Rift valley fever virus Ag:PrThr:Pt:Ser:Ord:Immune diffusion
rift valley fever virus ag:prthr:pt:ser:ord:immune diffusion
Rift valley fever virus Antigen:Presence or Threshold:To identify measures at a point in time:Serum:Ordinal:Immune diffusion
rift valley fever virus antigen:presence or threshold:to identify measures at a point in time:serum:ordinal:immune diffusion