Matthew Diebel

USA TODAY

New Yorkers and others further afield took to social media to criticize New York City Ebola victim Dr. Craig Spencer for going out and about in the city — including on the subway, in an Uber car and visiting a bowling alley — despite reportedly feeling unwell, though apparently before full symptoms exhibited themselves.

"Dr. Craig Spencer returned from treating Ebola patients in Guinea on Oct 17 and didn't think to at least self quarantine?!" wrote Twitter user @DodieClouse about the case.

Meanwhile, tweeter Jake Nyborg vented:

And New Yorker Melissa Stetten (@MelissaStetten) asked: "How did you get ebola? You rented some bowling shoes on Wednesday night and had a scratch on your toe? That's bad luck, man."

Spencer returned to New York from Guinea, where he had been working with Doctors Without Borders treating Ebola patients, and was declared asymptomatic at a New York City-area airport. He flew out of the West African nation on Oct. 14, traveling via Europe, and arrived in New York on Oct. 17.

Twitter users said he should have thought more about others' safety.

"#EbolaNYC doctor had overwhelming evidence he must self quarantine. Use common sense! Should be tried for manslaughter if he infects anyone!" tweeted Orlando, Fla., resident Nick Egoroff.

Others were just as vociferous, such as:

And Staten Island native and former Jersey Shore star Vinny Guadagnino was forthright in his criticism: "ABSOLUTELY NO SYMPATHY for a doctor who knows he's been in contact w/Ebola, goes bowling, takes 2 subways, has contact with girl, Uber. none"

In typical New York style, some used gallows humor to highlight their thoughts:

But mostly there was a sense of outrage on display.

Also, a call for common sense: