Syrian government has revealed that over two million children have been covered under a polio vaccination campaign in the country. The polio vaccination drive reached 2492821 children said Syrian Health Minister Saad al-Nayef adding that the latest statistics did not include the vaccinated children in the country's northern city of al-Raqqa captured by the radical rebels from the Islamic State of the Iraq and the Levant (ISIL) Xinhua reported Sunday. (Read: Amitabh Bachchan proud to have contributed to India becoming ‘polio-free’) He also said that the second national campaign faced difficulties due to the armed rebels' attacks on the vaccinations'