All Pfizer-BioNTech articles
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News
Study finds increased risk of Guillain-Barré after COVID-19 infection
Having a COVID-19 infection is associated with an increased risk of developing the rare disorder called Guillain-Barré syndrome within the next six weeks.
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News
Moderna is safest, most effective mRNA vaccine against COVID-19 for older adults
A study of older US adults found that the risk of negative effects of both mRNA vaccines is exceptionally low, but lowest with the Moderna vaccine.