Pakistan is one of the two remaining countries in the world where poliomyelitis (polio) is still categorized as an endemic viral infection, the other being Afghanistan. As of October 2015, there have been 38 documented cases of wild polio virus in Pakistan in the past year. Though the polio immunization campaign in the country started in 1974, the efforts for eradication officially started in 1994. The infection remains endemic despite over 100 rounds of vaccination being carried out in the past decade. Pakistan had the world's highest number of polio cases in 2014, and as of October 2015, it has maintained this record. However, the number of cases in 2015 are a fraction of those recorded in 2014. The country has announced a goal of eradication by 2016.