Ewen Callaway A driver is tested for COVID-19. Credit: US Army/ZUMA Press Wire Service/Shutterstock New year, new variant. Just as scientists were getting to grips with the alphabet soup of SARS-CoV-2 variants circulating globally — your BQ.1.1, CH.1.1 and BF.7 — one lineage seems to be rising to the top, thanks to a peculiar new...
