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