Oct. 22, 2021 — Pfizer says its vaccine for kids is 90% efficient at stopping COVID-19 infections.
The Pfizer vaccine for youths ages 5 to 11 is 10 micrograms, roughly one-third of the dose given to adolescents and adults.
In knowledge introduced to the FDA forward of the company’s assessment of its photographs for kids, the corporate described the interim outcomes of two ongoing research testing the protection and effectiveness of its 10-microgram photographs.
The vaccine effectiveness knowledge comes from a examine of greater than 2,000 youngsters ages 5 to 11. Two-thirds of the youngsters had been randomly assigned to obtain a child-sized dose of the Pfizer-BioNTech vaccine, whereas the opposite third was sorted into the placebo group.
The examine received underway because the Delta variant grew to become dominant all over the world. As of the primary week of October, 16 individuals within the placebo group had gotten a symptomatic, lab-confirmed COVID-19 an infection, in contrast with simply three who caught COVID within the vaccinated group.
In accordance with the corporate’s evaluation of its personal research, unwanted side effects seen within the examine had been almost all gentle. The commonest aspect impact reported was ache on the website of the shot. Children within the group that obtained the vaccine additionally had fatigue, complications, fever, and chills at larger charges than had been seen within the placebo group. These had been most typical after the second dose. Some pores and skin reactions had been seen within the examine, like itching and rashes, however these had been principally gentle and went away inside a couple of days.
Children additionally may have swollen lymph nodes after their vaccinations, as adults typically do, however these reactions had been short-term.
One youngster developed a tic, a recurring involuntary muscle twitch or vocal sound, that got here one week after their second dose of the vaccine. It was judged by examine investigators to be associated to the vaccine. The corporate says it was going away by the point the examine was being printed.
Reassuringly, no instances of coronary heart irritation known as myocarditis had been discovered within the examine. Myocarditis is uncommon and short-term, but it surely requires hospital care. The very best charges of myocarditis have been seen in males youthful than 30. That group has a threat of about 11 instances for each 100,000 doses given, in response to a current examine within the New England Journal of Medication.