Hey mom, how clean is that Chuck E. Cheese? The answer is "not very". MomLogic.com conducted a down and dirty investigation with the help of "Dr Germ" himself, famed microbiologist Charles Gerba.

Dr. Gerba went to three locations in California and swabbed a variety of surfaces in the restaurant and arcade areas, such as play mats, trays, chairs, tables, and games. Among the discoveries from the analyses were:

--Serratia Rubidaea, a rare cause of respiratory tract infections, wound and blood infections, found on the Yellow Bus Ride in Pasadena.

--Enterobacter sakazakii, which can cause necrotizing enterocolitis, bacteremia, and infant meningitis, thriving on a table and high chair in Sun Valley.

--Klebsiella pneumoniae, which can cause urinary tract infections, wound and bloodstream infections and pneumonia, clinging to the children's play mats in Sun Valley and Burbank.

'Chuck E. Cheese' company spokesperson Brenda Holloway responded to this study.

"We clean and sanitize our games every night with an antibacterial sanitizing solution called Sterbac Blue. We try to inspect and maintain during the day as well. We have a large amount of kids who come through here, and with them, a large amount of bacteria. We try to keep up with it."

In addition, pediatrician and mother of two Dr. Cara Natterson examined Dr. Gerba's results, and reassuringly said:

"As a mom, these bacteria sound alarming and scary. But as a doctor, I haven't ever seen a serious or life-threatening infection that can be clearly traced back to a kid-friendly restaurant. So take this all with a grain of salt. Personally, I almost never take my kids to these places, so that when I do it is a major treat. And I pretty much stay away during the cold and flu season."