Sexually Transmitted Infections (STIs), also known as Sexually Transmitted Diseases (STDs) or Venereal Diseases (VD) are diseases that are passed on from one person to another through sexual contact, and sometimes by genital contact – the infection can be passed on via vaginal intercourse, oral sex, and anal sex. Some sexually transmitted infections can spread through the use of unsterilized IV drug needles, from mother to baby during childbirth or breastfeeding, and blood transfusions…… click here for more