Nearly 1,000 Health and Human Services staffers on Wednesday signed an open letter accusing the agency’s secretary of endangering the nation’s health and the agency itself by spreading misinformation that led a violent gunman to attack the CDC’s headquarters earlier this month.

More than 750 current and former federal health workers signed a letter to HHS Secretary Robert F. Kennedy Jr.

For Kennedy's part, the letter says he called the CDC a "cesspool of corruption," fired key HHS employees and undermined vaccines – claiming that mRNA vaccines "failed to protect effectively" and that the measles vaccine has not been "safety tested."

A group of current and former staff members at the US Department of Health and Human Services are publicly blaming Secretary Robert F. Kennedy Jr. for spreading misinformation that led to a deadly shooting at the nation’s leading public health agency earlier this month.

The AAP published its own vaccine schedule in a break from federal guidance. HHS secretary RFK Jr. took to social media to respond.