Figure 1.
Haemagglutination titre of prepared WNV antigen by two different inactivating agents: β-PL and formalin at VAD of pH 6.2, 6.4, and 6.6.
Haemagglutination titre of prepared WNV antigen by two different inactivating agents: β-PL and formalin at VAD of pH 6.2, 6.4, and 6.6.