What is the main ways STD's and AIDS is spread?

STDs and AIDS are primarily spread through unprotected sexual contact, including vaginal, anal, and oral sex, with an infected person. They can also be transmitted through sharing contaminated needles, from mother to child during childbirth or breastfeeding, and through blood transfusions with infected blood. Additionally, some STDs can spread through skin-to-skin contact. Practicing safe sex and getting regular screenings can help reduce the risk of transmission.