Health officials in Wisconsin confirmed its first case of coronavirus Wednesday, raising the total number of cases in the U.S. to 12. Earlier, hundreds more Americans evacuated from the city at the center of the outbreak landed in California.

The two planes, carrying about 350 people in total, arrived at Travis Air Force Base in Northern California and Marine Corps Air Station Miramar in Southern California. All the passengers will spend up to two weeks under quarantine in California while they are monitored for symptoms of the potentially deadly new virus.

As of Wednesday morning the death toll from the virus stood at 492 — virtually all of them in mainland China — with more than 24,000 others infected. As CBS News correspondent Ramy Inocencio reports, all 65 of the deaths confirmed between Tuesday and Wednesday were from China’s central Hubei province, where Wuhan is located and where the evacuated Americans had been staying.

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