Sexually Transmitted Diseases, STDs, include HIV/AIDS, hepatitis B, gonorrhoea, chlamydia, syphilis and are found world wide and especially among sexworkers.
Condoms are an important protection, but are not absolute and all sexual contacts carry a risk of STD transmission.
Hepatitis B In certain areas of Africa, Asia and South America up to 20% to 30% of the adult population is carriers of hepatitis B virus and can infect others through sexual contact or blood. Longer travels to these areas should include a vaccination against hepatitis B. More about Hepatitis B
HIV/AIDS HIV is very prevalent in Africa and especially in South and East Africa. In some countries like Zambia and Botswana up to 35% of the adult population is HIV positive and the prevalence can reach 80% in risk groups like sex workers. HIV is increasing rapidly in Asia and Eastern Europe.More about HIV and AIDS