Multiple choice

Which of the following causes kala-azar?

  1. Mosquitoe

  2. Rat flea

  3. Sand fly

  4. Tsetse fly

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Kala-azar, also known as visceral leishmaniasis, is caused by Leishmania parasites and is transmitted to humans through the bite of an infected female sand fly.