Which sexually transmitted infection is caused by a virus rather than by a bacterium?

Which infection is bacterial rather than viral?

A clinician explains that an infection is caused by a bacterium and can be cured with appropriate antibiotics. Which STI fits that description?

Which STI in this group can be prevented with a vaccine that is routinely recommended at ages 11 to 12?

Which STI is caused by the bacterium Treponema pallidum?

Which infection is viral and attacks the immune system?

Which pair contains one bacterial STI and one viral STI?

Hepatitis B can be spread sexually. What type of pathogen causes hepatitis B?

A person has a painless sore at the site of infection. Which STI can begin with this symptom?

A student notices painful genital blisters or sores and seeks medical care. Which infection could cause these symptoms?

Untreated chlamydia or gonorrhea can spread to the uterus and fallopian tubes. What complication can result?

A person develops genital warts after an STI infection. Which pathogen is most associated with genital warts?

An untreated infection has reduced a person's CD4 T cells over time, weakening immunity. Which infection is the likely cause?

A person has burning during urination and unusual genital discharge. Which STI could cause these symptoms?

A patient had pelvic inflammatory disease (PID) that was not treated. What is one possible long-term outcome of PID?

A person with untreated HIV develops severe infections because their immune system is badly damaged. What advanced stage of HIV infection is this?

A rash appears after a painless genital sore went away without treatment. Which STI pattern does this describe?

Besides sexual contact, HIV and hepatitis B can both be transmitted by which route?

Genital herpes and HPV can both spread through what kind of contact?

Some teens believe oral sex carries no STI risk. Which statement about chlamydia, gonorrhea, and syphilis is accurate?

Besides sexual contact and shared needles, which is another way HIV can be transmitted?

Syphilis and genital herpes can spread through contact with a sore. Why do condoms lower but not fully remove this risk?

A person asks whether chlamydia can spread through anal sex as well as vaginal sex. What is the accurate answer?

Which route can transmit gonorrhea, chlamydia, and HIV?

Jordan tests positive for chlamydia during screening but has no symptoms. What does this show?

Maya feels healthy but receives a positive gonorrhea test. Why can this happen?

A person has no genital sores but learns from a test that they have genital herpes. Which statement is accurate?

Why is screening useful even when a person has no STI symptoms?

A person says, "I would know if I had an STI because I would feel sick." What fact makes that statement unreliable?

After a positive STI result, a student asks why testing still mattered when there were no symptoms. What is the best explanation?

How is chlamydia commonly detected?

Which test method can a healthcare provider use to detect gonorrhea?

A clinician suspects syphilis. What test is commonly used to look for evidence of infection?

What kind of sample may be used to test for HIV?

A person has a new genital blister that has not healed. How can a provider most directly test for genital herpes?

How is hepatitis B infection detected?

Why can chlamydia usually be cured with medicine while genital herpes cannot be cured?

A provider says antibiotics can cure gonorrhea but do not cure HIV. What explains the difference?

What does antiretroviral therapy (ART) do for a person with HIV?

A person takes daily antiviral medicine for genital herpes. What can this medicine do?