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Open AccessJournal ArticleDOI

Transmission Dynamics and Control of Severe Acute Respiratory Syndrome

TLDR
It is estimated that a single infectious case of SARS will infect about three secondary cases in a population that has not yet instituted control measures, and public-health efforts to reduce transmission are expected to have a substantial impact on reducing the size of the epidemic.
Abstract
Severe acute respiratory syndrome (SARS) is a recently described illness of humans that has spread widely over the past 6 months. With the use of detailed epidemiologic data from Singapore and epidemic curves from other settings, we estimated the reproductive number for SARS in the absence of interventions and in the presence of control efforts. We estimate that a single infectious case of SARS will infect about three secondary cases in a population that has not yet instituted control measures. Public-health efforts to reduce transmission are expected to have a substantial impact on reducing the size of the epidemic.

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Journal ArticleDOI

Dynamically modeling SARS and other newly emerging respiratory illnesses: past, present, and future.

TL;DR: This work reconcile discrepancies between published estimates of the basic reproductive number R0 for SARS (a crucial epidemiologic parameter), discusses insights regarding SARS control measures that have emerged uniquely from a modeling approach, and argues that high priorities for future modeling should include informing quarantine policy and better understanding the impact of population heterogeneity on transmission patterns.
Journal ArticleDOI

Preliminary prediction of the basic reproduction number of the Wuhan novel coronavirus 2019-nCoV.

TL;DR: Wu et al. as discussed by the authors estimated the basic reproduction number of the Wuhan novel coronavirus (2019-nCoV) based on the susceptible-exposed-infected-removed (SEIR) compartment model and the assumption that the infectious cases with symptoms occurred before 26 January, 2020 are resulted from free propagation without intervention.
Journal ArticleDOI

Estimated epidemiologic parameters and morbidity associated with pandemic H1N1 influenza

TL;DR: The low estimates of epidemiologic parameters for pandemic H1N1 influenza using data from initial reports of laboratory-confirmed cases indicate that effective mitigation strategies may reduce the final epidemic impact of pandemic influenza.
Journal ArticleDOI

A generalized-growth model to characterize the early ascending phase of infectious disease outbreaks.

TL;DR: In this paper, a 2-parameter generalized growth model was proposed to characterize the ascending phase of an outbreak and capture epidemic profiles ranging from sub-exponential to exponential growth.
References
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Book

Infectious Diseases of Humans: Dynamics and Control

TL;DR: This book discusses the biology of host-microparasite associations, dynamics of acquired immunity heterogeneity within the human community indirectly transmitted helminths, and the ecology and genetics of hosts and parasites.
Book

A first course in stochastic processes

TL;DR: In this paper, the Basic Limit Theorem of Markov Chains and its applications are discussed and examples of continuous time Markov chains are presented. But they do not cover the application of continuous-time Markov chain in matrix analysis.
Journal ArticleDOI

Seasonal variation in host susceptibility and cycles of certain infectious diseases.

TL;DR: Ample evidence indicates that photoperiod-driven physiologic changes are typical in mammalian species, including some in humans, and underlie human resistance to infectious diseases for large portions of the year and the changes can be identified and modified, the therapeutic and preventive implications may be considerable.
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