New COVID Variant Spreading in US, but Risk Is Low: Experts

Published on November 28, 2023

The new BA.2.86 variant, unofficially known as Pirola is taking hold in the United States. Between Oct. 28 to Nov. 25, its prevalence increased from 1 to around 9 percent in the United States, according to the U.S. Centers for Disease Control and Prevention (CDC). The World Health Organization designated Pirola as a variant of interest on Nov. 21, yet it also found the public health risk posed by BA.2.86 to be “low at the global level (pdf).” In an update published on Nov. 27, the CDC agreed with the WHO’s assessment “that the public health risk posed by this variant is low compared with other circulating variants, based on available limited evidence.”...