By Tim Röhn

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

Legal and political concerns prompted the health department to cancel a planned announcement on Friday, officials said.

MIT business professor Retsef Levi teaches about how health care decisions are made, but isn’t a doctor.

MIT business professor Retsef Levi teaches about how health care decisions are made, but isn’t a doctor.

MIT business professor Retsef Levi teaches about how health care decisions are made, but isn’t a doctor.

MIT business professor Retsef Levi teaches about how health care decisions are made, but isn’t a doctor.

The health secretary and his FDA chief, Marty Makary, can’t agree on how to proceed with vaccine safety studies.

The health secretary and his FDA chief, Marty Makary, can’t agree on how to proceed with vaccine safety studies.