Rickettsia prowazekii Ab.IgM:Titr:Pt:Ser:SemiQn:IF
rickettsia prowazekii ab.igm:titr:pt:ser:semiqn:if
Rickettsia prowazekii IgM Ab [Titer] in Serum by Immunofluorescence
rickettsia prowazekii igm ab [titer] in serum by immunofluorescence