Over 8,000 people covered by herd immunity study for coronavirus in three Russian regions 0 02.07.2020 05:21 Tass.com A study was conducted in June 2020 in three pilot regions, namely St. Petersburg, the Tyumen region, and the Khabarovsk Territory Партнёры Smi24.net Все новости за 24 часа Музыкальные новости Агрегатор новостей 24СМИ
