The HHS secretary instead blamed immigrants, Mennonites and other countries for the measles outbreak in the U.S., not his own vaccine disinformation. WASHINGTON – Health and Human Services Secretary Robert F. Kennedy Jr. on Wednesday refused to say whether he takes any responsibility for the surge in measles cases around the country. Kennedy, who has spent decades spreading disinformation about the safety of vaccines, has been testifying to Congress for the past two days about President Donald