News » San Antonio News

City of San Antonio Warns Dog Owners of Parvo, A Potentially-Deadly Virus More Likely in Summer


  • Animal Defense League of Texas
As summer continues to blast San Antonio with heat, the city has begun to remind dog owners to stay on the lookout for another summer killer: canine Parvovirus.

Canine parvovirus, commonly known as parvo, is a highly contagious intestinal virus that causes severe vomiting and diarrhea in puppies. While spring is considered to be the virus’ most active season, warmer areas like Texas experience outbreaks throughout the summer as well.

The virus attacks in two forms with their own round of symptoms, the latter being the most severe. The first and most common form is Hemorrhagic Gastroenteritis (CPV-1) which causes puppies to experience anorexia, dehydration, vomiting and diarrhea. The second form is Myocarditis, also known as canine minute virus (CPV-2), which attacks the animal’s heart muscles and can cause suffocation. There is no cure for the virus, and if left untreated both of these forms can lead to death or euthanasia.

Thankfully, avoiding parvo is relatively easy. According to the City of San Antonio’s Animal Care Services, new adopters should make a vaccination appointment with a veterinarian as soon as possible. Puppies who receive the parvo vaccine will undergo three series of injections at six, eight and 12 weeks of age, with another dose to be given between the ages 14 and 16 weeks. COSA’s Animal Care Services considers these vaccinations to be the “key” to prevent the virus.

Even the most proactive dog owners can find themselves amid a parvo emergency, but Central Texans can rest easy knowing that San Antonio Pets Alive provides a parvo ward for affected puppies to receive in-vet care. During the summer the ward will continue to house parvo-stricken pups while providing them with the best treatment Pets Alive has to offer.

For more information about parvo or how to volunteer with Pets Alive, please visit

Stay on top of San Antonio news and views. Sign up for our Weekly Headlines Newsletter.

Support Local Journalism.
Join the San Antonio Current Press Club

Local journalism is information. Information is power. And we believe everyone deserves access to accurate independent coverage of their community and state. Our readers helped us continue this coverage in 2020, and we are so grateful for the support.

Help us keep this coverage going in 2021. Whether it's a one-time acknowledgement of this article or an ongoing membership pledge, your support goes to local-based reporting from our small but mighty team.

Join the San Antonio Press Club for as little as $5 a month.