My wife got her shot on Saturday and mine was the next day. She had a bit of sore arm for 2 days but only noticeable when pressure was applied. It is now okay. I had no problems at all except a bit of a twinge if I lay on that arm. Our ages are 83 and 84.
We are booked to get our second shots in July (4 months). Don't know how much protection we will have until after the second shot.
Jim
