How many years is the Shingrix shingles vaccine effective if given in 2018 and what is the percentage of effectiveness!?

Hello Ms,According to published data on the subject (https://www-cdc-gov.acces.bibl.ulaval.ca/vaccines/acip/meetings/downloads/slides-2017-02/zoster-02-gsk.pdf, https://www-cdc-gov.acces.bibl.ulaval.ca/vaccines/acip/meetings/downloads/min-archive/min-2017-02.pdf, https://www-cdc-gov.acces.bibl.ulaval.ca/vaccines/acip/meetings/downloads/slides-2017-06/zoster-05-dooling.pdf), here is the answer to your questions:

Shingrix still provides an efficacy of more than 90% four years after the injection. When analyses of the cells of the person who received Shingrix are performed, it was found that this efficacy could go up to 9 years.

Time will tell. For now, studies are underway to validate whether a revaccination is necessary or helpful. In the meantime, make sure you have received your two injections.

Have a nice day,Alexandre Chagnon, pharmacist