Vietnam faces a concentrated HIV epidemic among high-risk groups, including sex workers, and intravenous drug users. There are cases of HIV/AIDS in all provinces of Vietnam, though low testing rates make it difficult to estimate how prevalent the disease is. The known rates among high-risk groups are high enough that there is a risk of HIV/AIDS rates increasing among the general population as well. People who are HIV+ face intense discrimination in Vietnam, which does not offer legal protections to those living with the condition. Stigma, along with limited funding and human research, make the epidemic difficult to control.