Gender plays an important role in the spread of HIV. Young women are more likely than men to contract HIV in the Caribbean, and most of these women are between 24–44 years old. In developing countries in general, women are at an extreme disadvantage in terms of the prevention and treatment of HIV. The gender hierarchies found within many societies contributes to the correlation of women and HIV. One of the factors that put women most at risk is sexual violence. The first sexual experience of a girl is often forced, and during unprotected vaginal intercourse, women are more likely than men to contract HIV, because HIV-infected semen has a higher viral concentration than vaginal secretions. The Capability Approach, outlined by Nussbaum's Central Capabilities, lists bodily health and bodily integrity as crucial components of human dignity, and both of these are violated in the case of HIV transmission through rape. Furthermore, sexual relations between older men and younger women during transactional sex possibly explain why more teenage girls than boys are HIV-positive in the Caribbean.