Warning over Vietnam pig's blood delicacy
Media playback is unsupported on your device
Video

Scientists warn about Vietnam pig's blood delicacy

In Vietnam, raw pig's blood is considered to be a delicacy, but scientists are warning consumers to avoid it after an increase in the number of people contracting a serious form of meningitis.

Video: Claudia Hammond and Ha Mi

  • 25 May 2017
  • From the section Asia