           Acquisition of 76 haemodialysis machines that are being installed in hospitals in Kaolack, Touba, Ziguinchor and Grand Yoff ; Acquisition of scanners meant for hospitals in Grand-Yoff (Dakar), SaintLouis, Kaolack, Tambacounda, Touba, Ourossogui and Kolda ; Equipping surgical operation blocks at the Khombole, Dahra and Darou Mousty health centres; Replacement of the Cobalt cancer bomb at the Aristide Le Dantec Hospital ; Acquisition of two conventional radiology tables for the Saint-Louis and Kaolack hospitals; Installation of the angiography apparatus at the cardiology centre of Aristide Le Dantec Hospital. Free Caesarian section operations and deliveries; Free artemisinin-based combination drugs for children suffering from malaria ; Free anti-tuberculosis drugs ; Provision of healthcare for persons aged 60 years and above since 2006 under the Plan SESAME which is based on free healthcare and supply of drugs in all government health facilities. Health care and supply of essential drugs are provided on individual basis and the beneficiary must have a biometric identity card128 ; Subsidy is provided by the State for insulin meant for diabetic patients by maintaining the price at the same level in spite of switching from animal insulin to human insulin. IV. THE RIGHT TO A SAFE ENVIRONMENT (Article 24) 328. For a Sahelian country like Senegal close to the Sahara desert, with a tropical climate and a low rainfall pattern and a coast line of more than 500 kilometres, the protection of natural resources and the environment cannot but be « a top priority 129» for its leaders. 329. This geographical situation, coupled with the climatic change taking place on the continent for more than a decade, exposes Senegal to a myriad of problems among which are the following :      128 129 Degradation of the forest ecosystems and their related services ; Shortage of water resources and decline in agricultural productivity ; Coastal erosion ; Upsurge of pollution and wastes ; Proliferation of water-borne and respiratory diseases. In 2011, this programme covered 11.44% of the population who are 60 years and above. See the Environmental Sector Policy Letter, page 3. 75