Even as COVID-19 activity remains high in the United States, a new variant - XEC is spreading rapidly in Europe and other parts of the world. Although few cases have been detected in the US so far, experts are projecting that XEC could be on track to become the dominant strain in the country this fall.

Here's everything we know about the new variant, including what the experts have said about a new wave and the symptoms Covid sufferers have reported in recent weeks. Is a new wav