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Pet-Store Puppies Linked To Campylobacter Outbreak In People

Campylobacter infections are common in dogs, cats and people.

We don't usually think of adorable puppies as disease vectors, but they might actually be making people sick. The Centers for Disease Control and Prevention is investigating a Campylobacter outbreak in people and its link to puppies purchased from a chain of pet stores.

According to the CDC, at least 39 people across seven states have confirmed or suspected cases of Campylobacter bacteria, which can cause diarrhea, abdominal pain and fever. While the investigation is ongoing, federal officials have linked it to contact with puppies sold by Petland, a chain of pet stores based in Ohio.

Twelve of the confirmed cases are in Petland employees, and 27 other people who fell ill either visited a Petland, recently purchased a puppy there, or visited or live in a home with a Petland puppy. According to the CDC's announcement, nine people have been hospitalized and there are no reported deaths.

Petland is cooperating with officials in the investigation. In a statement, the company writes, "The CDC has not identified any failures of Petland's operating system that would lead to any Campylobacter infection." The company says that accordance with the CDC's advice, they will continue their efforts to encourage handwashing after contact with puppies.

While the exact cause of this outbreak is not known, there are a few possible reasons the puppies could be sick. Shelley Rankin, an associate professor of microbiology at the University of Pennsylvania's School of Veterinary Medicine, says that the biggest risk factor is that they're puppies. Like small children, puppies don't have a strong immune system and can more easily get sick. Rankin says that she's seen many outbreak investigations, and it can be difficult to pin down the exact cause.

Campylobacter can infect dogs, cats and humans, but most commonly the bacteria are spread through eating raw or undercooked meat. About 47 percent of raw chicken samples tested in 2011 were positive for Campylobacter, according to the CDC.

Humans don't typically spread the bacteria to each other, but it is possible to be exposed through dog feces. In a typical case, symptoms last for about a week.

Amesh Adalja, a senior associate at the Johns Hopkins Center for Health Security and a member of the Infectious Diseases Society of America Public Health Committee, says that the bacteria are one of the most common causes of gastroenteritis, or stomach flu.

For every 100,000 people, 14 cases of Campylobacter infection are diagnosed each year. The CDC estimates that annually, Campylobacter impacts 1.3 million people. The good news is that most people get well on their own. The CDC says people typically need antibiotics only if they're immune compromised or at high risk of complications.

To minimize risk of illness, the CDC suggests washing your hands after touching your dog. Though for any dog lover, washing your hands every time you pet them seems unrealistic.

The CDC also recommends quickly disposing of dog poop using disposable gloves, as well as regular visits to the veterinarian to keep your dog healthy.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

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