Final answer:
Chlamydia and gonorrhea are STIs particularly associated with an increased risk of infertility in women due to their potential to lead to pelvic inflammatory disease if left untreated.
Step-by-step explanation:
Among the sexually transmitted infections (STIs) listed, Chlamydia and gonorrhea are particularly associated with an increased risk of infertility in women. Chlamydia, caused by C. trachomatis, is the most commonly reported STI and most infections are asymptomatic.
Untreated chlamydia can lead to serious reproductive complications like salpingitis and pelvic inflammatory disease (PID), which can result in infertility. Similarly, gonorrhea, caused by N. gonorrhoeae, if left untreated can also lead to PID and subsequently infertility. While herpes simplex and syphilis are serious STIs, they are not as commonly associated with infertility as chlamydia and gonorrhea.