FLiRT variant detected in 14 countries in Europe already
CDC recommends updated shots
EU drug regulator finds no safety signals either
There's no approved treatment
Two subvariants now account for half of all US cases
Milder disease caused by Omicron variant linked to COVID-19 shots - study
Booster shots needed after Pfizer-BioNTech, AstraZeneca shots
CDC adds three new symptoms to COVID-19 list