Evaluating immunity to SARS-CoV-2 in nursing home residents using saliva IgG.
Morgan Jane KatzChristopher D HeaneyNora PisanicLeigh SmithBenjamin F BigelowFatima SheikhAlec BoudreauKate KruczynskiYea-Jen HsuAlejandra B SalinasSara E CosgroveClare RockPublished in: Journal of the American Geriatrics Society (2022)
Positive SARS-COV-2 IgG in saliva was concordant with prior infection (Anti N, S, RBD) and vaccination (Anti S, RBD) and remained above positivity threshold for up to 9 months from infection. Salivary sampling is a non-invasive method of tracking immunity and differentiating between prior infection and vaccination to inform the need for boosters in LTC residents and staff.