Several scientists are conducting mosquito larvae counts around a small pool of standing water in a marshy area. Verso: WHO/11887. AFRO. Malaria. Reconnaissance is the first stage in malaria eradication. This phase has proved necessary in certain countries because they lack the necessary basic health services that would enable them to launch a larger-scale attack. The photograph shows a team in Togo investigating the density of mosquito larvae in streams and marshy land.
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World Health Organization; Source: Research; Research date: 20150821