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Vaccination Against COVID-19 Reduces Infection and Death in Nursing Homes, Study Reveals

A recent study has revealed that in nursing homes, vaccinating against COVID-19 appears to rapidly reduce the rates of infection, morbidity, and mortality.

Photo: COVID-19 Vaccination in Nursing Homes | InStyleHealth

Experts surveyed 136 nursing homes that had been vaccinated earlier (from 18th December to 2nd January 2021) as opposed to 144 that had received vaccines later from 3rd January 2021 to 18th January 2021 during the pandemic.

Primary results of the study were calculated 7-day moving average of new SARS-CoV-2 infections per 100 residents at risk. In nursing homes that received vaccines earlier showed somewhat lower infection rates than those that were immunized at a later time.

Similar effect was reported for mortality and hospitalizations, through trendlines tended to be more volatile for these factors due to the lower number of occurrences. Nonetheless, 5-6 weeks after their final clinics, the early vaccination group revealed lower rates of death-hospitalization composite results compared to facilities with a later rollout.

Estimates based on model confirmed the above graph-derived trends. The model presented a statistically significant drop in incident infections as early as the first week of vaccinations in the early group, suggesting 1.6 and 2.5 fewer infections per 100 at-risk residents during the first and second weeks after immunization, correspondingly.

In the course of 5 weeks, the model predicted a cumulative reduction of 5.2 cases per 100 at-risk residents. Regarding the composite between hospitalization and/or death, the model predicted 1.1 to 3.8 fewer incidents per 100 infected residents per day, around 5-7 weeks after the final facility in the early group had rolled out the vaccination.


Source: J Am GeriatrSoc 2021
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