A vaccine for Covid-19 could emerge in the next several months. But first, clinical trials need to reach completion showing that the vaccines reduce Covid. The data must undergo multiple layers of scientific review to weigh risks against benefits. This includes careful analysis by career experts at the Food and Drug Administration, independent safety monitors, scientists who work for the vaccine manufacturer, and outside experts who advise the FDA. In a highly politicized environment, many Americans are understandably concerned...

Source: Wall Street Journal September 13, 2020 20:36 UTC