Sexually transmitted infections (STIs)
Sexually transmitted infections (STIs) are infections that are spread primarily through person-to-person sexual contact. Several, in particular HIV and syphilis, can also be transmitted from mother to child during pregnancy and childbirth, and through blood products and tissue transfer.
The most common conditions they cause are gonorrhoea, chlamydial infection, syphilis, trichomoniasis, chancroid, genital herpes, genital warts, human immunodeficiency virus (HIV) infection and hepatitis B infection.
There are more than 30 different sexually transmissible bacteria, viruses and parasites. STIs can also cause serious health problems such as infertility, stillbirth, and blindness in newborns.
TDR related research
Currently, TDR has no research on this disease.
TDR publications and articles
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Changing Mindsets: Research Capacity strengthening in low and middle-income countries
1 November 2010 -
A human rights-based approach to neglected tropical diseases
20 February 2009 -
Strategic and business plan for the African Network for Drugs and Diagnostics Innovation (ANDI)
Creating a sustainable platform for R&D innovation in Africa
1 January 2009
Related WHO information
- Fact sheet: Sexually transmitted infections
- Global strategy for the prevention and control of sexually transmitted infections
- Eliminating congenital syphilis
- Sexually Transmitted Diseases Diagnostics Initiative (SDI)
- Vaccine research: sexually transmitted infections
- HIV/AIDS: WHO-UNAIDS HIV Vaccine Initiative
- Cervical cancer: information centre
- Reproductive Health Library
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International travel and health
Publication on travel risks, precautions and vaccination requirements