Figure 5
From: Swine influenza virus infection dynamics in two pig farms; results of a longitudinal assessment

Seroprevalence and incidence of SIV in Farm 2. The techniques and symbols used are the same as those used in Figure 1.
From: Swine influenza virus infection dynamics in two pig farms; results of a longitudinal assessment
Seroprevalence and incidence of SIV in Farm 2. The techniques and symbols used are the same as those used in Figure 1.