Local veterinarian warning about illness caused by bacteria found in dog waste

MILWAUKEE (CBS 58) -- The CDC is working to contain an outbreak of dogs transferring a bacteria to humans.

A local vet says open petting areas at stores don't pose the only risk.

"People don't realize dogs go to the bathroom at the dog park," explained Dr. Lindsey Foster of the Milwaukee Emergency Center for Animals.  "Dogs run through it. You touch your dogs paws and there you go."

Camplybachter is the name of the bacteria.

Dogs don't always show symptoms but can still spread the germ to their owners who then suffer extreme intestinal distress.

So far, 30 people have been sickened in the outbreak which includes Wisconsin. Nine people have been hospitalized. 

To see our original reporting last week on the outbreak click here

Please see below for our full interview with Dr. Foster.

Dog to Human Bacteria Extended Interview from CBS 58 News on Vimeo.

The CDC initially said the bacteria was linked to puppies sold at Petland, however the CDC expanded their investigation to cover multiple sources. Petland released the following statement on Tuesday: