I read that 1 dose is 90% protective against Coronavirus, and this goes up to 95% with 2 doses. So if someone only wanted the 1 dose, is this allowed ? Reason I ask is because side effects tend to be worse on 2nd dose of Pfizer, so just having 1 jab if you want to avoid possible complications or side effects could be an option maybe, if 90% protective. I am anxious of vaccines anyway, so this would help against my chronic anxiety. Just wondered what it means as far as the doctors go ? Do they just shrug their shoulders and allow it ? Or is there some kind of rule you have to go back for 2nd shot ?