Just before South African scientists identified the Omicron coronavirus variant, many experts were beginning to focus on a completely different potential problem: the collision of Covid-19 and influenza, which is now in the first weeks of its annual surge.
Just before South African scientists identified the Omicron coronavirus variant, many experts were beginning to focus on a completely different potential problem: the collision of Covid-19 and influenza, which is now in the first weeks of its annual surge.