Answering your COVID-19 vaccine trial questions
Q2: What is the point of having a placebo in the trial? Smith: Well, the placebo group in these initial trials is critical to knowing if the vaccine works or not.
Q2: What is the point of having a placebo in the trial? Smith: Well, the placebo group in these initial trials is critical to knowing if the vaccine works or not.
More than 22 million Americans have contracted the virus. Get the latest headlines from the Coronavirus Press today.