The recommendations are for ≥ 65 or younger with certain health conditions
PCV 20 alone or
PCV 15 followed by PPSV23
If you previously had PPSV23 you MAY get PCV15 or PCV20
There are complications for some medical conditions especially in folks who were getting PCV13 followed by repeated doses of PPSV23 explained in the link
I was glad to get PCV20 since I had the old Pneumovax (ppsv23) last year
https://www.cdc.gov/vaccines/vpd/pneumo/downloads/pneumo-vaccine-timing.pdf
Some of the online websites haven't caught up. Check with your doctor for your particular situation
PCV 20 alone or
PCV 15 followed by PPSV23
If you previously had PPSV23 you MAY get PCV15 or PCV20
There are complications for some medical conditions especially in folks who were getting PCV13 followed by repeated doses of PPSV23 explained in the link
I was glad to get PCV20 since I had the old Pneumovax (ppsv23) last year
https://www.cdc.gov/vaccines/vpd/pneumo/downloads/pneumo-vaccine-timing.pdf
Some of the online websites haven't caught up. Check with your doctor for your particular situation