The British newspaper “Daily Mail” revealed that the company Johnson & Johnson Requested by the US Food and Drug Administration (FDA) approval of its own booster dose of its vaccine, and additional doses could be released as soon as next week.
Corona vaccine from Johnson
The newspaper said, I asked a company Johnson & Johnson From the US Food and Drug Administration (FDA) On Tuesday, a booster dose of the Corona vaccine was approved this week, after a meeting to discuss Johnson’s boosters was scheduled for October 15.
Last month, Johnson’s company published data showing the effectiveness of the second dose of the Corona vaccine, which was given two months after the first dose, of up to 94%. In comparison, the standard single-dose regimen is 70% effective against symptomatic disease.
Johnson’s vaccine booster dose
Johnson also said that giving a booster dose two months after the first dose increased antibody levels between 4-fold and 6-fold.
And the newspaper pointed out that last month, the US Food and Drug Administration allowed booster doses of the Pfizer vaccine to older Americans and other groups with weak immunity, adding that this is part of a major effort by the Biden administration to enhance protection amid variable delta and the possibility of diminishing immunity to the vaccine. Johnson previously indicated that its vaccine remains highly effective against corona after at least 5 months of vaccination, which indicates an 81% effectiveness against hospitalization in the United States, but the company’s research shows that a booster dose after 2 or 6 months led to an increase in immunity. more.
The newspaper pointed out that the third phase in the trial of the two doses reaches 30,000 participants, as it looks at the effectiveness of a second dose given 56 days after the first dose in adults 18 years or older..
Results published last month showed that a booster dose was 94% effective against symptoms of corona in the United States and 100% effective against serious diseases at least 14 days after vaccination..
This compares to the 70% of protection observed with a single dose, as there was only one case of corona in the vaccine group and 14 in the placebo group..
Johnson said, the booster dose comes two months after the first dose, antibody levels increased between 4 and 6 times, explaining that when it was given after 6 months after the first dose, antibody levels rose 9 times after one week, and 12 times after 4 weeks, as it was observed These increases regardless of age.
The two-dose side effects were similar to those seen in studies with the single-dose vaccine. Next Friday, FDA advisors will review studies from the company and other researchers and vote on whether to recommend the use of boosters, the newspaper added..
