Because of the recent Swine Flu outbreak, the Henrico County Health Department is urging race fans to take precautions this weekend.
"There is no reason for fans not to attend and enjoy the events this weekend," said Acting Health Director Dr. Robert Stroube.
"However, as with any large public event, there is a risk of spreading viruses, but there are very simple yet effective precautions you can take to avoid exposure."
Officials say people who are sick, have a fever, or are experiencing flu-like symptoms should stay away from work, school and other public areas.
People should also wash their hands frequently and cover mouths when coughing or sneezing.
There are currently no confirmed cases of Swine Flu reported in Virginia.
Stay with 8News for the latest on the outbreak.
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