Sexually Transmitted Diseases and Infections

Sexually transmitted diseases (STDs) are infections that pass from one person to another through sexual contact. They are also known as sexually transmitted infections (STIs) or venereal diseases (VD). Some STDs can spread with the unsterilized drug needles, from mother to infant during childbirth or breast-feeding, and blood transfusions. Infectious organisms can also move between people in semen, vaginal secretions, or blood during sexual intercourse. Individuals pass on STDs more easily when they are not using contraceptive devices, such as condoms, dams, and sanitizing sex toys. Some infections can transmit through sexual contact but are not classed as STDs. The World Health Organization (WHO) estimates that there are more than 1 million new STDs acquired each day globally. People between the ages of 15 and 24 years acquire half of all new STDs, and 1 in 4 sexually active adolescent females has an STD. However, STD rates among seniors are increasing. The following sections explain the most common STD's.


  • Track 1-1 Human papillomavirus (HPV)
  • Track 2-2 Chlamydia
  • Track 3-3 Chancroid
  • Track 4-4 Crabs, or pubic lice
  • Track 5-5 Genital herpes
  • Track 6-6 Hepatitis B
  • Track 7-7 Trichomoniasis
  • Track 8-8 HIV and AIDS
  • Track 9-9 Molluscum contagiosum

Related Conference of Microbiology