According to Kotaku, PAX officials have confirmed a case of the H1N1 flu virus (more commonly known as "Swine Flu") at PAX. Due to the size of the event and the sheer nature of shoulder to shoulder walking traffic at conventions, it's entirely possible that this years Penny Arcade Expo was in fact a breeding ground for the virus.

Moments ago, Penny Arcade's Robert Khoo advise anyone who attended PAX that now has a confirmed case of Swine Flu to email him with your flight information. It's important to understand that while we refuse to jump on the "Swine Flu will turn us into Zombies" bandwagon, this can be a serious ailment for some and it's our responsibility to get the information out there. If you were at PAX over the weekend and have any symptoms, which include fever, cough, sore throat, runny or stuffy nose, body aches, headache, chills and fatigue -- please seek medical advice/attention immediately.

Update (9/08/09 @ 19:45): We've just been getting reports all day about #paxflu sicknesses but we've just received notification that Matt Lefferts of Runic Games has tested positive for the virus. According to our source at Runic, the infected employee feels worse than he ever has before and started feeling sick on Sunday.