Streptococcus pneumoniae Danish serotype 2 Ab.IgG^2nd specimen/1st specimen
streptococcus pneumoniae danish serotype 2 ab.igg^2nd specimen/1st specimen
Streptococcus pneumoniae Danish serotype 2 Ab.IgG^2nd specimen/1st specimen
streptococcus pneumoniae danish serotype 2 ab.igg^2nd specimen/1st specimen