New Dementia Diagnosis Rates Lower Among Older Adults Vaccinated Against Shingles

New diagnoses of dementia were lower among adults aged 70 and older who had been vaccinated against shingles (herpes zoster) compared to those who were not. Dementia incidence was 4.3% among those eligible for the herpes zoster vaccine and 5.3% among those who were not eligible for vaccination.

The analysis included people born in Canada between January 1, 1930, and December 31, 1960, who were registered with one of 1,434 primary care providers in the Canadian Primary Care Sentinel Surveillance Network (CPCSSN) on September 15, 2016. The comparison focused on dementia diagnosis rates among people born before . . .