<unk> , formerly called Pfeiffer's bacillus or Bacillus<unk> , is a non-motile Gram-negative coccobacillus first described in 1892 by Richard Pfeiffer during an<unk> pandemic. It is generally aerobic, but can grow as a facultative anaerobe. H.<unk>  was mistakenly considered to be the cause of the common flu until 1933, when the viral etiology of the flu became apparent. Still, H.<unk>  is responsible for a wide range of clinical diseases. Because of its small genome, H.<unk>  became the first free-living organism with its entire genome sequenced. Its genome consists of 1,830,140 base pairs of DNA and contains 1740 genes. The method used was Whole genome shotgun. The sequencing project, completed and published in Science in 1995, was conducted at The Institute for Genomic Research.
Haemophilus influenzae
Streptococcus pneumoniae
Chlamydophila pneumoniae
Moraxella catarrhalis
Neisseria meningitidis
Bacillus anthracis
Rhodococcus equi
Streptococcus pyogenes