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Coronavirus vaccine: why it’s important to know what’s in the placebo – The Conversation UK

Researchers rarely report what’s in a placebo.



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Some researchers conducting clinical trials on a COVID-19 vaccine have not revealed to the public what the placebo contains, but they should. This is because the placebo ingredients influence how effective or harmful the active treatment, with which the placebo is compared, appears. Our new guideline published in PLOS Medicine remedies this problem by providing a template for reporting whats in placebo controls.
In some COVID-19 vaccine trials, participants in the control group (the group recei…

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