For children's health, a dog may be the best prescription.

FOX News Radio's Bill Vitka reports:

Fido is not only man's best friend, he's the first line of defense against disease in babies.

A study reported by the journal 'Pediatrics' finds that infants with dogs have less fever, fewer ear infections, and the least use of antibiotics.

Children with dogs are 73% healthier. That's because in part, dogs get kids to go outside. And because dogs spend a lot of time outside they bring bacteria into the home. That exposure ramps-up a baby's immune system.

Cats extend some protection, but the link is not as strong.

Bill Vitka, FOX News Radio.