It's unusual for presidents to give medical advice. But this week, President Trump told parents to delay giving their kids a hep b shot until they turn 12. Doctors say this is bad and dangerous advice.

The unorthodox decision follows a chaotic, unconventional voting process for the Advisory Committee on Immunization Practices (ACIP), whose 12 members were all appointed under Health Secretary Robert F. Kennedy Jr. in the last few months. Many have expressed skepticism about the safety and efficacy of vaccines.

China has approved the world's first domestically developed drug designed to achieve a functional cure for hepatitis B, marking a significant step in the global fight against the chronic liver infection.

In a press conference this week, President Trump said there's no reason to give babies the Hepatitis B vaccine. But pediatricians and infectious disease experts say this guidance is dangerous.