In new study published this month, a research team claims to have found evidence that a contagious virus can contribute to obesity.
The team found that a specific human adenovirus Ad-37 seems to trigger obesity in chickens. Previous studies had linked other adenoviruses -- Ad-36 and Ad-5 -- to obesity in animals.
These and other adenoviruses cause colds and other common illnesses in people. There are about 50 of them, according to the team leader, Leah D. Whigham of the University of Wisconsin. Three have now been linked to obesity, and Whigham says the others need to be studied for similar effects.
"There is quite a bit of already published data with Ad-36 and its association with obesity," she said. "If you look at obese people,
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