LAS VEGAS — Nevada health officials have confirmed the state's second confirmed case of the coronavirus caused by the highly transmissible omicron variant.
The second case was found in Churchill County and involved an unvaccinated woman in her mid-40s, according to the Nevada State Public Health Laboratory.
The case is being investigated, officials said Friday.
The first case was a woman in her mid-20s who tested positive for the variant in Clark County and who was vaccinated but had not received a booster dose, the district health office in Las Vegas said Tuesday.
The individual traveled out of the country during the incubation period and, upon returning, had symptoms consistent with COVID-19, the district said.
The World Health Organization classified the new variant as a variant of concern on Nov. 26.
U.S. health officials estimate that a small, but growing proportion of new COVID-19 infections are due to omicron, and that the rise is particularly dramatic in some places.