US: Vaccination hesitancy threatens to hamper herd immunity efforts
Al Jazeera, 15 Jul 2021
It is feared vaccine hesitancy among young adults in the US is hampering efforts to achieve herd immunity against COVID-19.
Those aged below 25 are getting jabs at half the rate of older Americans. That has prompted some young people to try and counter the deluge of misinformation online.
Al Jazeera's Heidi Zhou-Castro reports.
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