Rickettsia typhi Ab.IgG^1st specimen:Titr:Pt:Ser:SemiQn
rickettsia typhi ab.igg^1st specimen:titr:pt:ser:semiqn
Rickettsia typhi IgG Ab [Titer] in Serum --1st specimen
rickettsia typhi igg ab [titer] in serum --1st specimen