Zinaida Vissarionovna Ermol'eva

Zinaida Vissarionovna Yermolyeva, also spelled Ermol'eva (Russian: Зинаида Виссарионовна Ермольева) (October 27 [O.S. October 15] 1898 – December 2, 1974) was a Soviet microbiologist of Don Cossack origin most notable for independently synthesizing penicillin for the Soviet military during World War II. She was a member of the USSR Academy of Medical Sciences at the time of her death.

In 1921, Ermol'eva graduated from the medical faculty of Donskoy University.From 1925 on, she acted as the head of several microbiology and epidemiology institutes in Moscow.

In 1925, Ermol'eva was appointed head of the Department of Microbial Biochemistry at the USSR Academy of Sciences. There, she began her research on bacteriophages and naturally-occurring antimicrobial agents—lysozyme in particular. During the Second World War, she isolated a penicillin-producing strain of Penicillium crustosum. It was first used in Soviet hospitals in 1943.

In 1942, she published the results of an experiment performed on herself, where she infected herself by drinking a solution of Vibrio cholerae and recovered after treatment. The results of her research were seen as essential in preventative measures against cholera in Russia's war efforts in the Eastern Front of World War II.

In 1947, Ermol'eva became the director of the newly formed Institute of Antibiotics of the USSR Ministry of Public Health. From 1952 until her death, she headed the Department of Microbiology of the Central Post-Graduate Medical Institute in Moscow (now the Russian Medical Academy of Postgraduate Education).

Ermol'eva was married to the microbiologist Lev Zilber, whose brother, the novelist Veniamin Kaverin used the career of Ermol'eva and her husband as a basis for a fictionalized account in his trilogy Open Book (1949–56). The "lively and realistic" depiction of Tatiana, the character based on Ermol'eva, popularized microbiology as a possible career among girls in the Soviet Union.

• The State Stalin Prize (1943)
• Twice Order of Lenin

• Antibiotics
• Bacterial polysaccharides
• Biologically active substances from animal tissues
• Interferon
• Chemotherapy of infection

Ermolieva was the author of more than 500 papers, several books, such as "Penicillin", "Antibiotics, Bacterial Polysaccharides, Interferon" and others. She was the founder and chief editor of the Soviet journal "Antibiotiki" ("Antibiotics").

On October 24, 2018, Yermolyeva was celebrated with a Google Doodle for her achievements.