Throat Infections: Common Microorganisms & Causes

A variety of microorganisms can cause infections in the throat, including bacteria, viruses, and fungi. Some of the most common microorganisms that cause throat infections include:

Bacteria:

- Streptococcus pyogenes (strep throat)

- Staphylococcus aureus

- Streptococcus pneumoniae

- Haemophilus influenzae

- Mycoplasma pneumoniae

- Chlamydia pneumoniae

- Neisseria gonorrhea

Viruses:

- Influenza viruses (the flu)

- Parainfluenza viruses

- Respiratory syncytial virus (RSV)

- Adenoviruses

- Herpes simplex virus

- Epstein-Barr virus

- Cytomegalovirus

Fungi:

- Candida albicans (thrush)

Other microorganisms:

- Mycoplasma hominis

- Ureaplasma urealyticum

The type of microorganism that causes a throat infection will depend on factors such as the person's age, immune system status, and exposure to specific pathogens. Some microorganisms are more common in certain geographic areas or during specific times of the year.