Pfizer Vaccine Effectiveness in Children


The Reuters News reports citing a recently posted study (not peer reviewed) that though the Pfizer/BioNTech vaccine protected severe Omicron cases in children aged 5 to 11, however its lost its effect quickly and failed to protect further infection.

The study, conducted by the researchers from the New York State Department of Health, reportedly found that “the vaccine proved to provide strong protection against becoming seriously ill. The preprint study looked at data collected from more than 1.2 million fully vaccinated children and adolescents between the ages of 5 and 17 from Dec. 13 to Jan. 30.”

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.

– The study stated (source: NPR News)

New York State Health Commissioner Dr. Mary Bassett said in a statement “The data are not surprising as the vaccine was developed in response to an earlier COVID-19 variant and reduced effectiveness of 2 doses against the Omicron variant has been seen to some degree with all vaccines and ages.”

“It is critical to stress that vaccination is still recommended for everyone 5 years and older, including children 5-11. These data also demonstrate that COVID-19 vaccines reduce the risk of more severe illness and hospitalization for children 5-11, and I encourage parents and guardians to consult their pediatrician about getting their children vaccinated, and boosted if eligible, as soon as they can.”

The CNN Health writes that the the US Centers for Disease Control and Prevention (CDC) has also been collecting their own data on effectiveness of vaccines on children.

Quoting CDC statement, CNN health writes “Pfizer and Moderna’s COVID-19 vaccines continue to offer high levels of protection against severe illness, hospitalization, and deaths in all age groups, despite decreased effectiveness against infection alone during the Omicron wave,” the agency said in a statement”.

“CDC continues to monitor and evaluate data on vaccine effectiveness as it becomes available, but these vaccines work well and are the best tool we have to avoid severe outcomes.”

Coronavirus-19 vaccination watch

According to the US Centers for Disease Control and Prevention (CDC) COVID vaccination tracker page (as of March 1, 9 a.m.) 690,435,045 doses have been distributed and 553,378,046 doses administered. According MDH COVID-19 Response vaccine data (as of Feb 27) a total of 9,418,963 doses of Covid-19 (Pfizer & Moderna) vaccines have been administered in Minnesota. According to the MDH latest tally (as of March 1) the confirmed COVID-19 cases in Minnesota are 1,415,652 (out of 18,798,821 tested) with 12,131 deaths.