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. 2011 Jan 14:11:16.
doi: 10.1186/1471-2334-11-16.

Is public transport a risk factor for acute respiratory infection?

Joy Troko  1 , Puja Myles, Jack Gibson, Ahmed Hashim, Joanne Enstone, Susan Kingdon, Christopher Packham, Shahid Amin, Andrew Hayward, Jonathan Nguyen Van-Tam
Affiliations

Is public transport a risk factor for acute respiratory infection?

Joy Troko et al. BMC Infect Dis. .

Abstract

Background: The relationship between public transport use and acquisition of acute respiratory infection (ARI) is not well understood but potentially important during epidemics and pandemics.

Methods: A case-control study performed during the 2008/09 influenza season. Cases (n = 72) consulted a General Practitioner with ARI, and controls with another non-respiratory acute condition (n = 66). Data were obtained on bus or tram usage in the five days preceding illness onset (cases) or the five days before consultation (controls) alongside demographic details. Multiple logistic regression modelling was used to investigate the association between bus or tram use and ARI, adjusting for potential confounders.

Results: Recent bus or tram use within five days of symptom onset was associated with an almost six-fold increased risk of consulting for ARI (adjusted OR = 5.94 95% CI 1.33-26.5). The risk of ARI appeared to be modified according to the degree of habitual bus and tram use, but this was not statistically significant (1-3 times/week: adjusted OR = 0.54 (95% CI 0.15-1.95; >3 times/week: 0.37 (95% CI 0.13-1.06).

Conclusions: We found a statistically significant association between ARI and bus or tram use in the five days before symptom onset. The risk appeared greatest among occasional bus or tram users, but this trend was not statistically significant. However, these data are plausible in relation to the greater likelihood of developing protective antibodies to common respiratory viruses if repeatedly exposed. The findings have differing implications for the control of seasonal acute respiratory infections and for pandemic influenza.

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References

    1. Pandemic Flu. A national framework for responding to an influenza pandemic. London: Department of Health; 2007. pp. 79–80.
    1. Moser M, Bender T, Margolis H, Noble G, Kendal A, Ritter D. An outbreak of influenza aboard a commercial airliner. Am J Epidemiol. 1979;110(1):1–6. - PubMed
    1. Williams CJ, Schweiger B, Diner G. et al.Seasonal influenza risk in hospital healthcare workers is more strongly associated with household than occupational exposures: results from a prospective cohort study in Berlin, Germany, 2006/07. BMC Infect Dis. 2010;10:8. doi: 10.1186/1471-2334-10-8. - DOI - PMC - PubMed
    1. Kar-Purkayastha I, Ingram C, Maguire H, Roche A. The importance of school and social activities in the transmission of influenza A(H1N1)v: England, April - June 2009. Eurosurveill. 2009;14(33) http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=19311 [accessed 23 March 2010] - PubMed
    1. Health Protection Agency. RCGP consultation rate for influenza-like illness England. 2009. http://webarchive.nationalarchives.gov.uk [accessed 25 Feb 2010]

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