Social & Preventive Medicine Which of the following statements is true about the epidemiological determinants of measles? A Measles virus survives outside the human body for 5 days B Carriers are important sources of infection C Secondary attack rate is less than that of rubella D Incidence of measles is more in males than females 💡 Explanation Which of the following statements is true about the epidemiological determinants of measles? ✓ Correct Answer: C. Secondary attack rate is less than that of rubella