CLEAN : Malawi child infected with wild polio 'not fully immunised': WHO

The video discusses a national emergency involving a child with polio, emphasizing the need for immediate immunization of all children under five to prevent the spread of the virus. It highlights the importance of quick action and the potential regional implications if the virus spreads to neighboring countries.

Why is the situation described as a national emergency?

What are the potential regional implications mentioned in the text?