I'm not sure? I have friends that are getting the single dose Johnson and Johnson on Saturday. I'm not sure they have received those as of today at my clinic? Honestly I am relieved to receive any of them, but would prefer the vaccines that require two shots as they have a 97% rate of not showing any symptoms if you come in contact with the virus. It is early in the data but the single dose Johnson and Johnson has a 75% rate of holding off any symptoms. So far all of them have a 100% rate of keeping people out of the hospital or dying. To it's credit, the Johnson and Johnson has far less effects immediately following it being given. It will probably be fine once they have enough data for it.