肺炎球菌的caused by or relating to the bacteria pneumococcus (= a bacteria that causes many infections in humans, including pneumonia, meningitis, and ear infections)
a pneumococcal infection 肺炎球菌感染
The pneumococcal vaccine, Prevnar, is mainly given to prevent meningitis. 肺炎球菌疫苗Prevnar主要用于预防脑膜炎。
See: pneumococcus