General Comment No. 3: HIV/AIDS and the Rights of the Children, CRC/GC/2003/3, March 17, 2003
The right to non-discrimination (art. 2)
8. Of particular concern is gender-based discrimination combined with taboos or negative or judgmental attitudes to sexual activity of girls, often limiting their access to preventive measures and other services. Of concern also is discrimination based on sexual orientation. In the design of HIV/AIDS related strategies, and in keeping with their obligations under the Convention, State parties must give careful consideration to prescribed gender norms within their societies with a view to eliminating gender- based discrimination as these impact on the vulnerability of both girls and boys to HIV/AIDS. States parties should in particular recognize that discrimination in the context of HIV/AIDS often impacts girls more severely than boys.
link to full text of the General Comment: http://www.unhchr.ch/tbs/doc.nsf/(symbol)/CRC.GC.2003.3.En