Iran said Friday the security forces will clear the streets nationwide within 24 hours so all citizens can be checked for coronavirus — its toughest measure yet to combat the outbreak. The COVID-19 epidemic in Iran — a nation of more than 80 million people — has now claimed over 500 lives and infected more than 11,000. Since it announced the first deaths last month, Iran has shut schools, postponed events and discouraged travel ahead of Nowrouz, the country’s New Year holidays.