Pfizer / Bioendech and Moderna COVID-19 vaccines have been found to be 94% effective in the real world, as opposed to hospitalization of COVID-19 among vaccinated adults 65 years of age and older in the United States. New U.S. Centers for Disease Control and Prevention Research.
The study also found that vaccines were 64% effective among the partially vaccinated elderly, i.e. only one dose had been vaccinated so far.
These findings are consistent with the clinical trial results of vaccines, which have shown efficiencies of about 94% to 95%, according to researchers at CDC and several other organizations.
“Continued vaccination of American adults against COVID-19 may have a significant impact on continued hospitalization for COVID-19 and lead to a reduction in post-COVID conditions and mortality,” the researchers wrote in their study.
The study included information on 417 adults aged 65 and over with symptoms such as COVID-19 admitted in 24 hospitals in 14 states from January 1 to March 26. Of those patients, 187 tested positive for the corona virus that causes COVID-19. 230 test negative.
Of those who tested positive, the researchers found that most were not confirmed. Only 18%, or 10% of patients, were partially vaccinated with the first dose of Pfizer or Modern vaccine and one person – representing 0.5% – was fully vaccinated.
Of the 230 adults tested negative, 44 reported that 19, or 19% were partially vaccinated, and 18, or 8% were fully vaccinated.
Overall, “these findings are encouraging and welcome news for two-thirds of people 65 years of age and older who have already been vaccinated,” said the CDC Director. Dr. Rochelle Valensky said in a news release On Wednesday.
“The COVID-19 vaccine is very effective, and these real-world findings confirm the benefits found in clinical trials and prevent hospitalization in the most vulnerable,” Valensky said. “The results are promising for our communities and hospitals. As our vaccination efforts continue to expand, COVID-19 patients will not be drowning in health care systems – leaving hospital staff, beds and other available medical services available to those in need.”
The new study includes data from California, Colorado, Maryland, Massachusetts, Michigan, Minnesota, New York, North Carolina, Ohio, Oregon, Pennsylvania, Tennessee, Texas and Utah. Further research is needed to determine whether similar findings will emerge in more states to represent the entire American population.
Similar findings have been made before.
A Separate study, Released last week New England Journal of Medicine, 417 staff at Rockefeller University in New York were found to be fully vaccinated with Pfizer or Modern shots, only two of them – approximately 0.5% – later tested positive for COVID-19.
In March, pharmaceutical companies Pfizer and Bioendech announced it Real world evidence from the Israeli Ministry of Health Show that there are “dramatically” fewer COVID-19 cases and deaths among fully vaccinated people in Israel. The analysis found that the vaccine was 94% effective in preventing asymptomatic COVID-19, where infections showed no symptoms.