Does a lack of vaccine side effects correlate with reduced BNT162b2 mRNA vaccine response among healthcare workers and nursing home residents?
Aging Clin Exp Res
; 33(11): 3151-3160, 2021 Nov.
Artigo
em Inglês
| MEDLINE | ID: covidwho-1525638
ABSTRACT
BACKGROUND:
The BNT162b2 SARS-CoV-2 mRNA vaccination has mitigated the burden of COVID-19 among residents of long-term care facilities considerably, despite being excluded from the vaccine trials. Data on reactogenicity (vaccine side effects) in this population are limited.AIMS:
To assess reactogenicity among nursing home (NH) residents. To provide a plausible proxy for predicting vaccine response among this population.METHODS:
We enrolled and sampled NH residents and community-dwelling healthcare workers who received the BNT162b2 mRNA vaccine, to assess local or systemic reactogenicity and antibody levels (immunogenicity).RESULTS:
NH residents reported reactions at a much lower frequency and lesser severity than the community-dwelling healthcare workers. These reactions were mild and transient with all subjects experiencing more local than systemic reactions. Based on our reactogenicity and immunogenicity data, we developed a linear regression model predicting log-transformed anti-spike, anti-receptor-binding domain (RBD), and neutralizing titers, with a dichotomous variable indicating the presence or absence of reported reactions which revealed a statistically significant effect, with estimated shifts in log-transformed titers ranging from 0.32 to 0.37 (all p < 0.01) indicating greater immunogenicity in subjects with one or more reported reactions of varying severity.DISCUSSION:
With a significantly lower incidence of post-vaccination reactions among NH residents as reported in this study, the BNT162b2 mRNA vaccine appears to be well-tolerated among this vulnerable population. If validated in larger populations, absence of reactogenicity could help guide clinicians in prioritizing vaccine boosters.CONCLUSIONS:
Reactogenicity is significantly mild among nursing home residents and overall, subjects who reported post-vaccination reactions developed higher antibody titers.Palavras-chave
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
MEDLINE
Assunto principal:
Vacinas
/
COVID-19
Tipo de estudo:
Estudo experimental
/
Estudo observacional
/
Estudo prognóstico
/
Pesquisa qualitativa
Tópicos:
Vacinas
Limite:
Humanos
Idioma:
Inglês
Revista:
Aging Clin Exp Res
Assunto da revista:
Geriatria
Ano de publicação:
2021
Tipo de documento:
Artigo
País de afiliação:
S40520-021-01987-9
Similares
MEDLINE
...
LILACS
LIS