Robert F. Kennedy Jr. addressed the worsening avian flu crisis, saying vaccinating birds turns them into “mutation factories.

The spread of H5N1 bird flu has sickened dozens of Americans, resulted in a nationwide egg shortage and led to the deaths of ...

Would vaccinating poultry turn birds into "mutant factories"? Kennedy said the new opposition from his health agencies was based on concerns that vaccinating poultry without being able to provide ...