Define Induction Period Epidemiology

In other words it is the period between when the disease or outcome begins and when the outcome is identified or diagnosed. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Induction Period And Latency

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The latent period is the time between the diseases first presence and its recognition.

Define induction period epidemiology. Incubation period is the time elapsed between exposure to a pathogenic organism a chemical or radiation and when symptoms and signs are first apparent. Textbook definition definition 1 includes the induction period. Time period between onset of exposure to onset of clinical symptoms.

For example an induction period is necessary for a precatalyst to undergo a transformation to form the active catalyst before the catalyst can take effect in a catalytic reaction. After the induction period the reaction accelerates. Similar to the induction period exposures during the latent period will not influence the outcome.

Exercises are provided at the end of the chapter. The influence of the suspected inductionlatent period on study design is considered. Induction and latent periods are distinguishable concepts referring respectively to the period between causal action and disease initiation and the period between disease initiation and detection.

Onset of pathogenesis to appearance of clinical symptoms. In some catalytic reactions a pre catalyst needs to undergo a transformation to form the active catalyst. A disease cannot be characterized as having a long or short induction period except in relation to a specific etiologic component.

The time between exposure to a specific toxin or pathogen and the initiation of a pathology or disease of interest. Epidemiology epidemiological research induction period latent period oxford scholarship online requires a subscription or purchase to access the full text of books within the service. In a typical infectious disease incubation period signifies the period taken by the multiplying organism to reach a threshold necessary to produce symptoms in the host.

The latent period is the time from when the outcome starts to when the outcome is identified. Ignoring induction periods can lead to runaway reactions. Generally the longer the induction period the more difficult it is to link the putative cause and a disease which compromises evaluation of causality.

Epidemiologists usually use this definition. Induction time is the time interval needed to start a reaction or further action. Induction and latent periods are distinguishable concepts referring respectively to the period between causal action and disease initiation and the period between disease initiation and detection.

This chapter discusses induction periods and latent periods. An induction period in chemical kinetics is an initial slow stage of a chemical reaction.

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