West Nile virus Ag:PrThr:Pt:XXX:Ord:IF
west nile virus ag:prthr:pt:xxx:ord:if
West Nile virus Antigen:Presence or Threshold:To identify measures at a point in time:Not specified:Ordinal:Immune Fluorescence
west nile virus antigen:presence or threshold:to identify measures at a point in time:not specified:ordinal:immune fluorescence