Foot and mouth disease virus Ag:PrThr:Pt:Thrt:Ord
foot and mouth disease virus ag:prthr:pt:thrt:ord
Foot and mouth disease virus Antigen:Presence or Threshold:To identify measures at a point in time:Throat:Ordinal
foot and mouth disease virus antigen:presence or threshold:to identify measures at a point in time:throat:ordinal