U.S. health officials tracking COVID-19 increase in U.K.

The article reports that the U.S. health officials are watching the steady climb in COVID-19 cases in the United Kingdom, which signal works condition in the U.S. It mentions that Health officials in the United Kingdom have noted the latest increase is likely due to the contagious BA.2 Omicron subvariant, the recent loosening of coronavirus restrictions, and waning immunity from vaccinations and infections.