HIV/STIs

WHO China

The human immunodeficiency virus (HIV) is a retrovirus that infects cells of the immune system, destroying or impairing their function. As the infection progresses, the immune system becomes weaker, and the person becomes more susceptible to infections. The most advanced stage of HIV infection is acquired immunodeficiency syndrome (AIDS). It can take 10-15 years for an HIV-infected person to develop AIDS, and antiretroviral drugs can slow down the process even further.

HIV is transmitted through unprotected sexual intercourse (anal or vaginal), transfusion of contaminated blood, sharing of contaminated needles, and between a mother and her infant during pregnancy, childbirth and breastfeeding.

Sexually transmitted infections (STIs) are spread primarily through person-to-person sexual contact. There are more than 30 different sexually transmissible bacteria, viruses and parasites. Some sexually transmitted infections exist without symptoms.

Several infections, in particular HIV and syphilis, can also be transmitted from mother to child during pregnancy and childbirth, and through blood products and tissue transfer.

WHO work in China

China-WHO Country Cooperation Strategy 2016-2020

WHO China Office-New space for health

Contact information

World Health Organization China Representative Office
401 Dongwai Diplomatic Building,
23 Dongzhimenwai Dajie,
Chaoyang District,
Beijing 100600, PR China
Telephone: +86 10 6532-7189 / 90 / 91 / 92
Fax: +86 10 6532-2359
E-mail: wpchnwr@who.int