the (unexpected) presence of PRRSV antibodies in Uruguayan domestic swine herds and confirmed the absence of ADV and CSFV antibodies in all of the assessed samples. Following such initial finding, PRRSV antibodies were further investigated in 23 retrospective samples collected during 2010-2014. Thirteen of these 23 samples resulted seropositive. Subsequently, a molecular detection approach in frozen serum samples was implemented to confirm PRRSV infection, and viral RNA was iden...
Source: Adv Data - Category: Epidemiology Authors: Tags: Transbound Emerg Dis Source Type: research