Sign up for our special edition newsletter to get a daily update on the coronavirus pandemic.

A veteran subway conductor and bus operator passed away from the coronavirus Thursday, family and co-workers told The Post — marking the first two known deaths for the MTA’s 74,000-person workforce.

Peter Petrassi, 49, a conductor who suffered from diabetes, checked into a hospital Friday night after days of feeling ill and was then tested for COVID-19, colleagues said.

The Queens man, who spent 20 years in the MTA’s subways department, was remembered fondly by friends and family.

“This man would make everyone’s day a better day when he comes in,” one colleague posted on a transit worker Facebook group.

“This is unbelievable that he’s gone the crew office will never be the same.”

His nephew, Dylan Petrassi, posted on Facebook that his Uncle Peter was “the most kind loving adventurous food enthusiastic person” and “someone who put other people before himself.”

Oliver Cyrus, a bus operator working out of the Manhattanville Depot, also succumbed to his illness Thursday, according to his union. Cyrus spent 21 years at the MTA.

“He was well-liked by all his co-workers,” said Richard Davis, a vice president at the Transport Workers Union Local 100 who knew Cyrus, in a statement.

“The workers at Manhattanville are all very upset. There’s a somber mood at the depot.”

The MTA has been forced to scale back service this week across its buses, subways and commuter rails due to a surge in workers calling in sick due to COVID-19 symptoms or exposure.

At Wednesday’s teleconference MTA board meeting, agency officials repeatedly refused to disclose how many workers are missing work due to virus symptoms or official self-quarantine orders.

The agency confirmed Petrassi’s death, though not its cause.

“Our hearts are absolutely broken. Peter was a vital member of our team, and a valued friend,” MTA Transit chief Sarah Feinberg said in a statement. “We are honored to have worked with him, and our thoughts are with his family and loved ones.”

In a statement, Transport Workers Local 100 President Tony Utano said Petrassi’s passing was “a line-of-duty death just as if he had been killed on the job in any number of ways that have struck down transit workers in the past.”

Petrassi’s colleagues suspect he contracted the virus at work after recently recovering from the flu.