E/C.12/FRA/CO/4 (c) Further the development of maternal, reproductive and child healthcare services as a priority area of action in order to heighten the efficiency of the health-care system; (d) Continue to maintain the health watch in French Guiana in order to monitor the situation with respect to mercury contamination in Amerindian communities; (e) Further the development of public water supply and sanitation systems and provide access to those systems at an affordable price in order to reduce the prevalence of parasitic and infectious diseases. 48. The Committee invites the State party to refer to its general comment No. 14 (2000) on the right to the highest attainable standard of health. The right to education 49. The Committee notes with concern the low school enrolment rate for Roma children and instances in which some mayors have refused to allow certain children to enrol in school (art. 13). 50. Recalling that the principle of non-discrimination in access to education applies to all school-age persons in the State party, regardless of their administrative situation, the Committee calls upon the State party to ensure that mayors fulfil their duty to keep a record of the school-age children in their district, including those who live in informal settlements, and to make certain that they are enrolled in school. Education as a means of levelling the playing field 51. The Committee takes note with concern of the low school completion rate for persons from socially and economically disadvantaged groups (arts. 13, 14, 11, 2 (2)). 52. The Committee urges the State party to take the following steps as part of its efforts to rectify the impact of social and economic inequalities on school performance: (a) Uphold the principle of the right to an appropriate, quality education with a view to ensuring that the mechanisms put in place do not further stigmatize target population groups; (b) Provide the necessary resources in terms of both budgetary allocations and qualified instructors; (c) necessary; Facilitate whenever possible individualized assistance for students where (d) Ensure that indirect costs associated with school attendance at the secondary and tertiary levels do not reduce the accessibility of education for persons from disadvantaged households; (e) Revisit the relaxation of the school assignment system and, if necessary, monitor the effects of that modification on the profile of priority establishments and adopt specific measures designed to foster social diversity; (f) Assess the effects of the introduction of the priority education policy on the correlation between socioeconomic origin and academic success. The right to education in overseas departments and regions and overseas communities 53. The Committee takes note with concern of the difficulties encountered in exercising the right to education in overseas departments and regions and overseas communities. In 10 GE.16-12027