A nurse is discussing the vector of STIs with a group of clients. Which of the following STIs is transmitted through direct contact with infected blood, semen, vaginal secretions, or breast milk? Select all that apply.

Choice A rationale:

Chlamydia is caused by the bacterium Chlamydia trachomatis, not a protozoa.

Choice B rationale:

Gonorrhea is caused by the bacterium Neisseria gonorrhoeae, not a protozoa.

Choice C rationale:

Syphilis is caused by the bacterium Treponema pallidum, not a protozoa.

Choice D rationale:

Trichomoniasis is indeed caused by a protozoa called Trichomonas vaginalis. It is a common STI that affects the urogenital tract and is transmitted through sexual contact.

Choice A rationale:

Using condoms consistently and correctly is a valid statement. Condoms provide a barrier that can significantly reduce the risk of STI transmission by preventing direct genital contact.

Choice B rationale:

Getting regular STI testing is crucial for early detection and treatment, even if no symptoms are present. Many STIs can remain asymptomatic, and delaying testing could lead to complications and further spread.

Choice C rationale:

Avoiding sexual contact with multiple partners can indeed lower the risk of STIs, as it reduces exposure to potential carriers. However, this choice does not require further education.

Choice D rationale:

Practicing abstinence is an effective method to prevent STIs, but it may not be feasible for everyone. It is not the "most effective" method, as condoms and regular testing are also vital strategies.