NY health officials found that the effectiveness of Pfizer's vaccine against Covid plummeted from 68% to 12% for children ages 5 to 11 as the omicron surged.
The New York State Department of Health found that the effectiveness of Pfizer's vaccine against Covid infection plummeted from 68% to 12% for children ages 5 to 11 as the omicron variant surged.
The New York State Department of Health found that the effectiveness of Pfizer's vaccine against Covid infection plummeted from 68% to 12% for children ages 5 to 11 as the omicron variant surged from Dec. 13 through Jan 24. Protection against hospitalization in this age group dropped from 100% to 48% during the same period., the academic gold standard. Scientists have been publishing the results of their studies before review due to the urgency of the pandemic.
The researchers compared 11- and 12-year-olds, who receive different dosage levels but have similar physiology given that they're nearly the same age. The effectiveness of the vaccine against infection for 11-year-olds dropped to 11%, while the two higher dose shots gave 12-year-olds 67% protection during the week ending Jan. 30.
For children ages 12- to 17-years-old, vaccine effectiveness against infection dropped from 66% to 51% from December through the end of January. Protection against hospitalization dropped from 85% to 73% for teenagers during the same period.
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