(WHAS11) -- Fair-goers, beware. With fair season comes the possible threat of exposure to the swine flu infection.
The outbreaks following the Grant County Agricultural Fair have Indiana health officials keeping a special watch out for any more signs of illness.
Four people became infected with the H3N2V influenza after visiting the fair in Grant County. Two of the people had come into contact with pigs, 13 of which tested positive for the sickness.
According to the Indiana Health Department, 138 cases of this strain of swine flu were reported in the state last year.
Overall, human infection is rare, but it is much more common after being around live pigs carrying the disease.
Indiana's Health Commissioner encourages anyone who goes to the fair to wash their hands frequently and thoroughly.
People should also avoid taking food or eating food near the area where pigs are kept.