A new Covid variant, XEC, is spreading rapidly across Europe, with scientists warning it could soon become the dominant strain. XEC, a sublineage of the omicron variant, was first identified in Berlin in June and has since been reported in multiple countries, including the UK, Germany, Denmark, and the Netherlands. The variant, characterised as “more contagious” by experts, is raising concerns due to its fast growth rate and potential to outcompete existing strains.
According to Eric Topol, director of the Scripps Research Translational Institute, XEC is the variant “most likely to get legs next.” He noted on social media platform X that the variant is gaining traction and could spread further over the coming weeks. Covid data analyst Mike Honey also highlighted that Slovenia saw a significant presence of XEC in August, with over 10% of cases linked to this variant.
XEC is a hybrid of previously discovered omicron subvariants, KS.1.1 and KP.3.3, making it a formidable strain with enhanced properties for binding to human cells. KS.1.1, known as a FLiRT variant, involves specific mutations in its spike protein, while KP.3.3, categorised as a FLuQE variant, features amino acid alterations that make its binding more effective. These unique characteristics likely contribute to XEC’s rapid spread.
Currently, over 500 samples from 27 countries, including Poland, Norway, Luxembourg, Ukraine, Portugal, and China, have been identified with XEC. The strain’s rise in Europe and beyond signals a need for close monitoring as it continues to evolve. Its symptoms are similar to other Covid variants, such as fever, sore throat, cough, and body aches, with experts advising that updated vaccines and booster shots remain effective in preventing severe illness.
Despite its rapid spread, XEC is still considered a part of the broader omicron lineage, meaning that existing preventative measures and vaccines should offer sufficient protection. The US Centers for Disease Control and Prevention (CDC) also recommends maintaining good hygiene and ensuring clean air to minimise infection risks. Researchers are calling for increased surveillance of XEC to better understand its impact and guide public health responses.
For ongoing coverage and updates on the XEC variant, visit EyeOnLondon and stay informed on the latest Covid developments affecting the UK and beyond.
For in-depth scientific insights into Covid variants, including XEC, you can explore the latest research from the Scripps Research Translational Institute.



