Robert F Kennedy Jr is the new health secretary in the United States. He does not trust vaccines very much. He removed all 17 people from a group that gives advice about vaccines. He said these people have problems because they work with drug companies.

Many doctors and health experts do not agree with Kennedy. They say vaccines are safe and important. Some people are worried that new people on the group will not know much about vaccines.

Kennedy did not say who will join the group next. The group has a meeting soon to talk about vaccines for many diseases. Some people think this change will make it harder to protect people from sickness.