HIV and hepatitis B are both blood-borne viruses, while trichomoniasis is a parasite.
HIV stands for human immunodeficiency virus and lives in the bodily fluids, including semen, vaginal fluid, and blood. It is most commonly transmitted through unprotected sex with an infected partner. HIV damages your immune system making it harder to fight infections and diseases. There is no cure for HIV, but current treatments can reduce viral loads to undetectable levels.
The hepatitis B virus often causes no symptoms, and many people recover from infection without treatment. However, it’s possible to develop a chronic infection, which can cause permanent liver scarring and cancer. Symptoms of hepatitis B include nausea, diarrhoea, abdominal pain, and flu-like symptoms.
Trichomoniasis is caused by a parasite that infects the vagina and urethra (the tube that passes urine). Most people infected by trichomoniasis have no symptoms. However, symptoms may include discharge from the vagina or penis, itching or soreness in the genital areas, and pain when urinating. Having a trichomonas infection increases the risk of getting other STIs.