Recent data show that COVID-19 cases are on the rise in several dozen U.S. states, according to the U.S. Centers for Disease Control and Prevention (CDC).
Several CDC officials didn’t respond to requests for comment by press time.
“Most key COVID-19 indicators are showing low levels of activity nationally, therefore, the total number of infections this lineage may be causing is likely low,” a CDC spokesperson said in a statement earlier this month, while adding the variant will become the “most common lineage” around the United States.
Andy Pekosz, a molecular microbiology professor at Johns Hopkins University, said that the KP.3 variant also doesn’t appear to cause more severe symptoms, adding that antibodies provided through prior infection or vaccines have led to better outcomes in recent months.
“You are contagious one to two days before you experience symptoms and a few days after symptoms subside. And as with previous variants, some people may have detectable live virus for up to a week after their symptoms begin, and some may experience rebound symptoms,” Mr. Pekosz said.
In May, the CDC announced that hospitals are no longer mandated to report COVID-19 hospital admissions, capacity, or other COVID-19 information. The old “data will be archived as of May 10, 2024, and available at United States COVID-19 Hospitalization Metrics by Jurisdiction, Timeseries,” according to a statement posted on the CDC website last month.
“We’ve seen descendants of that moving along, that’s KP.2, KP.3 and LB.1,” the FDA’s Dr. Peter Marks told news outlets on June 21. “So these other new variants, these came up relatively quickly. I wouldn’t say they caught us by surprise, but because they happened relatively quickly, we had to react.”