Ferrigno, 67, posted a photo of himself in a hospital bed on Twitter on Wednesday

He said the pneumonia shot left him with fluid in his bicep

Vaccine injuries can happen when the needle hits a fluid-filled sac, rather than the muscle

The Incredible Hulk actor Lou Ferrigno says he was hospitalized by a botched pneumonia vaccine.

Ferrigno, 67, posted a photo of himself in a hospital bed on Twitter on Wednesday, saying the shot left him with fluid in his bicep.

'I'll be ok but it's important that you keep an eye on who's giving the shot and make sure they not only swab the spot correctly but that you watch the needle come out of the package,' he said.