CRC/C/MEX/CO/3 page 13 (d) Continue and strengthen its efforts to prevent mother-to-child transmission of HIV/AIDS and other STIs; (e) Ensure the free access to anti-retroviral treatment; (f) Develop programmes to protect and assist HIV/AIDS orphans and other vulnerable children; (g) Seek international assistance from, among others, the Joint United Nations Programme on HIV/AIDS (UNAIDS), the United Nations Population Fund (UNFPA) and UNICEF, to that effect. Standard of living 54. The Committee welcomes the Oportunidades Programme, which aims at reducing poverty. The Committee, however, remains very concerned at the high number of children living in poverty and at the persistent and wide social disparities, despite the economic growth of the country. It further notes that the Mexican Social Security Institute (IMSS) offers social security to children of working parents. It also notes that children attending school are entitled to medical care for accidents occurring within the school. However, the Committee remains concerned at the large number of children who do not benefit from social security, such as children of unemployed or self-employed parents. 55. The Committee recommends that the State party strengthen measures to significantly reduce poverty and social disparities in order to meet the Millennium Development Goals (MDGs) in that regard, and ensure that all children have equitable and adequate access to quality health care, social services, food, shelter and education. In particular, the State party is encouraged to take all necessary measures to ensure that social protection programmes, such as the Oportunidades Programme, reach all children who need it and have a positive impact on the enjoyment of the human rights of the beneficiary families. 7. Education, leisure and cultural activities (arts. 28, 29 and 31 of the Convention) Education, including vocational training and guidance 56. The Committee welcomes the establishment of the Oportunidades Programme and of the “Programme for Reducing Arrears in Initial and Basic Education”, the reform of article 3 of the Constitution adopted in 2001 making preschool education compulsory for all as of 2008/9, as well as measures taken to increase the quality of education, in particular in remote areas. However, the Committee is concerned at continuing low enrolment rates, especially among migrants and indigenous children; the insufficient resources allocated to education; the considerable disparities in the coverage and quality of education between urban and rural areas; high dropout rates, particularly among adolescents as well as rural, indigenous and migrant children; and the low quality of teaching. The insufficient bilingual intercultural education in indigenous areas is also a cause of concern as it negatively affects the dropout rate in these areas. The lack of access to educational programmes for juvenile offenders is also a cause of concern.