[Nikolai Ivanovich Latyshev (on the occasion of 125th anniversary of his birth)].

This paper is devoted to the scientific activity of Russia's most eminent parasitologist N. I. Latyshev. The paper gives its stages and the main areas of his studies of parasitic tropic diseases (malaria, tick-borne relapsing fever, pappataci fever, leishmaniasis, etc.) in the areas of Central Asia and Caucasus. N. I. Latyshev's scientific works made a great contribution to the teaching of the natural focal pattern of leishmaniasis and could further substantiate the principles of cutaneous leishmaniasis control in the endemic areas.