Bacteria Home > Types of Bacterial Pneumonia
- Gram-negative bacteria, such as Escherichia coli, Klebsiella pneumoniae, Enterobacter species, Pseudomonas aeruginosa, and Acinetobacter species
- Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA)
- Streptococcus species.
- Streptococcus pneumoniae, also known as just pneumococcus (the most common cause of pneumonia worldwide)
- Mycoplasma pneumoniae
- Haemophilus influenzae
- Chlamydophila pneumoniae
- Legionella pneumophila.