Pfizer COVID vaccine provides less protection for kids aged 5-11, finds US study - News9 Live

Source: News9live.com

Pfizer and BioNTech's two-dose COVID vaccine provided very little protection for children aged 5 to 11 during the Omicron wave in New York, according to a study published Monday. The New York State Department of Health found that the effectiveness of Pfizer's vaccine against COVID infection plummeted from 68 per cent to 12 per cent for kids in that age group during the omicron surge from December 13, 2021 through January 24, 2022. Protection against hospitalisation dropped from 100 per cent to 48 per cent during the same period. The study has not yet undergone peer review, the academic gold standard.

Due to the public health urgency of the pandemic, scientists have been publishing the results of their studies before such a review.The team of public health officials who conducted the study said the dramatic drop in vaccine effectiveness among children 5 to 11 years old was likely due to the lower dosage they received. Kids in this age group are given two 10-microgram shots, while children aged 12 to 17 receive 30-microgram shots. The researchers also compared 11 and 12-year-olds during the weekend ended January 30.
They found the vaccine effectiveness plunged to 11 per cent for the low-dosage group but offered 67 per cent protection to the group that received the higher dose. "Given the rapid loss of protection against infections, these results highlight the continued importance of layered protections, including mask-wearing, for children to prevent infection and transmission," the public health officials wrote in the study.For children aged 12 to 17 years old, vaccine effectiveness against infection dropped from 66 per cent to 51 per cent from December through the end of January. Protection against hospitalization dropped from 85 per cent to 73 per cent for teenagers during the same period. The data comes as New York City plans to end its school mask mandate by March 7, with California doing the same four days later.
State governments are easing mandates and restrictions as COVID infections decline dramatically after the omicron variant swept the nation in December and January.COVID infections are down 91 per cent from a pandemic high in January. The US reported a daily average of nearly 66,000 new infections on Sunday, compared to the more than 802,000 on Jan. 15, according to a CNBC analysis of data from Johns Hopkins University. The US suffered a spike in hospitalisations of children with COVIO during the omicron wave.
The Food and Drug Administration sought to fast track Pfizer's vaccine for kids aged six months through 4 years old this month in response to the number of children hospitalized with COVID.However, the FDA and Pfizer decided to put those plans on hold after data on the first two doses did not meet expectations. The FDA is now waiting to see clinical trial data on a third dose for the youngest kids, which is expected in April.