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Table 5 Distribution of PRRSV in tissues after the homologous or heterologous challenge by nested RT-PCR or immunohistochemistry (IHC)

From: Characterization of homologous and heterologous adaptive immune responses in porcine reproductive and respiratory syndrome virus infection

   Nº positives/Nº examined
Experiment Group Assay Lung Tonsil Spleen
1 C1 + B nRT-PCR 0/2 2/2 1/2
IHC 0/2 1/2 0/2
A + A nRT-PCR 2/4 1/4 1/4
IHC 0/4 1/4 1/4
A + B nRT-PCR 2/4 4/4* 3/4
   IHC 0/4 0/4 1/4
2 C2 + A nRT-PCR 1/3 1/3 0/3
IHC 0/3 0/3 0/3
B + B nRT-PCR 0/4 2/4 0/4
IHC 0/4 0/4 0/4
B + A nRT-PCR 0/3 1/3 0/3
   IHC 0/3 1/3 0/3
  1. *p = 0.07