2.2.4 Water-related diseases
Water-related diseases are transmitted by insects that breed or feed in or near water bodies. The best-known example is malaria, which is spread by the Anopheles mosquito (this disease will be described in Section 2.3.2). Water-related diseases are not associated with lack of access to clean drinking water or to hygiene and sanitation services. The significant factor is the presence of standing water, which provides a habitat for the insects to breed. Other water-related diseases include onchocerciasis (spread by blackfly), dengue fever and yellow fever (both spread by mosquitoes).