Source CNN: Polio vaccination exercise

In recent times, Polio outbreak made hits in Africa following the emergence of a strain thought to be new as it affected adults and previously immunized. Today, Hotan and Bazhou in the China's western Xinjiang province has been affected by polio involving six children, three adults and killing one. Fear is not the spread of the virus to neighboring areas but to the world indeed as the virus  could go beyond borders. Polio can be spread via ingesting food or water contaminated with an infected person's stool or contact with respiratory secretions. Travel to any of the affected regions would require careful planning.