( ) Mass gatherings can present health problems because they decrease the spread of diseases. 2. ( ) The Saudi Ar Ministry of Health has many years of experience managing people at the Olympic s. 3. ( ) The yearly Hajj brings together about two million people every year. 4. ( ) The pilgrims are from Saudi Arabia. 5. ( ) During Hajj, when pilgrims arrive by plane, they must have a health screening. 6. ( ) In 2008, there was an outbreak of the H1N1 flu. 7. ( ) New technology is very helpful in tracking and reporting doctors. 8. ( ) The special field of health for mass gatherings depends on international cooperation.