New York Gov. Andrew Cuomo and New Jersey Gov. Chris Christie have announced a mandatory, 21-day quarantine for travelers who have had contact with Ebola patients in West Africa.

New York City’s first Ebola patient Dr. Craig Spencer was riding the subway, bowling and riding in an Uber the day before he was diagnosed with Ebola.

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“He’s a doctor and even he didn’t follow the guidelines for the quarantine, let’s be honest. So we have to do more. It’s too serious a situation to leave it to the honor system of compliance,” Cuomo said today.

“We were operating under the CDC guidelines, which we assumed were appropriate guidelines. I think we’ve learned that we need to go further than those guidelines.”