![]() After partial vaccination, participants’ risk of infection was reduced by 81 percent. Once fully vaccinated, participants’ risk of infection was reduced by 91 percent. To evaluate vaccine benefits, the study investigators accounted for the circulation of SARS-CoV-2 viruses in the area and how consistently participants used personal protective equipment (PPE) at work and in the community. Participants were followed over time and the data were analyzed according to vaccination status. If the tests came back positive, the specimens were further tested to determine the amount of detectable virus in the nose (i.e., viral load) and the number of days that participants tested positive (i.e., viral shedding). Participants self-collected nasal swabs that were laboratory tested for SARS-CoV-2, which is the virus that causes COVID-19. In the new analysis, 3,975 participants completed weekly SARS-CoV-2 testing for 17 consecutive weeks (from Decemto April 10, 2021) in eight U.S. Preliminary results from this study were first announced in March 2021. These groups are more likely to be exposed to the virus that causes COVID-19 because of their occupations. The findings come from four weeks of additional data collected in CDC’s HEROES-RECOVER study of health care workers, first responders, frontline workers, and other essential workers. These benefits are another important reason to get vaccinated.” ![]() “Findings from the extended timeframe of this study add to accumulating evidence that mRNA COVID-19 vaccines are effective and should prevent most infections - but that fully vaccinated people who still get COVID-19 are likely to have milder, shorter illness and appear to be less likely to spread the virus to others. “COVID-19 vaccines are a critical tool in overcoming this pandemic,” said CDC Director Rochelle P. Importantly, this study also is among the first to show that mRNA vaccination benefits people who get COVID-19 despite being fully vaccinated (14 or more days after dose 2) or partially vaccinated (14 or more days after dose 1 to 13 days after dose 2). This adds to the growing body of real-world evidence of their effectiveness. A new CDC study finds the mRNA COVID-19 vaccines authorized by the Food and Drug Administration (Pfizer-BioNTech and Moderna) reduce the risk of infection by 91 percent for fully vaccinated people.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |