Infectious conditions develop when bacteria, viruses, fungi or parasites cause illness. They can affect a specific area or multiple body systems, with symptoms and recovery varying according to the infection and the body's response.
COVID-19 is a viral illness; Long COVID involves persistent or recurring symptoms after the acute infection.
A rapidly spreading bacterial infection that destroys muscle and soft tissue and requires emergency care.
A serious collection of infection inside the skull that can affect the brain and neurological function.
A tick-borne bacterial infection that can affect the skin, joints, nervous system and other organs.
Rapidly spreading infections that destroy skin, fascia and other soft tissues and require emergency care.
A persistent or recurring bone infection that has not resolved despite appropriate standard treatment.
Reactivation of the chickenpox virus causing a painful blistering rash and sometimes persistent nerve pain.
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