How do you get a dinosaur sick?

Answer 1

Yup. Both germs and blood pump up to their noses, which leads to 2 reasons:

Reason1: They cough.

Reason2: They sneeze. They get a cold. They sneeze, "Ah-CHOOO!!!"

Answer 2

Dinosaurs could have gotten sick from pathogenic microbes or by consuming poisons, such as toxic plants. What these plants and pathogens would have been we don't know, because it is impossible to study pathogens or poisons from fossils. Things that exist today that would make vertebrate animals, reptiles, or birds sick would likely make a dinosaur sick, too.

Answer 3

We assume that dinosaurs, like all animals, suffered from various ailments. As the soft parts of their bodies didn't last, we can only guess that these were much the same as those living creatures have today. One case where a medical problem can be (probably) identified is that of a dinosaur who died from constipation. We suspect this because a large gastrolith(gizzard-stone) was found which the remains. Normally these stones, which help the dinosaur grind up its food, are passed harmlessly with the stool, but this one was too large and probably blocked up the intestine.

Answer 4

Whatever can make a human sick. Disease, mostly.