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Figure 1 | BMC Veterinary Research

Figure 1

From: Risk factors for porcine reproductive and respiratory syndrome virus infection and resulting challenges for effective disease surveillance

Figure 1

Scenario tree. Scenario tree for pig disease surveillance system through which PRRS is diagnosed on pig farms in England. See Table 7 for an explanation of the abbreviations used for individual nodes in this figure. Only the branches for the HDALVAC risk node are shown, the same branches were used for the other risk nodes (HDAnVAC, LDALVAC, LDAnLVAC).

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BMC Veterinary Research

ISSN: 1746-6148

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