A new variant of the virus that causes COVID-19 is spreading in the U.S., raising concerns about a potential wave of infections and reinfections to start the new year.

COVID-19 vaccination showed effectiveness in reducing hospitalizations and severe disease outcomes associated with the SARS-CoV-2 JN.1 lineage, according to a recent study published in JAMA Network ...

Updated 2024-2025 COVID-19 vaccines significantly reduced the risk for hospitalization and severe outcomes despite the emergence of new viral lineages.

A new COVID-19 variant called "Stratus" has been circulating in Oklahoma, and the state's positive test rate has been higher than the national average during the summer months. Stratus is the ...

Covid-19 was never just another cold. We knew it was going to stick around and keep changing to try to get the upper hand on our immune systems. But we've changed, too. Our B cells and T cells, ...

New COVID-19 variant XFG has firmly positioned itself as the predominant strain in the United States as cases continue to crop up nationwide. Some regions of the U.S. are experiencing higher rates of ...

Mark Cameron was part of the rapid-response research team when the SARS (Severe Acute Respiratory Syndrome) outbreak hit Toronto in the early 2000s. Now a faculty member in Population and Quantitative ...

COVID-19 severity appears to be declining among hospitalized children as the Omicron variant continues to evolve.

A highly transmissible COVID-19 strain is driving a surge of infections across the United States. Nicknamed 'Stratus,' the XFG strain has been spreading in various parts of US. Recent reports suggest ...

COVID-19 cases continue to climb week-over-week as summer draws to a close, according to U.S. health data. Some regions of the United States are experiencing higher rates of positive COVID-19 tests ...