Omicron COVID-19

Dr. Laura Hawryluck says she felt something more was coming. In November 2021, the Toronto-based critical care doctor had just experienced the toll COVID-19’s Delta variant could have on the human body. However, something told her…

Since its emergence in 2020, COVID-19 has produced multiple mutations as it spread across the world. Many of those variants did not become dominant, but few did including Alpha, Delta and Omicron. Those mutations caught the attention…

Moderna‘s experimental COVID-19 vaccine that combines its original shot with protection against the Omicron variant appears to work, the company announced Wednesday. COVID-19 vaccine makers are studying updated boosters that might be…

A third dose of Pfizer Inc. and BioNTech’s COVID-19 vaccine produced significant protection against the Omicron variant in healthy children aged between five and 11 years in a trial, the companies said on Thursday. Blood serum…

At the beginning of the COVID-19 pandemic, retired teacher Lois Armstrong said local health officials where she lives in Kingston, Ont., provided daily updates about outbreaks, cases and deaths in the community. Now, Armstrong, 68,…

The World Health Organization said on Monday it is tracking a few dozen cases of two new sub-variants of the highly transmissible Omicron strain of COVID-19 to assess whether they are more infectious or dangerous. It has added BA.4…

As has been shown in other countries, vaccine boosters performed better against the Delta variant than Omicron, a highly mutated version of the SARS-CoV-2 virus that has been able to evade immunity from vaccines and prior infections. One…

A new poll suggests a slim majority of Canadians support the latest round of lockdowns and other government-imposed restrictions as the Omicron variant continue to fuel an explosion in new COVID-19 infections. Fifty-six per cent…

COVID-19 cases are threatening to overwhelm hospitals in several parts of Canada, with hospitalizations nearing or reaching record highs in Quebec, Ontario, and New Brunswick. Former CEO of the University Health Network and…

COVID-19 hospitalizations in young children have reached their highest level yet in the United States, as Omicron fuels a major surge in cases, but it is not clear yet whether the variant causes more severe disease in young…