Multiple choice Which of the following is a pair of protozoan diseases? Ascariasis and Mucormycosis Ascariasis and Leishmaniasis Leishmaniasis and Mucormycosis Mucormycosis and Toxoplasmosis Leishmaniasis and Toxoplasmosis Reveal answer Fill a bubble to check yourself E Correct answer Explanation Leishmaniasis is a disease caused by an intracellular protozoan parasite of genus Leishmania and transmitted by the bite of a sandfly. Toxoplasmosis is a parasitic disease caused by the protozoan Toxoplasma gondii.