Causes of throat infections include: Viruses (most common) Bacteria (such as strep) Fungal infections Parasitic infections Cigarette smoke Other causes What are the symptoms
[hopkinsmedicine.org]
Pharyngitis and tonsillitis can be caused by viruses, bacteria, fungi, parasites, and cigarette smoking. Most infections are caused by viruses.
[lluh.org]
There are many causes for infections in the throat, including viruses, bacteria, fungal and parasitic infections and cigarette smoke.
[childrenshospital.org]