A new Covid variant, XEC, is beginning to spread and could soon become the dominant strain, according to scientists. First identified in Germany in June, the XEC variant has since surfaced in countries like the UK, US, and Denmark. While the variant carries some mutations that may enhance its ability to spread during the autumn months, experts believe that vaccines will continue to offer strong protection against severe illness.

For individuals at higher risk of serious illness from Covid, the NHS is providing free booster shots. These updated vaccines are tailored to combat recent variants, though not specifically XEC, which evolved from earlier Omicron subvariants.

Prof. Francois Balloux, Director of the Genetics Institute at University College London, explained to BBC News that XEC may have a "slight transmission advantage" over other recent variants, but vaccines should still be effective. He added that it is possible XEC will become the dominant subvariant this winter.

Dr. Eric Topol, Director of the Scripps Research Translational Institute in California, said the XEC variant is "just getting started" and could take several weeks or months to gain widespread traction and potentially cause a surge in cases.

Symptoms of the XEC variant are similar to those of previous Covid strains, including fever, body aches, fatigue, and a cough or sore throat. While most people recover within a few weeks, some may take longer to feel better.

Covid data analyst Mike Honey has noted significant growth of XEC in Denmark and Germany, although decreased routine testing makes it difficult to track the virus accurately.

The UK Health Security Agency (UKHSA) reiterated that it is normal for viruses to mutate. Dr. Gayatri Amirthalingam, Deputy Director of UKHSA, emphasized that vaccination remains the best defense against serious illness from Covid. The autumn vaccine drive will begin in October, targeting high-risk groups such as adults over 65, individuals in care homes, and frontline health workers.

UKHSA continues to monitor the spread of the XEC variant and urges those eligible to receive their vaccines when contacted by the NHS.