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Hepatitis A and B and some types of Human Papillomavirus (HPV) can be prevented by vaccines. Vaccines for some other STIs, including HIV and Herpes Simplex Virus (HSV) are being developed.
Vaginitis is an inflammation of the vagina. Vaginitis may be caused by an infection by bacteria, yeast, viruses and protozoa, or a reaction to chemicals or scents, or a reaction to changes in the body's hormones. The symptoms vary depending on the cause.