Those who remain unvaccinated against COVID-19 say their biggest concern is vaccine safety, according to a survey from a nationwide coalition of university-based researchers. The survey was taken in June before the U.S. Food and Drug Administration (FDA) changed the emergency use designation for the Pfizer vaccine, saying the vaccine meets the high standards for safety, effectiveness, and manufacturing quality the FDA requires of an approved product.

It found that 35 percent of unvaccinated people were resistant because of health risks and side effects such as blood clots and heart inflammation and existing conditions like allergies and a history of vaccine reactions. Twenty-four percent thought the vaccines were developed too quickly to evaluate health effects, which contributed to their apprehension. Twelve percent said they do not believe COVID-19 is a considerable risk to them. To read the full story.