Social & Preventive Medicine All of the following statements about ‘yaws’ are true, except: A Caused by Treponema paeunae B Transmitted non venerally C Secondary yaws can involve bone D Late stages of yaws involve hea and nerves 💡 Explanation All of the following statements about 'yaws' are true, except: ✓ Correct Answer: D. Late stages of yaws involve hea and nerves