Pfizer Covid vaccine much less efficient in children 5 to 11: Study

New York, March 1 (IANS): Pfizer’s Covid vaccine for kids aged 5 to 11 has proved to be considerably much less efficient than in older adolescents or adults towards the infectious virus, in accordance with a examine.

The but to be peer-reviewed examine, led by The New York State Division of Well being, discovered that in the course of the Omicron period, the effectiveness of the Pfizer-BioNTech Covid vaccine declined quickly — from 68 per cent to 12 per cent for kids aged 5-11 years.

Vaccine efficacy additionally declined from 66 per cent to 51 per cent for these between 12 and 17 years.

Though vaccination was discovered protecting towards extreme illness the efficacy towards hospitalisation additionally declined from 85 per cent to 73 per cent for kids aged between 12 and 17 years, and from 100 per cent to 48 per cent for these aged between 5 and 11 years.

The distinction in effectiveness could also be defined by “lower vaccine dose”, mentioned the researchers.

In comparison with youngsters 12-17 years, who acquired two 30g doses,youngsters 5-11 years, acquired two 10g doses.

The examine examined Pfizer vaccine effectiveness from December 13, 2021 to January 30, 2022, amongst 852,384 fully-vaccinated youngsters 12-17 years and 365,502 youngsters 5-11 years.

Amongst youngsters 12-17, safety declined considerably, albeit extra slowly than noticed amongst youthful youngsters.

Inside simply two weeks of full vaccination the efficacy for kids aged 5-11 dropped to 65 per cent and by 28-34 days it was 12 per cent

For kids between 12-17 years, effectiveness declined from 76 per cent to 56 per cent by 28-34 days.

“Our data support vaccine protection against severe disease among children 5-11 years, but suggest rapid loss of protection against infection, in the Omicron variant era,” mentioned Eli S. Rosenberg, from College at Albany College of Public Well being, State College of New York, within the paper.

“These results highlight the potential need to study alternative vaccine dosing for children and the continued importance of layered protections, including mask wearing, to prevent infection and transmission,” she added.

The examine comes as a number of states and the US Facilities for Illness Management and Prevention have eased the masks restrictions.


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