Prince Faisal bin Khalid bin Abdulaziz, the Governor of Asir region, launched today at his office in the governorate here, the national vaccination campaign of the Ministry of Health against polio for the year 1434 AH. The Governor announced the start of the campaign which will last for five days and target age groups of less than 5 years of citizens and residents, who are the groups most vulnerable to the disease. Their number is more than 126,000 children in the region.