After recently losing my Roo to fowl pox I wanted to ask a question about vaccines. A) Recommended sites to buy? I have bought a lot from Twin City Supplies recently but mostly rely on local feedstores who are hit and miss with meds these days. B) Any particular brand? I know it is inexpensive but I have seen on google a few types. C) The meds all say for chicks 8 weeks and up online... Can I vaccinate pullets? I thought the vaccine was only given to "peeps" not older birds. Can I do my whole flock? None are over 2 yrs but many are under 6-8 months. D) I have read about plucking feathers under the wing at the arm pit area about the size of a nickel for injection site, and then to watch for the "take" spot a week later. But does anyone recommend a certain gauge needle? Or another injection site they rely on. E) Is there a standard dose given by weight or age? Sorry for all the questions but I want to do this right and protect all the rest from this horrible disease. Thank you for the help.