article_snippet.sent: In fact, according to medical experts, festival-goers actually run the risk of picking up illnesses like the flu, Norovirus, Salmonella, and even hepatitis A. Sick concert: Festival-goers who attend outdoor concerts like Coachella are at risk to contract diseases like influenza and Norovirus .
article_snippet.sent: Outdoor music festivals and concerts where thousands of people are clustered together in close quarters can be a breeding ground for infections and other health problems,' Dr. Kevin Campbell tells DailyMail.com.
article_snippet.sent: Dr. Kevin Campbell advises that festival attendees should take steps to avoid catching diseases like Norovirus and Salmonella, which can cause gastrointestinal distress, as well as conditions like hepatitis A, influenza, and Shigellosis.
article_snippet.sent: Even stars like Justin Bieber and Kendall Jenner, pictured here at Coachella, are not immune from the risk of contracting hepatitis A and Shigellosis .
article_snippet.sent: But bacteria and viruses aren't the only things at outdoor concerts that can lead to illness. '
highlights_snippet.sent: Large crowds, close quarters and heavily-trafficked public restrooms allow for illnesses to spread .
  
highlights_snippet.sent: Attendees are at risk of catching anything from Norovirus to flu .
  