Rarely occurring 19A-like cps locus from a serotype 19F pneumococcal isolate indicates continued need of serology-based quality control for PCR-based serotype determinations

在19F血清型肺炎球菌分离株中罕见地发现19A样cps基因座，表明基于PCR的血清型鉴定仍需进行基于血清学的质量控制。