Per webinar just attended:
90-97% effective for at least 4 yrs. (may need a booster but is more efficacious than Zostavax)
Approved > 50yrs. Old
Not yet approved for immunocompromised (so not for those on immunosuppressing DMTs)
Yes, give if you've had shingles or you've had the prior shingles vaccine (Zostavax )
2 shots and 17% experience shot site pain and General achiiness X up to 2 days
Will post more if I remember...