A member asked:

Why leishmaniasis is transmitted by sand flies bite? why not by other mosquitoes?

6 doctors weighed in across 2 answers
Dr. Steven Bowers answered

Specializes in Internal Medicine

Life cycle: Apparently the sand fly's GI tract provides the perfect environment for the parasite to develop through it's life cycle. Immature forms of the parasite are ingested by the sand fly when it takes a blood meal from an infected human. The parasite then develops in the sand fly mid gut. No other mosquitoes seem have what the little parasites need to develop.

Answered 6/7/2015

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Sandflies : The mosquito does not carry leishmaniasis the organism lives in the gut of the sandfly.

Answered 10/3/2012

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