Oct. 22, 2021 — Pfizer says its vaccine for kids is 90% efficient at stopping COVID-19 infections.
The Pfizer vaccine for teenagers ages 5 to 11 is 10 micrograms, roughly one-third of the dose given to adolescents and adults.
In information offered 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 information comes from a examine of greater than 2,000 children ages 5 to 11. Two-thirds of the youngsters have 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 turned dominant all over the world. As of the primary week of October, 16 members 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 line with the corporate’s evaluation of its personal research, negative effects seen within the examine have been practically all gentle. The commonest facet 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 increased charges than have been seen within the placebo group. These have been commonest after the second dose. Some pores and skin reactions have been seen within the examine, like itching and rashes, however these have been principally gentle and went away inside a couple of days.
Children additionally might have swollen lymph nodes after their vaccinations, as adults generally do, however these reactions have been non permanent.
One baby 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 revealed.
Reassuringly, no circumstances of coronary heart irritation referred to as myocarditis have been discovered within the examine. Myocarditis is uncommon and non permanent, nevertheless it requires hospital care. The best charges of myocarditis have been seen in males youthful than 30. That group has a danger of about 11 circumstances for each 100,000 doses given, in line with a latest examine within the New England Journal of Drugs.