E/C.12/TJK/CO/2-3 also concerned about the increasing number of drug users, their poor health and their vulnerability to HIV/AIDS and tuberculosis (art. 12). The Committee urges the State party to take effective measures to combat the inflow and transit of narcotic drugs and to strengthen its policies with a view to preventing drug abuse, reducing the harm associated with drug abuse and providing adequate treatment and rehabilitation for drug users who require them. Right to education 34. The Committee is concerned about the high dropout rates among girls and children from families in disadvantaged situations, and about the gender disparity in enrolment and retention rates across all levels of education (arts. 13 and 14). The Committee recommends that the State party take all appropriate measures to address the problem of high dropout rates among children in disadvantaged situations, including girls, children with disabilities, children belonging to minorities and children of migrant workers or refugees, and to reduce the gender disparity in education. Quality of education 35. The Committee is concerned that the quality of education remains poor, that the State party suffers from a lack of qualified teachers and of teaching materials, that teachers’ salaries are low and that infrastructure and facilities are in poor condition (art. 13). The Committee recommends that the State party take all the necessary measures to improve the quality of education, through allocating sufficient resources, increasing the number of qualified teachers and their remuneration, and improving infrastructure and teaching materials. Inclusive education for children with disabilities 36. The Committee is concerned that there is a lack of inclusive education for children with disabilities in the State party and that reasonable accommodation of their requirements is not always provided in mainstream education (arts. 2, para. 2, and 13). The Committee recommends that the State party promote inclusive education for children with disabilities, including by allocating resources for the provision of reasonable accommodation and additional professional training for teachers. Linguistic rights of ethnic minorities 37. The Committee is concerned at the decreasing number of classes provided in the languages of ethnic minorities and of students attending schools where the teaching is given in the languages of ethnic minorities, owing to the insufficient number of teachers, the lack of retraining programmes for teachers and a shortage of textbooks in minority languages (art. 13). The Committee recommends that the State party take the necessary steps to improve education in ethnic languages, and consider adopting multilingual education programmes in the education system. D. Other recommendations 38. The Committee encourages the State party to consider ratifying the Optional Protocol to the International Covenant on Economic, Social and Cultural Rights. 10