Turkey has revealed 504 students infected by "swine flu", director of the Influenza Study Center of the Istanbul Medical University, Selim Badur said, the Turkish Anadolu news agency reported.
So far, the center examined 2,665 students, Badur added. Spread of the "swine flu" among students has caused anxiety among the population, and the relevant agencies are holding preventive measures to prevent the spread of the virus, the director said.