California's first case of a COVID-19 variant first discovered in Brazil earlier this year was detected in San Bernardino over the weekend, county officials said.
The California Department of Public Health alerted the county to the case Saturday after it was detected in a positive test sample collected on March 2, San Bernardino County public information officer David Wert said in a statement.
Health officials are now investigating how the resident, a man in his 40s, might have been exposed to the variant. The man -- who has not been vaccinated -- is self-isolating at home, according to officials.
"We are taking immediate and aggressive action to contact trace and contain the virus and working with the CDPH in expanding whole genomic sequencing to identify more cases," said County Health Officer Dr. Michael S. Sequeira. "Slowing the spread of the disease and minimizing the spread of all variants is doable with contact tracing, strategic quarantine with masking and social distancing, and most importantly vaccination."
The P.1 "Brazilian'' variant is believed to be more contagious than the most-common strain of the virus.