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Here is a quick mnemonic ” BLANCHING “ to remember about the Epidemic Typhus Rash

Epidemic typhus, also known as louse-borne typhus, is a bacterial infection caused by the bacterium Rickettsia prowazekii. It is typically transmitted to humans through the bites of infected body lice. The disease is characterized by high fever, severe headache, rash, and muscle pain. If left untreated, epidemic typhus can be life-threatening.

This can be valuable for patients as well as medical doctors, nurses & students doing their clinical rounds. You can also find it very useful for med exams like USMLE, NEET PG, FMGE, NExT & NCLEX exams

Epidemic Typhus Rash: How To Remember Easily ?

  • B: Blanchable macules evolve to confluent eruption with petechiae in epidemic typhus.

  • L: Lice exposure leads to the occurrence of recrudescent typhus after 30-50 years.

  • A: Axillae is the initial site of the maculopapular eruption in epidemic typhus.

  • N: Normally, the face, palms, and soles are spared in epidemic typhus.

  • C: Clinical presentation is milder in the recrudescent form of typhus.

  • H: Headache and myalgias are common symptoms in epidemic typhus.

  • I: If untreated, the mortality rates for epidemic typhus range from 10% to 40%.

  • N: Note : The rash in epidemic typhus is evanescent in the recrudescent form.

  • G: Generalized spread of the eruption occurs from the trunk to the extremities in epidemic typhus.


Mnemonic : BLANCHING

Video On Epidemic Typhus To Further Add To Your Knowledge

Dr. Arin Nandi

Passionate About Medical Science & Helping Future Doctors Achieve Top Ranks In Medical Exams. He is professionally a dentist as well as a public health expert from JIPMER (1), (2)working in health department