The short version
Recent news reports from Wisconsin about a rare infection spread by cats and dogs have caused concern among pet owners. Capnocytophaga, as hard to treat as it is to pronounce, is a common bacteria found in our pets. While harmless to cats and dogs, it can cause serious health problems in humans. So, should we be worried about it?
What Is Capnocytophaga?
Many species of capnocytophaga inhabit the mouths of cats and dogs and also live in the mouths of some humans. These bacteria don't bother our pets, and they rarely infect humans. Experts compare the odds of contracting these bacteria from your pet to getting struck by lightning. Extremely rare, but potentially deadly when it occurs.
Unlike lightning, however, capnocytophaga does discriminate. Healthy people can get the bacteria, but individuals who have difficulty fighting off infections are at an increased risk, especially if they are bitten by a dog.
According to the Centers for Disease Control and Prevention (CDC), symptoms of capnocytophaga in humans include:
Should You Worry About Capnocytophaga?
Despite the dire mortality rate, capnocytophaga is extremely rare. It also isn't new. These bacteria have been around for a long time, and while recent cases may have drawn attention to it, that doesn't mean you need to panic.
The best thing you can do to avoid infections of any type, including capnocytophaga, is to always contact your doctor if you've been bitten by a cat or dog. This is especially important for people with compromised immune systems, but even healthy people can experience dangerous infections. In the meantime, check out AKC's tips for preventing dog bites.
This article is intended solely as general guidance, and does not constitute health or other professional advice. Individual situations and applicable laws vary by jurisdiction, and you are encouraged to obtain appropriate advice from qualified professionals in the applicable jurisdictions. We make no representations or warranties concerning any course of action taken by any person following or otherwise using the information offered or provided in this article, including any such information associated with and provided in connection with third-party products, and we will not be liable for any direct, indirect, consequential, special, exemplary or other damages that may result, including but not limited to economic loss, injury, illness or death.
Frequently asked questions
Capnocytophaga dog bacteria?
The AKC covers this in the article linked on this page. Recent news reports from Wisconsin about a rare infection spread by cats and dogs have caused concern among pet owners. Capnocytophaga, as hard to tr… If your dog is unwell, contact your veterinarian — this page is educational, not a diagnosis.
Deadly bacteria from dog saliva?
The AKC covers this in the article linked on this page. Recent news reports from Wisconsin about a rare infection spread by cats and dogs have caused concern among pet owners. Capnocytophaga, as hard to tr… If your dog is unwell, contact your veterinarian — this page is educational, not a diagnosis.
How do dogs get capnocytophaga?
The AKC covers this in the article linked on this page. Recent news reports from Wisconsin about a rare infection spread by cats and dogs have caused concern among pet owners. Capnocytophaga, as hard to tr… If your dog is unwell, contact your veterinarian — this page is educational, not a diagnosis.