Environmental Health and Disease Prevention — Flashcards

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Health has three dimensions: physical health, mental health, and social health. Physical health means the proper functioning of the body and its organs. Mental health means being free from excessive s…

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Human health depends strongly on the environment. Clean air, safe drinking water, nutritious food, and hygienic surroundings support good health. Polluted air, contaminated water, poor sanitation, and…

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Certain diseases show that something is wrong in the surroundings. Breathing problems may suggest air pollution, malaria may suggest stagnant water and mosquito breeding, and digestive diseases may su…

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Female Anopheles mosquitoes breed in stagnant water such as puddles, drains, ponds, and water collected in containers. More stagnant water means more mosquito breeding and a higher risk of malaria spr…

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Malaria is transmitted through the bite of infected female Anopheles mosquitoes. The mosquito picks up the Plasmodium parasite from an infected person and transmits it to a healthy person during the n…

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Malaria needs a mosquito vector for transmission. It is a vector-borne communicable disease caused by Plasmodium, a protozoan parasite. Direct touch does not spread it.

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The four Plasmodium species are Plasmodium falciparum, Plasmodium malariae, Plasmodium ovale, and Plasmodium vivax. Plasmodium falciparum is the most malignant form, and Plasmodium vivax is more commo…

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Prevention includes eliminating stagnant water, improving drainage, using mosquito nets and repellents, and preventing tree felling that creates water pools. Environmental management reduces mosquito …