New COVID 19 variant FLiRT spreads in US
Since the COVID pandemic has slowed down and cases have dropped, there are now new versions of the virus popping up. One of these is called FLiRT, and it's spreading fast in the US. FLiRT comes from a version of the virus called JN.1 that caused a lot of cases last winter. Scientists are especially worried about a part of FLiRT called KP.2.
About 25 percent of the new COVID cases in the US are from KP.2. Experts are still figuring out if FLiRT spreads easily or makes people really sick. They've found that FLiRT has changes in its spike protein, which helps the virus infect people.
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