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Protection by Face Masks against Influenza A(H1N1)pdm09 Virus on Trans-Pacific Passenger Aircraft, 2009
- Source :
- Emerging Infectious Diseases, Vol 19, Iss 9, Pp 1403-1410 (2013)
- Publication Year :
- 2013
- Publisher :
- Centers for Disease Control and Prevention, 2013.
-
Abstract
- In response to several influenza A(H1N1)pdm09 infections that developed in passengers after they traveled on the same 2 flights from New York, New York, USA, to Hong Kong, China, to Fuzhou, China, we assessed transmission of influenza A(H1N1)pdm09 virus on these flights. We defined a case of infection as onset of fever and respiratory symptoms and detection of virus by PCR in a passenger or crew member of either flight. Illness developed only in passengers who traveled on the New York to Hong Kong flight. We compared exposures of 9 case-passengers with those of 32 asymptomatic control-passengers. None of the 9 case-passengers, compared with 47% (15/32) of control-passengers, wore a face mask for the entire flight (odds ratio 0, 95% CI 0–0.71). The source case-passenger was not identified. Wearing a face mask was a protective factor against influenza infection. We recommend a more comprehensive intervention study to accurately estimate this effect.
Details
- Language :
- English
- ISSN :
- 10806040 and 10806059
- Volume :
- 19
- Issue :
- 9
- Database :
- Directory of Open Access Journals
- Journal :
- Emerging Infectious Diseases
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.64a8d4b8b824e769ba4d7ba3d02ac8f
- Document Type :
- article
- Full Text :
- https://doi.org/10.3201/eid1909.121765