GAITHERSBURG, Md. (WUSA) -- 'Wash your hands" is the message at the 64th annual Montgomery County Agricultural Fair.
The fair officially opened Friday afternoon.
At the 'Old MacDonald Barn,' you'll find newborn piglets running around.
At some state and local fairgrounds, people are being told not to pet the pigs. There are no cases of the Swine Flu in Maryland so people are allowed to touch the pigs at the Montgomery County fair.
The Centers for Disease Control says pigs spread the virus just like people do with coughing, sneezing, and runny nose. People can get it just by touching them.
With any flu, you can help yourself avoid getting sick by washing your hands.
Most of the cases have been mild and no one has died. All of the infections have been spread by pigs and not humans. However, the CDC says there are signs that the strain could be transmitted by human to human contact in the future.
As of Friday, there were roughly 160 cases of the Swine Flu.
There are two veterinarians on staff through the duration of the county fair, checking the animals daily.
The fair runs through August 18th.