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Document ID (ISN)64202
CIS number 95-747
ISSN - Serial title 0002-8894 - American Industrial Hygiene Association Journal
Year 1994
Convention or series no.
Author(s) Nicas M.
Title Modeling respirator penetration values with the Beta distribution: An application to occupational tuberculosis transmission
Bibliographic information June 1994, Vol.55, No.6, p.515-524. Illus. 31 ref.
Abstract Even workers wearing respirators may be infected following inhalation of respirable particles, termed droplet nuclei, that carry viable mycobacterium tuberculosis bacilli. Based on the expected number of infectious doses inhaled, the Poisson probability model is used traditionally to predict an individual's risk of infection. This article synthesizes the beta distribution, as applied to average penetration values among a respirator-wearing population, and the Poisson distribution, as applied to an individual's infection risk, to describe the population risk of Mycobacterium tuberculosis infection.
Descriptors (primary) tuberculosis; biological hazards; respirators
Descriptors (secondary) mathematical models
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Personal protection
Broad subject area(s) Biological hazards
Browse category(ies) Bacterial and parasitic diseases
Biological hazards
Respiratory protection