A/RES/58/157 Poverty 20. Reaffirms that investments in children and the realization of their rights are among the most effective ways to eradicate poverty; 21. Calls upon States and the international community to cooperate, support and participate in the global efforts for poverty eradication at the global, regional and country levels, recognizing that strengthened availability and effective allocation of resources are required at all of these levels, in order to ensure that all the development and poverty eradication goals, as set out in the United Nations Millennium Declaration,6 are realized within their time framework, and to promote the enjoyment of the rights of the child; Health 22. Calls upon all States to take all appropriate measures to develop sustainable health systems and social services and to ensure access to such systems and services without discrimination and to pay particular attention to adequate food and nutrition to prevent disease and malnutrition, to prenatal and post-natal health care, to the special needs of adolescents, to reproductive and sexual health and to threats from substance abuse and violence, in particular to all vulnerable groups, and calls upon all States parties to take all necessary measures to ensure the right of all children, without discrimination, to the enjoyment of the highest attainable standard of health; 23. Urges all States to assign priority to activities and programmes aimed at preventing the abuse of narcotic drugs, psychotropic substances and inhalants as well as preventing other addictions, in particular addiction to alcohol and tobacco, among children and young people, especially those in vulnerable situations, and to counter the use of children and young people in the illicit production of and trafficking in narcotic drugs and psychotropic substances; 24. Calls upon all States to give support and rehabilitation to children and their families affected by HIV/AIDS and to involve children and their caregivers, as well as the private sector, to ensure the effective prevention of HIV infections through correct information and access to voluntary and confidential care, treatment and testing, including pharmaceutical products and medical technologies, affordable to all, giving due importance to the prevention of mother-to-child transmission of the virus; Education 25. Also calls upon all States: (a) To recognize the right to education on the basis of equal opportunity by making primary education compulsory and available free to all, without discrimination, by ensuring that all children, including girls, children in need of special protection, children with disabilities, indigenous children, children belonging to minorities and children from different ethnic origins, have access without discrimination to education of good quality, as well as by making secondary education generally available and accessible to all, in particular by the progressive introduction of free education, bearing in mind that special measures to ensure equal access, including affirmative action, contribute to achieving equal opportunity and combating exclusion, and to ensure that the education of the child is carried out and States parties develop and implement programmes for the education of the child in accordance with articles 28 and 29 of the Convention; 6