meningitis AE meningitis pneumococcal AE QY, JX, HY 肺炎球菌脑膜炎 https://pubmed.ncbi.nlm.nih.gov/21734248/ This is an AE which continues to be associated with high rates of mortality and long-term neurological sequelae and the most common route of infection starts by nasopharyngeal colonization by Streptococcus pneumoniae, which must avoid mucosal entrapment and evade the host immune system after local activation. 10027253