: any of various bacterial diseases caused by rickettsias: such as. a : a severe human febrile disease that is caused by one (Rickettsia prowazekii) transmitted especially by body lice and is marked by high fever, stupor alternating with delirium, intense headache, and a dark red rash.

How does a person get typhus?

Flea-borne typhus is spread to people through contact with infected fleas. Fleas become infected when they bite infected animals, such as rats, cats, or opossums. When an infected flea bites a person or animal, the bite breaks the skin, causing a wound.

What is typhus and how do you get it?

What is Typhus? Typhus is a disease caused by rickettsia or orientia bacteria. You can get it from infected mites, fleas, or lice. Modern hygiene has mostly stopped typhus, but it can still happen in places where basic sanitation is bad or if it gets passed on by an infected animal.