Streptococcus pneumoniae Danish serotype 20A Ab.IgG^1st specimen:MCnc:Pt:Ser:Qn
streptococcus pneumoniae danish serotype 20a ab.igg^1st specimen:mcnc:pt:ser:qn
S pneum Da 20A IgG sp1 Ser-mCnc
s pneum da 20a igg sp1 ser-mcnc