Flu season in the US is heating up, driven by new subclade K ...
6 days ago · This new variant wasn’t included in this year’s flu shots because it was identified after scientists had chosen the four strains to include this year.
Variants and Genomic Surveillance | COVID-19 | CDC
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 …
New COVID variant 'Stratus' spreading in US: symptoms, what ...
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.
What to Know About COVID Variant XFG Stratus
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.
VARIANT Definition & Meaning - Merriam-Webster
The meaning of VARIANT is manifesting variety, deviation, or disagreement. How to use variant in a sentence.
COVID-19 variants: What's the concern? - Mayo Clinic
Oct 24, 2025 · If a mutation changes how a virus acts in a group of people, it's called a variant. Scientists across the world track the changes in the virus variants that cause COVID-19.
The New Flu Variant Could Spread Widely This Year. Here’s ...
1 day ago · Here’s what to know about the dominant version of the virus that’s circulating now.