And animal shelters in the area. >> A lot of nervous pet owners out there. One San Pablo woman says her service dog died and she thinks this mystery illness is to blame. KTVU is crystal Bailey shares her story and warns pet owners to be aware. >> She went everywhere with me. >> Tina Marie silva says one of her service dogs, a 12 year old Chihuahua named cookie monster, started acting strange earlier this week. >> She was sneezing a lot, so she would wake up and it was cutest sneeze like. >> Silva says the symptoms got worse, and within a couple of days she passed away with her eyes wide open. She thinks it was the mysterious respiratory illness affecting dogs. But vets are having a hard time confirming cases. It's really tough because there's not a hallmark or sign that says it's this one. >> We've really got to figure it out with the case. Individual >> The Milo Foundation shared it was forced to close their adoption center in Richmond due to an outbreak of respiratory illness in their animals. A worker there tells me they're not sure whether it was the mystery illness or something else. >> Knock on wood, we're pretty lucky right this moment that we don't have it here. >> Just a few miles away, a rescue shelter called Jelly's Place says there having to take precautions. Each time they get a new pet to avoid a spread. >> We will quarantine it for about 10 to 14 days to make sure that they don't have any symptoms of anything. And while vets in Contra Costa County say there have been no confirmed cases, they suspect it's out there right now. >> We have to treat them all like it could be and we work them up diligently and see how they respond to treatment. Now Silva is worried her second dog, Tahoe, also has it. >> This breathing like this is not normally Tahoe. She warns others to keep an eye on their dogs. >> If they start developing symptoms. >> Don't overlook it. >> Watch your dog closely. And if they show any signs like coughing, nasal discharge, changes in breathing pattern, or sometimes even broad things like lack of appetite, energy levels, well follow up with your vet immediately to get them checked out. >> Now, although there is no official vaccine for this respiratory illness, officials say that you should still keep your dog healthy and fully vaccinated. And shelters like Jelly's Place here in San Pablo do offer those
