Figure 1From: BVDV and BHV-1 Infections in Dairy Herds in Northern and Northeastern ThailandMap of Thailand showing the location of the 9 public milk centres from which the bulk milk samples were collected. The prevalence of BVDV ad BHV-1 seropositive herds among the 220 herds in milk centres 1–7, milk centre 8 and milk centre 9, are shown within diamonds and squares, respectively.Back to article page