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Specific viral infections in swine (AD, TGE, PRCV, PRRS, SI)

The viral diseases AD, TGE, PRCV and PRRS have never been found in Norway. The influenza A(H1N1)pdm09 virus was introduced to the Norwegian swine population in  2009. In 2013 antibodies against influenza A(H1N1)pdm09 were detected in blood samples from pigs in 46% of the herds.

The aims of the serological surveillance program are to ascertain the continued absence of specific viral infections, and the status for H1N1pdm09 infection in the Norwegian swine population, and to maintain this favorable situation.

All of these viral infections are highly contagious, and with the exception of PRCV they can cause serious disease outbreaks with significant losses in production. Several European countries, including Denmark and Sweden have conducted successful eradication of AD. PRRS is commonly encountered in most pig producing countries except Finland, Norway and Sweden. Norway is the only country in Europe which is evidenced free for other variants of influenza A virus than the (H1N1) pdm09 in swine.