منابع مشابه
Early Efforts at Control : Variolation, Vaccination, and Isolation and Quarantine
Besides killing many of those who were infected, an attack of smallpox left most of its survivors pockmarked, and it was realized in ancient times that pockmarked persons never caught smallpox again . By accident, it was found that persons who were infected with smallpox via a scratch on the skin suffered a much less severe form of the disease . Long ago, in places in which smallpox had become ...
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In the absence of valid medicines or vaccine, quarantine and isolation strategies are the most important and effective measures against the SARS outbreaks. This paper discusses the application of the optimal and sub-optimal control for SARS outbreak control via the Pontryagin’s Maximum Principle and genetic algorithm, respectively. To this end, a pair of control variables representing the quara...
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Commentary.
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Two SEIR models with quarantine and isolation are considered, in which the latent and infectious periods are assumed to have an exponential and gamma distribution, respectively. Previous studies have suggested (based on numerical observations) that a gamma distribution model (GDM) tends to predict a larger epidemic peak value and shorter duration than an exponential distribution model (EDM). By...
متن کاملControl of Epidemics by Quarantine and Isolation Strategies in Highly Mobile Populations
In the absence of valid medicines or vaccine, quarantine and isolation strategies are the most important and effective measures against the outbreaks of epidemic diseases such as SARS. This paper discusses the application of the optimal quarantine and isolation strategies for SARS outbreak control via the Pontryagin’s Maximum Principle. We construct a multigroup SARS transmission model for trav...
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ژورنال
عنوان ژورنال: BMJ
سال: 1952
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.4774.34