Louse-borne relapsing fever

From WikiMD's Food, Medicine & Wellness Encyclopedia

An infection that is caused by certain species of rickettsia or borrelia, which are transmitted to humans from infected lice;

Cause of Louse-borne Relapsing Fever (LBRF)[edit | edit source]

LBRF is caused by a spiral-shaped bacteria, Borrelia recurrentis, which is transmitted from human to human by the body louse.

Risk factors[edit | edit source]

LBRF outbreaks most commonly occur in conditions of overcrowding and social disruption.

Symptoms[edit | edit source]

  • It is characterized by sudden fever, chills, headaches, myalgia, arthralgia, nausea, and possibly a rash.
  • Symptoms usually persist for two to nine days, then disappear, with recurrence after several weeks if the patient remains untreated.
  • Illness can be severe, with mortality of 30 to 70% in outbreaks.

History[edit | edit source]

  • LBRF epidemics occurred frequently in Europe during the early 20th Century.
  • Between 1919 and 1923, 13 million cases resulting in 5 million deaths occurred in the social upheaval that overtook Russia and eastern Europe. * During World War II, a million cases occurred in North Africa.

Rare today[edit | edit source]

Today, LBRF causes sporadic illness and outbreaks in sub-Saharan Africa, particularly in regions affected by war and in refugee camps. LBRF is commonly found in Ethiopia, Sudan, Eritrea, and Somalia.



Louse-borne relapsing fever Resources
Doctor showing form.jpg
Wiki.png

Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Search WikiMD


Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro) available.
Advertise on WikiMD

WikiMD is not a substitute for professional medical advice. See full disclaimer.

Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.


Contributors: Prab R. Tumpati, MD