CHICAGO (WLS) -- The first omicron variant in Illinois was tested at a Rush University Medical Center lab in December after sequencing COVID samples from across the city of Chicago. "Since then it has ...

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

NEW YORK -- What are the symptoms of omicron? Health experts still don't know if the new variant is causing milder COVID-19, but more indicators are emerging. The World Health Organization's top ...

During a period when the Omicron coronavirus variant was dominant, severe outcomes for patients hospitalized with Covid-19 -- including ICU admission, ventilator use and death -- were less common than ...

Postacute sequelae of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (PASC) can affect many organ systems. However, temporal changes during the coronavirus disease 2019 ...