Two new COVID variants, called ‘FLiRT’ in the United States

Symptoms of the FLiRT variants, such as KP.2, are similar to other Omicron strains. These include sore throat, cough, fatigue, congestion, runny nose, headache, muscle aches, fever or chills, and in some cases, a loss of taste or smell. The severity of symptoms often depends on individual health factors and immunity.