5. Typhus
This condition, which is often referred to as typhus fever, is actually a collection of infectious illnesses such as epidemic typhus, scrub typhus, and murine typhus, all of which are brought on by bacteria that are transmitted by mites, fleas, and lice. Its signs include a rash, fever, and headache.
Typhus has probably existed for a very long time, but the first instances were recorded in 1489 AD. However, there have been other epidemics throughout history, most of which began in crowded, unhygienic locations.
Fortunately, it is now quite uncommon and is curable with drugs like doxycycline.
