A confirmed coronavirus patient is being treated at Brooklyn Hospital Center — but the case is being kept hush-hush, according to one fuming former volunteer, who quit after learning of the situation.

“I found it very concerning and odd that this wasn’t public information,” Peter Corbett, the now-former volunteer, told The Post.

The patient, a 22-year-old man, was admitted Sunday in stable condition, a hospital spokeswoman said, and an internal email obtained by The Post shows that staffers were alerted Monday.

The troubling information, however, was slow to reach volunteers like Corbett, who said the tight-lipped approach showed a lack of regard for those at risk.

The word was not spread more widely out of concern for HIPAA privacy considerations, said Kim Flodin, a spokeswoman for the Downtown Brooklyn facility.

“All protocols were covered,” Flodin added.