Created at	Source	Raw Value	Validated value
June 25, 2024, noon	usa	inclusion criteria: * healthy children aged 5 to 11 years old * no contraindications to mrna covid-19 pfizer-biontech vaccines * had never received any covid-19 vaccine before * never had previous covid-19 infections	inclusion criteria: * healthy children aged 5 to 11 years old * no contraindications to mrna covid-19 pfizer-biontech vaccines * had never received any covid-19 vaccine before * never had previous covid-19 infections
April 15, 2022, 11:30 p.m.	usa	inclusion criteria: healthy children aged 5 to 11 years old no contraindications to mrna covid-19 pfizer-biontech vaccines had never received any covid-19 vaccine before never had previous covid-19 infections	inclusion criteria: healthy children aged 5 to 11 years old no contraindications to mrna covid-19 pfizer-biontech vaccines had never received any covid-19 vaccine before never had previous covid-19 infections