A/RES/62/141 HIV/AIDS through, inter alia, the provision of health care, including for sexual and reproductive health, and through preventive education that promotes gender equality; (d) To develop and implement strategies, policies and programmes that identify and address those factors that make individuals particularly vulnerable to HIV infection in order to complement prevention programmes that address activities that place individuals at risk for HIV infection, such as risky and unsafe behaviour and injecting drug use; (e) To promote initiatives aimed at reducing the prices of antiretroviral drugs, especially second-line drugs, available to boys and girls, including bilateral and private sector initiatives, as well as initiatives on a voluntary basis taken by groups of States, including those based on innovative financing mechanisms that contribute to the mobilization of resources for social development, especially those that aim to provide further access to drugs at affordable prices to children in developing countries on a sustainable and predictable basis, and in this regard takes note of the International Drug Purchase Facility, UNITAID; (f) To design and implement programmes to provide social services and support to pregnant adolescents and adolescent mothers, in particular by enabling them and also the adolescent fathers to continue and complete their education; Right to food 27. Calls upon all States to take immediate steps to eliminate child hunger, including through the adoption or strengthening of national programmes to address food security and adequate livelihoods, as well as nutritional security, especially regarding vitamin A, iron and iodine deficiencies, the promotion of breastfeeding, as well as programmes (for example, for school meals) that should ensure adequate nutrition for all children; Promoting and protecting the rights of children, including children in particularly difficult situations 28. Calls upon all States to prevent violations of the rights of children working and/or living on the street, including discrimination, arbitrary detention and extrajudicial, arbitrary or summary executions, torture and all kinds of violence and exploitation, and to bring the perpetrators to justice, to adopt and implement policies for the protection, social and psychosocial rehabilitation and reintegration of those children and to adopt economic, social and educational strategies to address the problems of children working and/or living on the street; 29. Also calls upon all States to protect refugee, asylum-seeking and internally displaced children, taking into account their gender-specific needs, in particular those who are unaccompanied, who are particularly exposed to violence and risks in connection with armed conflict, such as recruitment, sexual violence and exploitation, stressing the need for States as well as the international community to continue to pay more systematic and in-depth attention to the special assistance, protection and development needs of those children through, inter alia, programmes aimed at rehabilitation and physical and psychological recovery, and to programmes for voluntary repatriation and, where appropriate and feasible, local integration and resettlement, to give priority to family tracing and family reunification and, where appropriate, to cooperate with international humanitarian and refugee organizations, including by facilitating their work; 7