Long-Term COVID-19 Vaccine Studies Hampered As Placebo Recipients Get Real Shot
Scientists are trying to learn more about COVID-19 vaccines from original study participants. That quest is hampered because many people who received a placebo shot have now opted to get the vaccine.
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Health & Science - February 18, 2021 at 04:07AM - Long-Term COVID-19 Vaccine Studies Hampered As Placebo Recipients Get Real Shot
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