I have to vaccinate my flock for fowl pox, I purchased the vaccine from Jeffers and have it ready. I was wondering if anyone has a photo that can show me where exactly to prick them under the wing and how deep do I go? I know to avoid bone, muscle, and blood vessels, but where exactly do I prick and how deep. Also, do I need to wear gloves or will I be fine if a little bit gets on me. Thanks.