Parvo shot: How long until it works & are older dogs immune?

Hello, thank you for using Petco Pet Education Center, formerly Petcoach. The best information that we have for Parvo immunity is that puppies are immune from the virus for a very long time. We do not know if the immunity lasts a life time, but unless there is something seriously wrong with the puppies immune system, they should not get the virus again. This does not mean you should stop or skip any vaccinations. Continue with them for the rest of ChaChi's life. Take care.

Most adult dogs that were appropriately vaccinated against parvo as puppies - meaning 3 different vaccinations, given no earlier than 8 weeks of age and proceeding at 3 - 4 week intervals - are protected against contracting parvovirus, as long as they receive booster vaccinations as recommended. Typically, the recommendation is one vaccination on the one year anniversary of the last puppy vaccination, and then re-vaccination every 3 years after. Just one parvo vaccination is unlikely to be completely effective, but it may provide some protection, and if he contracts the disease it will likely be a milder form.

Thanks for using Petco Pet Education Center, formerly Petcoach! That is not how vaccines work unfortunately. Vaccines require the immune system of the vaccinated patient to mount a response which may take a few weeks. By that time, parvovirus is unlikely to be in your pup's system. The best thing would be to separate them for at least 3 weeks until everything clears on your pup and make sure your German Shepherd does not have contact with your pup. Best of luck!

No, it won't hurt her. It will still work as a vaccine against parvovirus, but not against parainfluenza. She will need a booster vaccine in about 3 weeks, and make sure she's also getting vaccinated for distemper virus and adenovirus. Thanks for asking Petco Pet Education Center, formerly Petcoach!

The risk is probably pretty low, but Lucy may not have full immunity for a couple of weeks after this last vaccine was administered. We booster this vaccine frequently to hopefully catch a dog during the window where antibody leftover from mom is declining and the puppy can make it's own immune response - this may have already happened, or she may be in the process of mounting this immune response now. If Lucy seems nauseous, if she is vomiting, or if her appetite is decreased I'd recommend seeing your vet right away.

If most of the vaccine got under the skin, it will still be effective, assuming it has been shipped, handled, and reconstituted properly. Because they can be finicky vaccines, I always recommend having your vet vaccinate. Of course if you choose to vaccinate your pet yourself, follow the reconstitution and handling instructions exactly. Temperature, and using the vaccine right away is crucial. Also know that vaccine makers will pay for parvo treatment if your pet has been vaccinated by a veterinarian at the proper intervals. Of course, no matter how you choose to vaccinate Cookie, be sure that she stays away from dog parks, pet stores, and anywhere else that other dogs are frequently found. In fact if you can keep her in a back yard or using the same little area to urinate/defecate that is best. I recommend this for all pups until they are fully vaccinated. Hope this helps and best of luck to you and Cookie!

It depends on when Luna got her vaccines started. The vaccine series ends at 16 weeks of age because that is when her immune system is fully mature. It looks like she is still just shy of 16 weeks so I would recommend one final set between 16-18 weeks of age. I hope this helps clear things up!