Hi, Do you have to worm chickens? Are there products you can buy at a farm store for that? And if you do, do people consider that not natural, like if someone wants to buy chickens that are natural farm raised, do they frown on wormers being used? And what about vaccinations, I read about 2 on a hatchery site that could be given, didn't know if it was needed or reccomended? Thanks in advance for any suggestions, we're new and trying to get the 411.