According to a new report by the US Center for Disease Control and Prevention, in real-world situations, the Pfizer and Modern Kovid-19 vaccines provide highly effective protection.
During complete immunization, vaccines were 90% effective at preventing infection, including infections that had no symptoms. According to the agency’s Morbidity and Mortality Weekly Report, in a single dose published on Monday, they were 80% protective.
The study looked at how vaccines protected about 4,000 health care workers and first responders. Volunteers in the study worked at eight locations across the country and were seen from mid-December to mid-March.
The CDC regularly tested volunteers regardless of symptoms. The CDC also saw volunteers through text messages, e-mails and direct medical reports. Volunteers also swab the nose once a week.
Most volunteers, more than 62%, received either a Pfizer or modern Kovid-19 vaccine dose. More than 12% received only one dose.
Of the 2,961 people vaccinated with one or more doses and 989 unrelated participants, a total of 205 tested positive for Kovid-19, of which more than 87% of cases were symptomatic. In about 23% of cases, help was sought from the doctor. There were two hospitals, but no deaths.
The results of this study are similar to what scientists had seen in clinical trials for vaccines, but such studies are important to show how effective the vaccines are, especially in populations that, through their work, have a large number of people Can withstand is Kovid-19.
“Reducing the risk for infectious infections, which may occur several days before the onset of symptoms or among individuals with asymptomatic symptoms, particularly among health care workers, first responders, and other essential and frontline workers. Given their ability to transmit is important, frequent close contact with patients and the public, ”the report concludes.