Farms Shield Kids From Bowel Disease

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In contrast, children who had spent regular amounts of time visiting or living on farms during their first year of life were 50 percent less likely to develop Crohn's as they got older and 60 percent less prone to ulcerative colitis, compared to youngsters who had not had that experience.

Early exposure to cattle, especially, appeared to help keep the diseases at bay, cutting the odds of Crohn's by 60 percent and colitis by 70 percent, the study authors said.

Cattle appeared to have a more potent effect on IBD risk than exposure to household pets, the study found. Household cat and dog exposure has been the focus of much study and debate among allergists and immunologists.

In this study, regular exposure in infancy to cats reduced Crohn's risk by just 20 percent, a statistic the researchers described as only of "borderline significance." Cat exposure was somewhat more useful against colitis, with rates dropping by 50 percent compared to unexposed children.

The cat-cattle discrepancy didn't come as a big surprise to Rosh.

"It seems that it's not so much animals, per se, as it is which animals," he said. "So, the domesticated cat that stays in the corner cleaning himself all day may not be 'dirty enough' to save you."

Radon agreed. "It has also been shown for allergies that farm animal contact is more efficient [in reducing risk] than pet contact. Therefore, it is not surprising that we see the same for inflammatory bowel disease," she said. "The reason might be that the level of exposure to bacteria and fungi in the farm environment is much higher than if you have a cat or dog at home."

Rosh has his own theories as to where the protective element might lie. "They sanitize it in the article, but they do say it can't be a clean animal -- it's got to be livestock. It's got to be something in that environment, and I would say, it's not in the air so much, as in the poop," he said.

So, does all this mean that modern-day babies need to get "back to the land"?

Perhaps not, according to the experts.