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  • Efficacy

    (of a drug or treatment) the maximum ability of a drug or treatment to produce a result regardless of dosage. A drug passes efficacy trials if it is effective at the dose tested and against the illness for which it is prescribed. For example, in the procedure mandated by the FDA, Phase II clinical trials gauge efficacy, and Phase III trials confirm it. 5

  • Elimination

    Malaria elimination, which might apply to a country or region, describes the situation in which all local transmission of malaria has ceased; cases of malaria might continue to occur but only as a result of the introduction of infections acquired elsewhere.6

  • Endemic

    where disease occurs on a consistent basis.1

  • Epidemic

    The occurrence of more cases of disease than expected in a given area or among a specific group of people over a particular period of time.1

  • Epidemiology

    the branch of medicine that deals with the incidence, distribution and possible control of disease and other factors relating to health.4

  • Eradication

    The process of removing something permanently, such as a disease from a certain area.1 Malaria eradication describes the situation in which malaria parasites have disappeared from the globe, with the possible exception of specimens held in a secure laboratory. Eradication can refer to all human malaria parasites or to a single species. The eradication of P. falciparum is likely to be easier to achieve than eradication of P. vivax or P. ovale.6

  • Erythrocyte

    A red blood cell.1

  • Erythrocytic stage

    A stage in the life cycle of the malaria parasite found in the red blood cells. Erythrocytic stage parasites cause the symptoms of malaria.1