Final answer:
15- to 24-year-olds account for approximately 50% of all STI diagnoses each year, indicating a high rate of STI transmission within this age group.
Step-by-step explanation:
Fifteen- to 24-year-olds account for a significant proportion of all STI diagnoses each year. According to the Centers for Disease Control and Prevention (CDC), approximately 70 percent of gonorrhea cases occur in people aged 15 to 24 years. This suggests that this age group has a high rate of STI transmission, likely due to factors such as higher risk-taking behaviors and lack of knowledge about STI transmission and prevention.
Given this information, the correct answer to the question is that 15- to 24-year-olds account for 50% of all STI diagnoses each year. This underscores the critical need for targeted education and prevention efforts in this age demographic to help reduce the incidence of STIs.