SrasV1, Ncbi, Merge, bibRecord, 001800

The effect of travel restrictions on the spread of a moderately contagious disease

Identifieur interne : 001800 ( Ncbi/Merge ); précédent : 001799; suivant : 001801

The effect of travel restrictions on the spread of a moderately contagious disease

Auteurs : Martin Camitz [Suède] ; Fredrik Liljeros [Suède]

Source :

BMC Medicine [ 1741-7015 ] ; 2006.

RBID : PMC:1764026

Abstract

Background

Much research in epidemiology has been focused on evaluating conventional methods of control strategies in the event of an epidemic or pandemic. Travel restrictions are often suggested as an efficient way to reduce the spread of a contagious disease that threatens public health, but few papers have studied in depth the effects of travel restrictions. In this study, we investigated what effect different levels of travel restrictions might have on the speed and geographical spread of an outbreak of a disease similar to severe acute respiratory syndrome (SARS).

Methods

We used a stochastic simulation model incorporating survey data of travel patterns between municipalities in Sweden collected over 3 years. We tested scenarios of travel restrictions in which travel over distances >50 km and 20 km would be banned, taking into account different levels of compliance.

Results

We found that a ban on journeys >50 km would drastically reduce the speed and geographical spread of outbreaks, even when compliance is < 100%. The result was found to be robust for different rates of intermunicipality transmission intensities.

Conclusion

This study supports travel restrictions as an effective way to mitigate the effect of a future disease outbreak.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1764026

DOI: 10.1186/1741-7015-4-32
PubMed: 17166291
PubMed Central: 1764026

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PMC:1764026

Le document en format XML

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<p>Much research in epidemiology has been focused on evaluating conventional methods of control strategies in the event of an epidemic or pandemic. Travel restrictions are often suggested as an efficient way to reduce the spread of a contagious disease that threatens public health, but few papers have studied in depth the effects of travel restrictions. In this study, we investigated what effect different levels of travel restrictions might have on the speed and geographical spread of an outbreak of a disease similar to severe acute respiratory syndrome (SARS).</p>
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<p>We used a stochastic simulation model incorporating survey data of travel patterns between municipalities in Sweden collected over 3 years. We tested scenarios of travel restrictions in which travel over distances >50 km and 20 km would be banned, taking into account different levels of compliance.</p>
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<p>We found that a ban on journeys >50 km would drastically reduce the speed and geographical spread of outbreaks, even when compliance is < 100%. The result was found to be robust for different rates of intermunicipality transmission intensities.</p>
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<p>This study supports travel restrictions as an effective way to mitigate the effect of a future disease outbreak.</p>
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Swedish Institute for Infectious Disease Control, Solna, Sweden</aff>
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Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Solna, Sweden</aff>
<aff id="I3"><label>3</label>
Department of Sociology, Stockholm University, Stockholm, Sweden</aff>
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Theoretical Biological Physics, Department of Physics, Royal Institute of Technology, Stockholm, Sweden</aff>
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<history><date date-type="received"><day>17</day>
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<permissions><copyright-statement>Copyright © 2006 Camitz and Liljeros; licensee BioMed Central Ltd.</copyright-statement>
<copyright-year>2006</copyright-year>
<copyright-holder>Camitz and Liljeros; licensee BioMed Central Ltd.</copyright-holder>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0"><p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/2.0"></ext-link>
), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p>
<pmc-comment> 
 Camitz 
 Martin 
  
  
  
  
 martin.camitz@smi.ki.se 
  
 The effect of travel restrictions on the spread of a moderately contagious disease 
 2006BMC Medicine 4(1): 32-. (2006)1741-7015(2006)4:1<32>urn:ISSN:1741-7015</pmc-comment>
        </license>
</permissions>
<abstract><sec><title>Background</title>
<p>Much research in epidemiology has been focused on evaluating conventional methods of control strategies in the event of an epidemic or pandemic. Travel restrictions are often suggested as an efficient way to reduce the spread of a contagious disease that threatens public health, but few papers have studied in depth the effects of travel restrictions. In this study, we investigated what effect different levels of travel restrictions might have on the speed and geographical spread of an outbreak of a disease similar to severe acute respiratory syndrome (SARS).</p>
</sec>
<sec sec-type="methods"><title>Methods</title>
<p>We used a stochastic simulation model incorporating survey data of travel patterns between municipalities in Sweden collected over 3 years. We tested scenarios of travel restrictions in which travel over distances >50 km and 20 km would be banned, taking into account different levels of compliance.</p>
</sec>
<sec><title>Results</title>
<p>We found that a ban on journeys >50 km would drastically reduce the speed and geographical spread of outbreaks, even when compliance is < 100%. The result was found to be robust for different rates of intermunicipality transmission intensities.</p>
</sec>
<sec><title>Conclusion</title>
<p>This study supports travel restrictions as an effective way to mitigate the effect of a future disease outbreak.</p>
</sec>
</abstract>
</article-meta>
</front>
</pmc>
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The effect of travel restrictions on the spread of a moderately contagious disease

The effect of travel restrictions on the spread of a moderately contagious disease

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Abstract

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