New virus variants threaten a summer Covid-19 wave, but experts say the risk remains uncertain

Covid-19 levels are currently at their lowest point in the United States. However, the emergence of new virus variants threatens to disrupt the downward trend as summer approaches. One of these variants, called KP.2 or FLiRT, has become the dominant variant in the country, accounting for more cases than the previous variant, JN.1. Another variant, KP.1.1, is responsible for about 7% of cases. These FLiRT variants are part of the broader Omicron family and have mutations that make the virus more transmissible. Experts are uncertain about the exact level of risk these variants pose and whether they will lead to a summer wave. Due to limited Covid-19 surveillance, there is uncertainty about the situation. Wastewater surveillance and hospitalization rates suggest low viral activity. While the FLiRT variants are highly contagious, they do not appear to cause more severe illness. Covid-19 hospitalization rates have decreased, but experts are concerned about what might happen in the fall when conditions for transmission may be more favorable. Research indicates that Covid-19 has been deadlier than the flu, with a 35% higher risk of death. People who have received the latest Covid-19 vaccine and those who have had recent infections may have some protection against the variants. The FDA’s vaccine advisory committee will meet in June to discuss recommendations for the fall Covid-19 vaccine. Overall, experts believe that the current risk remains relatively low.