Covid variant XBB.1.5; The highly contagious new variant of COVID-19 XBB.1.5 is already dominant in the United States, with numbers doubling

Covid variant South Korea; China and South Korea are experiencing its largest outbreak of covid recording over 4,00,000 infection cases

Another new COVID variant; A COVID-19 variant found for the first time in South Africa may be more contagious than other mutations - and may