The company AstraZeneca showed new data on the effectiveness of its vaccine against Corona virus in the United States, in response to the request of the health authorities in the country.
The Anglo-Swedish company changed the effectiveness of its vaccine from 79 percent to 76 percent.
And other tests in the United States showed that the effectiveness rate among adults over 65 years of age increased from 80 percent to 85 percent.
AstraZeneca said it is now awaiting authorization from US health authorities.
The company added that tests have shown that the vaccine has “great effectiveness” in adults, and protects against dangerous disease by 100 percent.
The AstraZeneca vaccine test involved 32,000 volunteers in the United States, as well as in Chile and Peru.
The company announced in results published on Monday that the effectiveness of its vaccine reaches 79 percent, but the American Infectious Diseases Institute said the next day that it had learned from those responsible for health safety oversight that “the data it received about the effectiveness of the vaccine is incomplete.”
Dr. Anthony Fauci, the White House medical advisor, then alerted reporters to the possibility that the company would renew its data.
These are the latest findings from AstraZeneca regarding the efficacy of its vaccine.
After announcing the first data, the company was exposed to unusual public criticism by independent experts who monitor the tests, who said that the company may have presented “old data”, which gives “incomplete information” about the effectiveness of the vaccine.
The BBC’s medical affairs editor, Fergus Welch, says: The data renewal showed that the numbers did not change much, which raises the question of the reasons for the confusion that arose over the AstraZeneca data and why this issue was not discussed in private meetings.