Burger King has an unusual ingredient it believes will convince...

A health worker checks the temperature of women entering the subway in Beijing.

More than two dozen people have been quarantined in Westchester County after recently returning from places affected by the coronavirus outbreak, officials said.

The 26 Westchester residents — who are being voluntarily quarantined, mostly in their homes – have not shown any symptoms of the illness, county health chief Dr. Sherlita Amler said Tuesday.

“These people are not ill, but we still have to monitor them,” Amler told reporters, according to the Journal News/lohud.com.

Citing privacy concerns, officials did not disclose where the people were being quarantined.

“This is serious, but it’s not reached a stage by which undue speculation is warranted,” County Executive George Latimer said at the briefing, WCBS reported.

Amler said authorities were making sure “the individuals have everything they need to maintain their separation, their isolation within their homes, so food, medications, whatever they need.”

Westchester officials said medical workers can video conference with people at all times of the day as they monitor their conditions.

“You’re watching to see if people develop symptoms of the disease, and at that point, you would then test them if they did,” Amler said.

There are 15 confirmed cases of coronavirus, or COVID-19, across the US, but none in New York state.