Vasily Danilewsky

Danilewsky was born in Kharkiv (in the Russian Empire, now Ukraine), and was educated there. He graduated from the University of Kharkiv in 1874, and earned his doctoral degree in 1877, at the age of 25, upon the thesis Investigations into the physiology of the brain. He was professor of physiology at the University of Kharkiv during 1883 to 1909 and 1917 to 1921. From 1921 he transferred to Kharkiv Medical Institute. In 1927 the Russian Academy of Sciences established Danilevsky Institute of Endocrine Pathology Problems, which he directed until his death. ==Contributions==

Danilewsky was one of the pioneers of neurobiology. He was the first to describe the nerve impulse system in the brain of dogs. However, his most notable works were in parasitology. In 1884, he was the first to observe the species of Haemoproteus, parasitic protozoan in the blood of birds, and established the order Haemospororida for it. He helped to establish a new genus Leucocytozoon (but did not give the name). He was the first to observe the genus in 1889. The first species described in 1898 was even named primarily after him as Leukocytozoen Danilewskyi. Danilewsky was the first to describe the bird malaria. He discovered the symptoms of malaria in birds such as acute anaemia, enlargement of liver and spleen, accumulation of pigments in the blood cells. He also gave the first clue to the similarity of malaria of birds to that of humans. Danilewsky described and discovered the protozoan Trypanosoma avium in 1885, the first known flagellate protozoan parasite in birds. ==References==