US summer Covid-19 surge: New Omicron subvariants become health threat 0 12.07.2022 10:57 Business Standard The latest versions of Omicron subvariants, BA.5 and BA.4, are highly contagious and have accounted for more than 70 per cent of new Covid-19 infections in the US Moscow.media Частные объявления сегодня Rss.plus Все новости за 24 часа
