Answer: Condoms and dental dams. Only condoms and dental dams (made from latex or polyurethane, not lambskin) provide protection from STIs and HIV.

Answer: True. STIs can be treated, but not all of them can be cured.

Answer: False. Some STIs do not have symptoms, including chlamydia, gonorrhea and trichomoniasis. Even if an STI does not show symptoms, it can still be passed from person to person.

Answer: Vaginal sex, Oral sex and Anal sex. Having unprotected vaginal sex, oral sex or anal sex with a partner who has an STI – whether they have symptoms or not – can give you the infection. STIs are caused by viruses, bacteria and parasites that are passed through bodily fluids like blood, semen and vaginal discharge. They can’t survive on hard surfaces like toilet seats.

Answer: False. Many STIs don’t have symptoms, so your partner might have one without knowing it. It’s always best for both you and your partner to get tested before having sex.

Answer: False. You can’t tell by looking at someone whether they have an STI, especially if they have one that doesn’t show symptoms. The only way to know for sure if you or your partner have an STI is to get tested.

Answer: Using condoms and Not having sex. The only way to completely protect yourself against an STI is to not have oral, anal or vaginal sex. If you do have sex, always wear a condom or dental dam to protect yourself and your partner. Chlorine cannot kill an STI and gives you no protection at all.

Answer: False. Even if you’ve had an STI, you can get it again after you’ve been treated.