 Only 3% of the country has antiretroviral therapy available, compared to a 17% coverage in the neighbouring countries of Chad and the Republic of the Congo.The nation is divided into over 80 ethnic groups, each having its own language.The largest ethnic groups are the Baggara Arabs, Baka, Banda, Bayaka, Fula, Gbaya, Kara, Kresh, Mbaka, Mandja, Ngbandi, Sara, Vidiri, Wodaabe, Yakoma, Yulu, Zande, with others including Europeans of mostly French descent.