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Mass vaccination can protect people who have been vaccinated and may reduce the possibility of transmission to people who have not been vaccinated, thereby potentially curbing the current COVID-19 pandemic
.
The BNT162b vaccine widely used by Pfizer Biotech is not only highly effective in preventing diseases, but also has a potential population-level effect in preventing SARS-CoV-2 infection , which is essential for eradicating the disease
COVID-19 prevention infection
Recently, Nature Medicine published an article that provided community-level evidence on the protection of SARS-CoV-2 vaccines for those who had not been vaccinated
.
The study focused on the analysis of vaccination rates and test results in 177 different communities.
Natural immunization rates in these communities are low, which is inferred from the low proportion of SARS-CoV-2 infected individuals
.
The vaccination dates and test results of members of Maccabi Health Service (MHS), the second largest health maintenance organization in Israel, were retrieved from December 9, 2020 to March 9, 2021
immunity
The increase in the proportion of vaccinations in the community is related to the subsequent decrease in the number of confirmed infections in the unvaccinated cohort in the same community
.
.
The study analyzed the vaccination records and test results collected during the rapid promotion of vaccines in 177 communities in large-scale populations.
The vaccination rate in each community was related to the significant decline in the later stages of infection among people under 16 who were not vaccinated
.
On average, in a given population, for every 20 percent of people who are vaccinated, the proportion of positive tests among those who are not vaccinated will drop roughly twice
The vaccination rate in each community is related to the large decline in the late stage of infection for the unvaccinated people under 16 years of age.
The study found a strong negative correlation between the community vaccination rate and the infection risk of unvaccinated members of the community
Vaccination not only protects individuals who have been vaccinated, but also provides cross-protection to individuals who have not been vaccinated in the community
Original Source Original Source
Milman, O.
Milman, O.
, Yelin, I.
, Aharony, N.
et al.
Community-level evidence for SARS-CoV-2 vaccine protection of unvaccinated individuals.
Nat Med (2021).
https://doi.
org/10.
1038/s41591 -021-01407-5 Milman, O.
, Yelin, I.
, Aharony, N.
et al.
Nat Med leave a message here
