COVID-19: Over half of all Omicron carriers never knew they had it - study
Most cases of the Omicron variant of the coronavirus that causes COVID-19 never knew they were sick with the virus, which could have caused them to spread it.
People pose with syringe with needle in front of displayed words "OMICRON SARS-COV-2" in this illustration taken, December 11, 2021(photo credit: REUTERS/DADO RUVIC/ILLUSTRATION/FILE PHOTO)ByAARON REICH
