Scrub Typhus | 26 Sep 2020

Why in News

An outbreak of Scrub Typhus (also known as Bush Typhus), a bacterial disease, has caused 5 deaths and 600 infections in Nagaland’s Noklak district bordering Myanmar.

Key Points

  • Caused By: Orientia tsutsugamushi (Bacteria)
  • Spread: Through bites of Larval Mites of family trombiculid, also called Chiggers.
  • Symptoms: Fever, headache, body aches, and sometimes rash.
  • Occurrence: Rural areas of Southeast Asia, Indonesia, China, Japan, India, and northern Australia.
  • Treatment: Antibiotics. No vaccine available.

Typhus

  • Typhus is a group of bacterial infectious diseases that include epidemic typhus, scrub typhus, and murine typhus.
    • Epidemic typhus is due to Rickettsia prowazekii spread by body lice.
    • Scrub typhus is due to Orientia tsutsugamushi spread by chiggers.
    • Murine typhus is due to Rickettsia typhi spread by fleas.
  • Napoleon’s army was infected with Epidemic Typhus during his invasion of Russia in 1812 causing it to retreat.

Source: TH