Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector8543610.17816/kazmj85436Research ArticleOn the possibility of local outbreaks of tuberculosis during the endemic periodIvanovaL. S.<p>Department of Tuberculosis </p>info@eco-vector.comKozlenkoL. S.<p>Department of Tuberculosis</p>info@eco-vector.comVolchkovaI. L.<p>Department of Tuberculosis</p>info@eco-vector.comSaratov Order of the Red Banner of Labor Medical Institute1501198364111120211202102112021Copyright © 1983, Eco-Vector1983<p>Of the group of children who had been in contact with an unknown source of tuberculosis infection for no more than 6 months, 35.1% were infected and 9.4% of children became ill with intra-thoracic tuberculosis. This situation is interpreted as a local outbreak of the disease during the endemic period of tuberculosis caused by an unknown source of infection in children with reduced specific immunity.</p>tuberculosisimmunityтуберкулезиммунитет