Colin Jost posted an alarming update on the injuries and illnesses he sustained during his harrowing — and hilarious — coverage in Tahiti as an Olympics Surfing correspondent, and NBC has labeled him a scourge!

NBC, according to Colin, has diagnosed him with leprosy … true, the network brass aren’t doctors, but it’s a fair assessment after the “SNL” star had to leave the games because he was doing himself in with gashes, bites and infections.

Colin himself said he’s been declared a “leper” by his own network. That typically means he needs to isolate to protect himself and others. Obviously a joke … but still, we get the point.

Jost suffered a nasty toe injury on the reef at Teahupo’o, Tahiti, while he was surfing during his down time. That led to a staph infection — and an ant infestation in his wound — followed by a nasty ear infection that kept him out of the water for the remainder of his trip.

Scarlett Johansson’s hubby seems to be enjoying his time in the Mediterranean …  he hit up a local casino where he blew “the hundreds of dollars I’ve earned as a surfing correspondent.”

Colin said he fit right in on the island … since Malta was the home of multiple bubonic plague outbreaks.

Colin didn’t look back with remorse on his time in Tahiti. He thanked the locals for their warmth and hospitality … and for “occasionally looking at [his] foot and and whispering ‘Chupacabra.'”