What are the causes and symptoms of typhus?
The four types of typhus cause similar types of illnesses, though varying in severity. Epidemic typhus causes fever, headache, weakness, and muscle aches. It also causes a rash composed of both spots and bumps. The rash starts on the back, chest, and abdomen, then spreads to the arms and legs. The worst types of complications involve swelling in the heart muscle or brain (encephalitis). Without treatment, this type of typhus can be fatal. Brill-Zinsser disease is quite mild, resulting in about a week-long fever, and a light rash similar to that of the original illness. Endemic typhus causes about 12 days of high fever, with chills and headache. A light rash may occur. Scrub typhus causes a wide variety of effects. The main symptoms include fever, headache, muscle aches and pains, cough, abdominal pain, nausea and vomiting, and diarrhea. Some patients experience only these symptoms. Some patients develop a rash, which can be flat or bumpy. The individual spots eventually develop crusty
