As of 25 June 2025, the variants of interest as specified by the World Health Organization are JN.1, and the variants under monitoring are KP.3, KP.3.1.1, JN.1.18, LP.8.1, NB.1.8.1, XEC and XFG.

Aug 28, 2025 · Some variants will emerge and disappear, while others will emerge and continue to spread and may replace previous variants. It is important to track the emergence of variants so that …

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 …

Nov 10, 2025 · Variants carrying resistance mutations were often antigenically distinct from the variants that preceded them, affecting antibody treatments and vaccine effectiveness.

Nov 29, 2021 · Any change to the viral genetic sequence during this process is known as a mutation, and viruses with new mutations are sometimes called variants. Variants can differ by one or multiple …

Jun 18, 2025 · Here, you can find out what mutations define a variant, what impact they might have (with links to papers and resources), where variants are found, and see the variants in Nextstrain builds!

Oct 12, 2025 · All strains are variants, but not all variants are new strains. Here’s a look at the most notable strains and variants of the COVID virus throughout the pandemic.

Variants such as Alpha (B.1.1.7), Beta (B.1.351), Gamma (P.1), Delta (B.1.617.2), and Omicron (B.1.1.529) have been identified and classified by the World Health Organization (WHO) as variants …

Oct 24, 2025 · Concern over variants, sometimes called strains, of the virus that causes COVID-19 is based on how the virus might change. A virus could get better at infecting people, spread faster or …

Aug 29, 2024 · AAMCNews spoke with academic experts in infectious disease, viruses, and vaccines to answer some common questions about the latest variants and the new vaccines.