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Tuesday, June 28, 2022

What we know about U.S. omicron cases

A COVID-19 testing facility is advertised at Newark Liberty International Airport on November 30, 2021 in Newark, New Jersey.

Spencer Platt | Getty Images

More than 20 people across 11 U.S. states have tested positive for the omicron variant of the virus that causes Covid-19. The patients range in age, vaccination status and travel history, but none of them have developed severe disease so far.

While some patients had recently traveled in southern Africa, where the variant was first detected, others had no travel history, indicating that community transmission is underway in the U.S.

“We absolutely have community spread in this country,” Dr. Anthony Fauci told Bloomberg Television on Friday. “We don’t know how many of them, but there’s no doubt there’s community spread.”

Scientists and public health officials are still collecting data on whether omicron is more transmissible, better evades immune protection from vaccines, and/or causes more severe disease than other variants.

Those who have tested positive in the U.S. have all shown mild to moderate symptoms and none of the patients have been hospitalized so far, according to the most current information from state public health departments. However, mild cases of Covid can progress to more severe disease over time.

Many of the people who have tested positive in the U.S. were fully vaccinated. At least two of the patients who were immunized had not received booster shots yet, but another person had received their additional dose. And in at least one case, a person who had previously recovered from Covid tested positive for omicron.

While the handful of cases in the U.S. don’t provide any definitive answers about omicron, the World Health Organization said Friday that early data suggests the virus is more contagious. And South African scientists published a study, which has not yet been peer reviewed, that found omicron carries a higher risk of reinfecting people who previously caught Covid than past variants.

Although some of the people who tested positive for omicron were fully vaccinated, the fact that they have developed mild symptoms suggests that the shots are still providing protection against severe disease from the variant, U.S. health officials said. Fauci said Friday during a White House Covid briefing that lab studies indicate booster shots increase antibody protection against a range of variants.

“There’s every reason to believe that if you get vaccinated and boosted that you would have at least some degree of cross-protection,” Fauci said, “very likely against severe disease, even against the omicron variant.”

California

Minnesota

Colorado

On Thursday morning, Colorado confirmed a case of omicron in a fully vaccinated adult woman who had not received a booster shot. The woman, like the first case in California, had a recent travel history to southern Africa, where the variant was first detected. She is experiencing minor symptoms and is recovering at home, according to Colorado’s health department.

Gov. Jared Polis told residents during a press conference Thursday that health officials believe community spread is low in Colorado at the moment. Health officials have not yet detected omicron through wastewater analysis, and they have not detected a second case through genetic sequencing yet.

“So if it was prevalent, we would know — it doesn’t mean it’s nonexistent,” Polis said.

Hawaii

Hawaii confirmed a case in Oahu on Thursday in a person who was previously infected with Covid, was never vaccinated and had no travel history, according to the state health department. The person is showing moderate symptoms, it said.

“This is a case of community spread,” the department said in a press release.

Nebraska

Nebraska confirmed six omicron cases Friday, in a transmission chain that appears to have started with a person who recently traveled to Nigeria. The other five people were likely exposed through household contact with the person who had traveled to Africa, according to the state health department. Only one of the six people was vaccinated, but none of them have required hospitalization.

Maryland

Maryland on Friday confirmed three people from the Baltimore metro area tested positive for omicron. Two of the people are from the same household, a vaccinated person who had recently traveled to South Africa and a close contact of that person who was unvaccinated. The third case was in a vaccinated person who had no known recent travel history, according to state officials.

“None of the three individuals are hospitalized,” Gov. Larry Hogan said in a press release.

Pennsylvania

A man in his 30s from northwest Philadelphia has tested positive for omicron, city officials confirmed on Friday. Philadelphia’s health department said it is working to get more information on the case.

Missouri

A St. Louis resident with recent domestic travel history is presumed positive for omicron, the Missouri state health department said Friday. The sample was sequenced by a commercial lab and is awaiting confirmation by the Centers for Disease Control and Prevention.

The Missouri state health department did not provide information on the individual’s age, vaccination history or symptoms. CNBC has reached out to state health authorities out for more information.

New Jersey

The New Jersey Department of Health has confirmed a case of omicron in a traveler from Georgia who was recently in South Africa. The adult woman, who is fully vaccinated, experienced moderate symptoms and is now recovering after receiving care in an emergency department in northern New Jersey, according to state health officials.

New York

New York identified five cases of the omicron variant Thursday evening, but the details are sparse.

A 67-year-old woman in Suffolk County tested positive after recent travel to South Africa, according to Gov. Kathy Hochul. The patient had some vaccination history, but it’s not clear if she was fully immunized or had received a booster. The woman has shown mild symptoms, including a headache and cough.

Two people also tested positive in the New York City borough of Queens, and another person tested positive in Brooklyn, but their vaccination histories were unknown as of Thursday evening. Another traveler also reportedly tested positive in the city, though the governor didn’t provide any additional information.

CNBC has reached out to New York City’s health department requesting further details on the vaccination status and symptoms of the people who tested positive for omicron.

New York City Health Commissioner Dave Chokshi told the public Thursday that the cases indicate there is community spread in the state.

“This is not just people who are traveling to southern Africa or to other parts of the world where omicron has already been identified,” Chokshi said.

Utah

Utah confirmed its first case of the omicron variant, public health officials confirmed Friday.

Officials said the individual who tested positive was an older adult who recently returned home to Utah after traveling to South Africa.

The person is fully vaccinated and showed only mild symptoms. They received monoclonal antibody treatment.

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