After First COVID-19 Vaccine Approval, How Will Other Trials Maintain Placebo Control?

 
• By Derrick Gingery
Antibodies immunoglobulins attacking coronavirus covid-19 influenza virus cell, 3D immune system medical illustration background. Corona virus 2019-ncov sars cell, igm. Coronavirus sars-cov-2 disease
Alternative statistical approaches may be possible if placebo controls cannot be maintained. • Source: Shutterstock

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