Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5059510.17816/kazmj50595MiscellaneousEpidemiological problems. Variability of bacteria as the cause of the movement of epidemicsLotzeН.info@eco-vector.com13031935313-45335341911202019112020Copyright © 2020, Lotze Н.2020<p>In one of the recently published works by A. managed to show that it is possible to achieve n vitro transformation of pathogenic microbes into apathogenic saprophytes. He succeeded in this by growing appropriate crops on nutrient media with the addition of various organic substances, such as sterile urine, bile, and the contents of gooseberries.</p>Kazan Medical archiveКазанский медицинский архив