Murine Typhus

Oct. 14, 2024

A 75-year-old man from Kerala who recently travelled to Vietnam and Cambodia was diagnosed with the bacterial disease murine typhus.

About Murine Typhus:

  • It is an infectious disease caused by the flea-borne bacteria Rickettsia typhi.
  • Transmission:
    • It is transmitted to humans through the bites of infected fleas.
    • It is also known as endemic typhus, flea-borne typhus or flea-borne spotted fever.
    • Rodents like rats, mice and mongoose, are known to be reservoirs of the disease.
    • The disease-carrying fleas can also live on other small mammals, including pets such as cats and dogs. Once a flea is infected, it can spread the disease for the rest of its life.
    • Transmission can also happen through exposure of mucous membranes to infected flea faeces.
  • It is spread when infected flea faeces come into contact with cuts or scrapes in the skin.
  • Murine typhus is not spread from one person to another, or from person to fleas.
  • The disease has been reported in coastal tropical and subtropical regions, where rats are prevalent.
  • In India, cases of murine typhus have been reported in the Northeast, Madhya Pradesh and Kashmir.
  • Symptoms
    • The symptoms usually appear seven to 14 days after the exposure and include fever, headaches, body aches, joint pains, nausea, vomiting, and stomach aches.
    • Some people may later develop rashes on the skin, days after the initial symptoms.
  • Treatment
    • There is no vaccine currently available against the disease.
    • The antibiotic doxycycline is considered effective in therapy, but early diagnosis is vital for treatment.