Shortage of clean water has been cited as the reason Nairobi, Narok, Kajiado, Garissa and Machakos counties have experienced cases of cholera.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/kenya-shortage-clean-water-blame-cholera-outbreak-ministry
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/all-africa
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drinking-water
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kenya
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cholera
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waterborne-diseases
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa