Original: Ilya Ilyich Mechnikov () (also romanized Elie Metchnikoff) (16 May 1845 - 15 July 1916) was a Russian microbiologist best remembered for his pioneering research into the immune system.
Simplified: Ilya Ilyich Mechnikov (May 16, 1845 - July 16, 1916) was a Russian biologist.