Aleksandra Troitskaya

Aleksandra Sergeyevna Troitskaya (Алекса́ндра Серге́евна Тро́ицкая; 1896–1979) was a Soviet microbiologist-leprologist, candidate of medical sciences. Author of cancer vaccine. Honorary Citizen of Kaluga (1996).

Biography
Troitskaya was born in Bryankovo (now in Suvorovsky District of  Tula Oblast), grew up in  Kaluga.

In 1917 she graduated from the Kaluga Diocesan School (she also studied with Konstantin Tsiolkovsky). In 1920s she worked as a teacher.

In 1934 she graduated from Kharkiv National Medical University. In 1940-1951  a microbiologist, from 1946   Senior Researcher of the Astrakhan Leprosarium.

In 1946, at the Kazan Federal University, she defended her thesis on pain biotherapy in the treatment of leprosy.

Since 1951 (after retirement) she worked as a microbiologist in the laboratory of the Kaluga Oncologic Dispensary.

She discovered new strains of corynebacteria — Corynebacterium Krestovnikova / Troitskaya.

Died
Troitskaya died in 1979. Buried on Pyatnitskoye Cemetery in Kaluga.