The analysis found that unvaccinated people were 2.34 times more likely to be reinfected than fully vaccinated people.
Unvaccinated people are more than twice as likely to be reinfected by Covid-19 than those fully vaccinated, according to a study by the Centers for Disease Control and Prevention. According to the CDC, the findings support the recommendation that all eligible people should be offered vaccination against Covid-19, regardless of previous SARS CoV-2 infection. These data also indicate that Covid-19 vaccines offer better protection than natural immunity alone and that vaccines, even after a previous infection, help prevent reinfection.
I study
The new study was based on 246 Kentucky adults who were reinfected in May and June of this year after being previously infected in 2020. The volunteers were compared to a control group of 492 people who tested positive but had been vaccinated. . The analysis found that unvaccinated people were 2.34 times more likely to be reinfected than people fully vaccinated with Pfizer, Moderna, or Johnson & Johnson vaccines (in use in the United States).
The duration of immunity
The duration of immunity acquired by the infection remains poorly understood and could be affected by the emergence of new variants, the paper says. For example, laboratory studies have shown that blood samples from people previously infected with the original Wuhan strain had poor antibody responses to the Beta variant first identified in South Africa. One of the limitations of the study that was conducted before Delta became the dominant strain in the United States.
August 16, 2021 (change August 16, 2021 | 17:15)
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