What color should the Pneumonia vaccine be? Clear? How to tell if it
is expired or gone bad?

There should be an expiry on the packaging and vile of the vaccine. If
there isn't one, return the product to your pharmacist or doctor to
check. (Why you have it in your posession and its not the doc giving
it to you I have no idea!)

Vaccines are clear, I wouldn't see the point of dyeing them, since
they are meant to be IV drugs. They don't change colour when they
expire unless something starts to grow in them (mould or bacteria).

Thank you baz2121-ga, my father received a vaccine that was brown in
color and became very ill and was hospitalized. He was treated with a
very stong IV antibiotic for 2 days for an infection of the arm that
the vaccine had been given. We are trying to find documentation on the
pneumonia vaccine and shelf life, or anything stating what could have
been growning.