Twins Evan and Lizzy are enrolled in Pfizer's vaccine trial for children between ages five and 11.
from BBC News - World https://ift.tt/3CQUCWJ
from BBC News - World https://ift.tt/3CQUCWJ
What it's like to be a nine-year-old in a vaccine clinical trial
![What it's like to be a nine-year-old in a vaccine clinical trial]()
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September 27, 2021
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