Dec 12, 2025 · The Stratus variant is fueling COVID-19 cases around the country. Symptoms of the virus look slightly different right now. Here, doctors share what to look out for and how to protect …

Jun 23, 2025 · A new COVID-19 variant that was unheard of just months ago is now projected to be the second-most common strain in the United States.

Aug 28, 2025 · New variants of SARS-CoV-2 are expected to continue to emerge. Some variants will emerge and disappear, while others will emerge and continue to spread and may replace previous …

Sep 18, 2025 · The latest COVID-19 variant known as XFG, nicknamed Stratus, continues to spread throughout the United States, driving a summer spike in cases.

Aug 5, 2025 · A new COVID-19 variant is climbing the ranks in the United States, becoming the third-most common strain of the summer.

1 day ago · A new form of flu is sweeping across the U.S, with the highly contagious variant leading to more severe symptoms than other strains. Named subclade K, the virus is a version of the H3N2 …

3 days ago · When you receive a COVID-19 test, you won't find out which variant caused your infection. That's because COVID-19 tests only detect the presence of the virus – they don't determine the …

Dec 17, 2025 · New Variant Raises Concerns of Another Bad Flu Season Here’s what to know about the dominant version of the virus that’s circulating now. Listen to this article · 4:37 min Learn more

Dec 2, 2024 · When these changes become significantly different to a previously detected virus, these new virus types are known as “variants.” To identify variants, scientists map the genetic material of …

Jun 11, 2025 · Currently making headlines is NB.1.8.1, an omicron variant that popped up in January and quickly became the dominant strain in China and Hong Kong. In recent weeks, NB.1.8.1 has …