Viruses exacerbate disease caused by Leishmania parasite

More than a million people in tropical countries contract the parasite Leishmania every year through the bites of infected sand flies. Most people develop disfiguring – but not life-threatening – skin lesions at the sites of the bites. But if the parasite spreads to the internal organs, it causes a disease known as visceral leishmaniasis, which […]

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