Question

Sexually transmitted infections (STIs)

A) are rarely transmitted through oral sex.
B) can be prevented by contraceptive pills or implants.
C) rarely occur in U.S. adolescents.
D) are contracted primarily through sexual contact.

Answer 1

A sexually transmitted infection (STI) is an infection caused by a pathogen that spreads mainly through sexual contact. It can be transmitted through vaginal, and oral sexual behaviors. To prevent STIs, it is important to avoid sexual contact and practice safe behaviors like using condoms.

Step-by-step explanation:

To be considered an STI, an infection must have only a small chance of spreading naturally in ways other than sexual contact. Some infections that can spread through sexual contact, such as the common cold, spread more commonly by other means. These infections are not considered STIs.

STIs can be contracted primarily through sexual contact, including vaginal, and oral sexual behaviors. These infections are caused by pathogens that enter the body through mucous membranes of the reproductive organs, and some can also be transmitted through body fluids like blood, semen, and breast milk.

Preventing STIs involves avoiding sexual contact and other risky behaviors. While using condoms can lower the risk of infection during some types of sexual activity, they are not completely foolproof as pathogens may still be present in uncovered areas of the body.