Health officials hold emergency meeting as virus cases spike worldwide

The novel coronavirus has continued to spread with more than 45,000 cases worldwide, as nearly 200 people quarantined in California have now been released.
2:30 | 02/12/20

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Transcript for Health officials hold emergency meeting as virus cases spike worldwide
Now to the coronavirus emergency. Cases spiking to more than 45,000 worldwide. But some good news this morning. Nearly 200 people quarantined in California are now free celebrating their release by throwing their masks in the air. Will Carr is in San Diego with all the latest. Good morning, will. Reporter: And, Michael, the past couple of weeks it's great to see that celebration but here in San Diego there is real concern after a woman who tested positive was transferred from a hospital to this air station by mistake. It comes as the coronavirus has a new name, a name you'll be hearing a lot. This morning the world health organization says the coronavirus epidemic now known as covid-19 could have a catastrophic impact on the world. More powerful consequences than any terrorist action. Reporter: More than 45,000 confirmed cases worldwide and that quarantine cruise ship off the coast of Japan, 39 more passengers sickened with the that brings the total to 174 making it the largest cluster of cases outside mainland China. Today's day six. We haven't been feeling -- our appetite has gone away. Reporter: They've been trapped in their cabin and don't have access to a window and can only get fresh air once every four days. Even worse John's temperature spiked to 103 degrees. Got a great big bucket of ice and we're doing cold compresses on John. Reporter: The potentially deadly virus jumped from that ship to the shore after a Japanese health worker inspecting the passengers tested positive. In the United States, 1 people have been infected. We're learning more details about the latest. A woman quarantined in San Diego after Marine Corps air station, the patient was 1 of around 800 who evacuated Wuhan, the hot zone and arrived in Mira mar and was taken to the hospital but then discharged and allowed to return to the base after a labeling mix-up made those in charge think she tested negative. Authorities caught the mistake Sunday and she was rushed back to the hospital. Despite that mistake authorities say they have nothing to worry as for the new name covid-19 which doesn't exactly roll off the tongue the world heah organization say they picked that specifically to avoid stigmas. Thank you. Now to the firestorm over

This transcript has been automatically generated and may not be 100% accurate.

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