Viral, Fungal, Bacterial & Protozoan STDs & Infections

Various STDs and STIs are spread from infected person through contact with body fluids such as blood, semen or vaginal fluids and contact with infected skin or mucous membranes, such as sores in the mouth. Bacterial STIs include gonorrhoea, chlamydia and syphilis. Viral STIs include HIV, genital warts (HPV), genital herpes and hepatitis B. Trichomoniasis is caused by a parasite.