Aleksandra Troitskaya

Aleksandra Sergeyevna Troitskaya (; 1896–1979) was a Soviet microbiologist-leprologist, candidate of medical sciences. She was an author of cancer vaccine, and an honorary citizen of Kaluga.

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.

Andrei Sakharov, who tried to use Troitskaya to treat his first wife's cancer, wrote about her in his memoirs.

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