What does typhus mean?
Typhus is an acute infectious fever caused by rickettsial bacteria. The best-known form, epidemic typhus, is associated with Rickettsia prowazekii and spreads chiefly through body lice; crowded living conditions and poor hygiene can increase the risk of outbreaks. The illness is characterized by high fever, headache, and often a rash, and untreated epidemic typhus can be fatal. The word is also used more broadly for related infections transmitted by other arthropods, including murine typhus, which is usually milder and is transmitted chiefly by fleas. In historical writing, typhus frequently refers to epidemic typhus and is associated with famine, war, prisons, refugee camps, and other crowded conditions. The term is technical and medical, but it has strong historical and literary resonance because outbreaks once devastated armies and civilian populations. It should not be confused with typhoid fever, a different enteric infection caused by Salmonella Typhi. Recognising the distinction matters both for understanding historical accounts and for reading modern medical and public-health material accurately.
nounAn acute infectious fever caused by rickettsial bacteria. The best-known form, epidemic typhus, is transmitted chiefly by infected body lice and can be severe or fatal without treatment.
- The acute, potentially severe febrile disease caused by Rickettsia prowazekii and transmitted chiefly by body lice, commonly called epidemic typhus.
- Any of several related rickettsial infections transmitted by fleas or mites and also called typhus, especially murine typhus, which is usually milder than epidemic typhus.
"Health officials confirmed an outbreak of epidemic typhus in the overcrowded shelter."
"The clinic reported an outbreak of epidemic typhus among residents of the overcrowded shelter."
"The novel describes typhus spreading through a besieged city and devastating its population."
Typhus is normally treated as an uncountable noun.
"The outbreak of typhus forced officials to evacuate the temporary settlement."
Long before modern vaccines and antibiotics, typhus spread through wartime crowds and prison camps, making it a grim historical marker of famine, war, and displacement.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does typhus come from?
The English word typhus came through Latin from Greek τύφος (typhos), an ancient term associated with smoke or vapor and, by extension, feverish illness. Over time, typhus became the name for epidemic febrile diseases. Its Greek root is also reflected in typhoid and in the name Typhon; typhoon, despite its visual resemblance, has an unrelated Chinese origin.
How typhus is actually used
Typhus is primarily a medical and historical term. In general discussion it often refers specifically to epidemic typhus, although medical usage can also include forms such as murine typhus.
Easily confused with typhus
Typhus is a rickettsial infection spread chiefly by body lice or other arthropods, whereas typhoid is an enteric infection caused by Salmonella Typhi and is spread through contaminated food or water.