These Are The Symptoms Of XBB.1.5, The Latest COVID-19 Variant Posted by covid 19 updates January 18, 2023 ShareForbes Forbes staff writer Arianna Johnson joins “Forbes Talks” to discuss XBB.1.5, the highly transmissible subvariant of omicron and is now the dominant COVID-19 variant in the U.S. after just a matter of months. covid 19 updates January 18, 2023