Parvovirus Surges as Pets Fall Sick in Record Numbers | The Animal Rescue Site

A sharp rise in parvovirus infections is putting pressure on animal hospitals as veterinarians report an unusual wave of cases hitting dogs and cats. The illness moves fast. It can be fatal without urgent care. And this season, clinics say they are seeing numbers that far exceed the norm.
At CareVet of Middletown in Ohio, Dr. Christopher Mapes described an escalation unlike anything in his recent memory. “It’s spreading so much more than we’ve ever seen it,” he told WHIO. His clinic typically handles only a handful of cases each year. As of fall 2025, they have treated nearly 20.
Parvovirus attacks the gastrointestinal system, causing vomiting, bloody diarrhea and dangerous dehydration. Without treatment, the virus can overwhelm a young or unvaccinated animal in a matter of days.
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The surge is not limited to dogs. Mapes said MedVet in Moraine is now “testing every animal that comes into the facility” because of a spike in feline cases as well, urging owners to limit contact with unfamiliar animals and wash hands frequently.
The rise comes as human parvovirus B19, a different virus that infects people only, is also experiencing an uptick. Health alerts from the CDC note rising activity across Europe and the United States, tracked through increased test positivity and antibody detection, Contagion reports.
