G Pappaterra

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The purpose of this experiment was to study the immune response of pigs during an experimental infection with a European strain of Porcine reproductive and respiratory syndrome virus (PRRSV). Five pigs were challenged intranasally with PRRSV strain VP21 and another five were kept as controls. Clinical course and humoral and cell-mediated responses were(More)
Immunization of piglets with two different European-type modified live vaccines against porcine reproductive and respiratory syndrome (PRRS) virus produced different outcomes. After vaccination, pigs became viremic (42 days), neutralizing antibodies did not develop, and frequencies of virus-specific gamma-interferon-secreting cells (IFN-gamma-SC) were low.(More)
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