03-03-2023, 06:41 AM
Harbourmaster wrote:
The latest research seems to imply that the vaccine loses its effectiveness over time (imagine that).
I know 3 people that have had the shingles after having been previously vaccinated.
There was an older vaccine that was discontinued about a year and a half ago. It was a single shot, and research showed it prevented a bit over half the cases of shingles and lessened the symptoms for many who did get it. So many older persons may have received that when it was available.
Shingrix was approved about half a dozen years ago. Two shots and the length of protection is not entirely clear yet, but at least 6-7 years. It has been shown to prevent more cases of shingles, and the current recommendation is that people who got the older vaccine should get revaccinated with Shingrix.