鼠疫桿菌
Prevention of bacterial pneumonia is by vaccination against "Streptococcus pneumoniae" (pneumococcal polysaccharide vaccine for adults and pneumococcal conjugate vaccine for children), "Haemophilus influenzae" type B, meningococcus, "Bordetella pertussis", "Bacillus anthracis", and "Yersinia pestis".