Question

what are std?
answer in 1-2 paragraphs

Answer 1

A sexually transmitted disease (STD) is an infectious illness that is transmitted through unprotected sexual activity … including vaginal, anal and oral sex, or skin-to-skin contact with an infected area. STDs can also be spread via skin-to-skin contact or through intravenous (IV) drug use, and can be passed to an unborn child during pregnancy or through breastfeeding. STDs are caused by some 30 viruses, bacteria and parasites that survive and spread through sexual contact. STDs have been around for hundreds of years and most people will experience an infection during their lifetime … the Centers for Disease Control and Prevention (CDC) estimate 19 million new cases every year, which presents a major public health challenge. Indeed, untreated STDs are estimated to cause at least 24,000 women to become infertile every year.