Heather McLean, a pediatrician at Duke, told WRAL that Winston was experiencing mild symptoms.
"Pugs are a little unusual in that they cough and sneeze in a very strange way," McLean told WRAL. "So it almost seems like he was gagging, and there was one day when he didn't want to eat his breakfast, and if you know pugs you know they love to eat, so that seemed very unusual."
“(The dog) licks all of our dinner plates and sleeps in my mom’s bed, and we’re the ones who put our faces into his face," McLean’s son, Ben McLean, told the television station. “So, it makes sense that he got (coronavirus).”
The McLeans have four pets: two dogs, a cat and a lizard. The lizard was not tested, CBS News reported.
The family participated in the Molecular and Epidemiological Study of Suspected Infection (MESSI) research study April 1, WRAL reported.
“They all came out to our house and did blood samples," Heather McLean told the television station. "For the humans, they swabbed our noses as well as our mouths, and for the animals they did oral swabs for both dogs and the cat.”
Heather McLean's daughter, Sydney, was the only family member not to test positive, WRAL reported. Samuel McLean, the family's father, works in the emergency room at UNC Hospitals.
Family members said Winston appears to be recovering after being sick for a few days.
"Hopefully we'll learn more through the research study, and I think because there's not a lot of studies and sampling pets, we just don't know yet," Heather McLean told WRAL. "My advice is just not to get too worried about it."
Ben McLean agreed.
"There may be more animals that have coronavirus, there just isn't any testing," he told CBS News. "Obviously those tests should be going to people rather than pets, but because we were part of a research study, we found out about Winston.
”However, people should not worry about their pets getting sick and dying from this disease. There remains little evidence that it is very harmful to them.”