Park officials say an anonymous caller told personnel that a stray dog she brought to the park has been diagnosed with the canine Parvo virus. The Ohio Department of Natural Resources says the call came in yesterday afternoon, and the four-acre dog area at Alum Creek will remain closed until further notice. The virus can be life-threatening for animals that have not been properly vaccinated including puppies that have not received all of their shots. Officials say adult dogs that have been vaccinated are at very low risk. They say it's unclear whether the dog park is involved with the spread of the virus. Park officials encourage anyone that visited the dog park within the last week to contact their own vet with any concerns.