Contents Series Foreword xi Acknowledgments xiii Introduction xv Guide to Health Literacy xvii Common Misconceptions about STDs xxv Questions and Answers 1 General Information 3 1. What is an STD? 3 2. Is there a difference between an STD and a sexually transmitted infection (STI)? 4 3. How many STDs occur in the United States each year? 6 4. Which STDs are the most common? 7 5. Are there different types of STDs? 8 6. Are there different STDs for men and women? 10 7. Do STDs only happen to young people? 11 8. If I practice anal sex, am I still at risk for STDs? 12 9. What are the risks associated with homosexual sex? 14 10. Does being transgender affect my chances of contracting an STD? 15