On Wednesday, California health officials announced the first identified case of an omicron in the United States. A test-positive person recently returned from a trip to South Africa. According to officials, everyone with whom they contacted gave a negative result.
The Centers for Disease Control and Prevention is developing safety measures against possible transmission of the virus, including plans to require people traveling to the United States to test negative for COVID-19 the day before landing, even if they are fully vaccinated.
Officials in Brazil are also considering new security measures as three cases of omicron have been confirmed in the country. Measures under consideration include requiring proof of vaccination and canceling carnival altogether if conditions worsen. Brazil has lost 610,000 lives to the virus, second only to the United States.
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