The Persistent Misleading Claim That Vaccines Aren’t Properly Tested for Safety

It’s a common, misleading refrain in anti-vaccine circles: Childhood vaccines may be unsafe because few if any have been tested in placebo-controlled trials before being approved. But that claim misunderstands the vaccine safety testing process and takes advantage of a narrow definition of a placebo, scientists told us. The post The Persistent Misleading Claim That Vaccines Aren’t Properly Tested for Safety appeared first on FactCheck.org.