Coronavirus: What if a vaccine doesn't work?

A faithful lights a candle outside the church, after the first mass open for believers after the closing of church services due to the spread of the coronavirus disease (COVID-19), in Kevelaer, Germany May 1, 2020. REUTERS/Thilo Schmuelgen - RC2NFG9XB3BA

Across the world, people are putting their hope in a successful vaccine being developed. Image: REUTERS/Thilo Schmuelgen

Tammy Hoffmann
Professor of Clinical Epidemiology, Bond University
Paul Glasziou
Professor of Medicine, Bond University
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The 'spike' protein sticking out of the coronavirus shell could be used in to make a vaccine. Image: National Institute Of Allergy And Infectious Diseases, NIH
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