Owners of unvaccinated pets should get to a veterinarian for a preventive program. Those who choose shot clinics should make sure the vaccines are handled properly and are administered by a licensed professional. Rabies vaccine must be administered by a veterinarian according to Ohio law. Any dog showing signs of illness should be examined before being vaccinated. Internal parasites Infestation of internal parasites such as roundworms and heartworms can cause coughing.
Roundworms live in the canine intestine.
The dog can become infected by licking or eating soil contaminated with eggs. As they migrate up the windpipe, the larva can cause bouts of coughing. Puppies can be born with roundworms if the mother is infested. Pregnant bitches can carry encysted roundworm larva in their tissues. In the last stages of pregnancy, the larva are emitted, enter the bloodstream, and travel to the puppies through the placenta.