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Data provided by the Centers for Disease Control and Prevention (CDC) shows that unvaccinated people are four and a half times more likely to be infected with COVID-19 than fully vaccinated people, and 11 times more likely to die from COVID-19.
At the White House COVID-19 briefing on Friday, Dr. Rochelle Varensky, Director of the Centers for Disease Control and Prevention, said that the data showed that “vaccinations are effective and will protect us from the serious complications of COVID-19.”
These studies involved more than 600,000 COVID-19 cases, hospitalizations, and deaths in 13 states and large cities from April to mid-July.
“Looking at the cases where the Delta variant is the main variant in the country in the past two months, unvaccinated people are about four and a half times more likely to be infected with COVID-19, and 10% more likely to be infected with COVID-19. The probability of dying from this disease is 11 times higher in hospitalization,” Varensky said.
US President Joe Biden talks with students during his visit to Brookland Middle School to promote coronavirus protection measures in Washington, DC [Kevin Lamarque/Reuters]Although the protection is still strong, deltaThe study also confirmed that milder COVID-19 infections have increased among fully vaccinated populations, which the author said reflects “the population’s immunity caused by vaccines may be weakened”.
Two other U.S. studies also found that even in the face of highly spreading Delta variants, the COVID-19 vaccine can provide strong protection from hospitalization and death, but vaccine protection seems to be gradually diminishing in the elderly, especially at age 75 and above In the crowd.
During the period when the Delta variant was dominant, hospitalization data in nine states in the United States also showed that the Moderna vaccine was more effective in preventing hospitalization in people of all ages compared with vaccines from Pfizer or Johnson & Johnson.
In a study of more than 32,000 visits to emergency care centers, emergency rooms, and hospitals, Moderna’s vaccine was 95% effective in preventing hospitalization, compared with 80% for Pfizer and 60% for Johnson & Johnson.
Another study specifically studied the performance of mRNA vaccines (such as Pfizer and Moderna’s vaccines) in patients at five Veterans Affairs Medical Centers. This is an ethnically diverse group, mainly composed of elderly people with a higher incidence of underlying diseases. Composed of male patients.
Among the more than 1,000 COVID-19 hospitalized patients in the study, the researchers found that the combined use of the two vaccines is 86.8% effective for hospitalization, even for the Delta variant. But among veterans 65 years and older, the effectiveness of the vaccine dropped to 79.8%.
In the rapid spread of the Delta variant, millions of Americans remain unvaccinated [Nam Y Huh/AP Photo]In the third study, the medical experience in nine states was studied. The overall vaccine effectiveness is still high, with an inpatient treatment rate of 86% and an emergency room or emergency care center visit rate of 82%. However, the effectiveness of the vaccine for hospitalization was “significantly reduced” in adults 75 years and older, down to 76%-this is the first time a decline has been observed in this data set.
The data was released the day after US President Joe Biden (Joe Biden) Announce the six-step plan The fight against the pandemic includes measures such as requiring some employers to enforce vaccination or mandatory testing, providing more over-the-counter coronavirus testing at home, and expanding the government’s free testing program.
During a visit to a local school in Washington, DC, Biden said on Friday: “I don’t know that any scientist in the field thinks it doesn’t make much sense to do the six things I suggest.”
“We have to come together. I think the vast majority — look at the poll data — the vast majority of Americans know that we must do these things. They are difficult, but they are necessary. We will complete them,” he Say.
According to the CDC, there are approximately 177.4 million Americans, or 53.4% To date, 10 people in the total population of the United States have been fully vaccinated.
According to statistics, on average, more than 136,000 new cases are detected every day. CDC, exist Dramatic increase From the beginning of summer, the infection rate across the country dropped sharply. More than 1,000 people die from this disease every day.
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