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 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 is less than that of rubella