Virulence comparison of 4 porcine circovirus type 2 (PCV-2) genotypes: 2a, 2b, 2d, and 2e with a single infection and co-infection with PCV-2 and porcine reproductive and respiratory syndrome virus (PRRSV).

Abstract excerpt

The objective of this study was to compare the virulence of 4 porcine circovirus type 2 (PCV-2) genotypes (2a, 2b, 2d, and 2e) in pigs singly infected with 1 of these 4 PCV-2 genotypes and pigs dually infected with a combination of 1 of the 4 PCV-2 genotypes and porcine reproductive and respiratory syndrome virus (PRRSV). Virulence was determined based on levels of PCV-2 loads in the blood and lymph nodes and the...

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