Covid cases remain lowest among younger children, even after schools reopened, study says

Photos: Children around the world wear masks
China: Children wearing face masks prepare to board a train at Nanjing Railway Station before the three-day Dragon Boat Festival holiday on June 24, 2020.
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Photos: Children around the world wear masks
South Africa: A woman and her child wear face masks to protect themselves against the pandemic in Johannesburg, South Africa, on March 26.
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Photos: Children around the world wear masks
Spain: A child plays with his father outside while wearing face masks as a precaution against Covid-19, following the end of a 48-day quarantine.
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Photos: Children around the world wear masks
India: A boy and a man wear face masks while riding with their family on a motorbike in Amritsar on July 8.
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Photos: Children around the world wear masks
Australia: Kids wear face masks at Adelaide's Victoria Square demonstrate in support of the Black Lives Matter movement and against Aboriginal Australian deaths in custody.
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Photos: Children around the world wear masks
Brazil: A mother holds her daughter while a nurse wearing a protective mask and shield gives the child a flu vaccine.
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