MICROBIO 140P Lecture Notes - Lecture 19: Outline Of Life Forms, Artemisinin, Proguanil
10 Apr 2016
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Ii prevention and cure (third theme of course: prevention and treatment) Personal protection (repellents, protective clothing) [used to ward them off, not kill: deet] Bednets: chemotherapy, vaccine/immunization, in general: 40% of crops are eaten before they reach grocery stores and eventually humans. Pyrethrum: pyrethrins: occurring naturally (insecticide) in chrysanthemum flowers, pyrethroids: synthetic (human made) compounds designed to improve insecticidal properties. Paul hermann muller (nobel prize: dichlorodiphenyltrichloroethane (ddt) Through the 1940s and 50s ddt was sprayed everywhere. Used to treat body lice: sprayed directly on skin: **ddt is the primary reason we no longer have malaria in the u. s. Ddt affected the entire country: killed off enough of the parasite infected mosquito population to eliminate the parasite in the u. s. Humans ate animals that ate these plants, the ddt thus built up in the food chain (birds of prey) ***ddt prevents the proper growth of eggs: more fragile and had a gel like texture instead of solid, so babies couldn"t develop.
