A highly infectious new variant of Omicron skips vaccines and reinfection
The sick are in Shanghai about 18 million people A new highly contagious variant of COVID-19 has appeared in Britain, Western media reported. The mutation, called XBB.1.5, now occurs in one in 25 cases on the island. It has also caused alarm in the USA, where it is responsible for 4 out of 10 patients … Read more