Social & Preventive Medicine Typhoid Mary his known in history to cause more than 1300 cases in her lifetime. This is an example of which of the following epidemic? A Common source single exposure epidemic B Common source continuous or repeated exposure epidemic C Long term or secular trend epidemic D Propagated epidemic 💡 Explanation Typhoid Mary his known in history to cause more than 1300 cases in her lifetime. This is an example of which of the following epidemic? ✓ Correct Answer: B. Common source continuous or repeated exposure epidemic