British Covid trial deliberately infecting young adults found to be safe 0 02.02.2022 21:14 Business Standard The world's first "human challenge" trial in which volunteers were deliberately exposed to Covid-19 to advance research into the disease was found to be safe in healthy young adults Moscow.media Частные объявления сегодня Rss.plus Все новости за 24 часа Другие проекты от SMI24.net Музыкальные новости Агрегатор новостей 24СМИ