[What are incidence and prevalence].
Morbidity indicators are basic tools of epidemiology. In this short technical presentation, examples from tropical medicine are used to illustrate and explain the concepts of incidence, incidence rate, cumulative incidence or attack rate, incidence density rate, prevalence, prevalence rate and the link between disease prevalence and incidence.
Service de Médecine des collectivités, Institut de Médecine Tropicale du Service de Santé des Armées, Marseille, France. medco.imtssa@wanadoo.fr
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Sbai-Idrissi
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Galoisy-Guibal
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JP
Boutin
D003715:Dengue / Q000453:epidemiology; D004813:Epidemiology; D006679:HIV Seropositivity / Q000150:complications; D006801:Humans; D009017:Morbidity; D013997:Time Factors; D014397:Tuberculosis, Pulmonary / Q000150:complications / Q000453:epidemiology