The Centers for Disease Control and Prevention (CDC) on Friday said the first known Omicron COVID-19 case in the United States was discovered in a person who traveled internationally and had symptoms starting Nov. 15.
The World Health Organization (WHO) named the variant on Nov. 26 as one “of concern.” Authorities in California reported what was thought to be the first U.S. case on Dec. 1 after an international traveler on Nov. 22 traveled from South Africa to San Francisco and developed symptoms.
