"Bacteria, viruses and especially worms that enter the body along with 'dirt' spur the development of a healthy immune system."

Don't stop your baby from eating his germs 'n' worms!

Hot science news? George Carlin said it decades ago:

The Hudson River was loaded with raw sewage. That's right, we swam in raw sewage. You know, to cool off. And back then the big fear was polio. Thousands of kids every year were dying of polio. But you know what, in my neighborhood, nobody ever got polio. No one. Ever. You know why? BECAUSE WE SWAM IN RAW SEWAGE. It strengthened our immune system. The polio never had a chance. We were tempered in raw shit. What are you going to do when some super virus comes along that turns your vital organs into liquid shit? I'll tell you what you're gonna do. You're gonna get sick and you're gonna die and you're gonna deserve it because you're fuckin' weak and you have a fuckin' weak immune system.