Just ponder this, which fowl creature is better prepared to battle new strange diseases:

• The seed and occasional worm-fed scared little chicken wandering around outside unprotected from the elements where at any time stray flu germs can attack his already battered immune system.
• Or, the strong indoors protected super chicken with his defenses bolstered with antibiotics, steroids, and don't forget all the nutrients he gets in protein form from eating those yummy meat by-products and fish meal.

And, with any luck the antibiotics our relaxed indoor chickens eat end up in our systems to boost our daily pill regimen and further protect us against the evil flu.