Russian COVID-19 jab for teens quite similar in composition to Sputnik V — developer 0 27.10.2021 18:11 Tass.com The vaccine was adjusted to obtain optimal efficiency with minimal side effects, Vladimir Gushchin from the Gamaleya National Research Center noted Партнёры Smi24.net Все новости за 24 часа Музыкальные новости Агрегатор новостей 24СМИ