Figure 3

Quasi-species differences between vaccinated animals. Location of the nucleotide positions along the PRRSV1 genome showing differences between two groups of vaccinated animals developing short (n = 7) or long viraemia (n = 4) against PRRSV1 infection (calculated as Fct results, only values > 0.05 are shown). Synonymous changes are marked with blue dots, while red dots identify non-synonymous changes.