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Deposition of respiratory virus pathogens on frequently touched surfaces at airports

Ikonen, Niina; Savolainen-Kopra, Carita; Enstone, Joanne E.; Kulmala, Ilpo; Pasanen, Pertti; Salmela, Anniina; Salo, Satu; Nguyen-Van-Tam, Jonathan S.; Ruutu, Petri

Authors

Niina Ikonen

Carita Savolainen-Kopra

Joanne E. Enstone

Ilpo Kulmala

Pertti Pasanen

Anniina Salmela

Satu Salo

Jonathan S. Nguyen-Van-Tam jvt@nottingham.ac.uk

Petri Ruutu



Abstract

BACKGROUND: International and national travelling has made the rapid spread of infectious diseases possible. Little information is available on the role of major traffic hubs, such as airports, in the transmission of respiratory infections, including seasonal influenza and a pandemic threat. We investigated the presence of respiratory viruses in the passenger environment of a major airport in order to identify risk points and guide measures to minimize transmission.
METHODS: Surface and air samples were collected weekly at three different time points during the peak period of seasonal influenza in 2015-16 in Finland. Swabs from surface samples, and air samples were tested by real-time PCR for influenza A and B viruses, respiratory syncytial virus, adenovirus, rhinovirus and coronaviruses (229E, HKU1, NL63 and OC43).
RESULTS: Nucleic acid of at least one respiratory virus was detected in 9 out of 90 (10%) surface samples, including: a plastic toy dog in the children’s playground (2/3 swabs, 67%); hand-carried luggage trays at the security check area (4/8, 50%); the buttons of the payment terminal at the pharmacy (1/2, 50%); the handrails of stairs (1/7, 14%); and the passenger side desk and divider glass at a passport control point (1/3, 33%). Among the 10 respiratory virus findings at various sites, the viruses identified were: rhinovirus (4/10, 40%, from surfaces); coronavirus (3/10, 30%, from surfaces); adenovirus (2/10, 20%, 1 air sample, 1 surface sample); influenza A (1/10, 10%, surface sample).
CONCLUSIONS: Detection of pathogen viral nucleic acids indicates respiratory viral surface contamination at multiple sites associated with high touch rates, and suggests a potential risk in the identified airport sites. Of the surfaces tested, plastic security screening trays appeared to pose the highest potential risk, and handling these is almost inevitable for all embarking passengers.

Journal Article Type Article
Publication Date Aug 29, 2018
Journal BMC Infectious Diseases
Electronic ISSN 1471-2334
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 18
Article Number 437
APA6 Citation Ikonen, N., Savolainen-Kopra, C., Enstone, J. E., Kulmala, I., Pasanen, P., Salmela, A., …Ruutu, P. (2018). Deposition of respiratory virus pathogens on frequently touched surfaces at airports. BMC Infectious Diseases, 18, doi:10.1186/s12879-018-3150-5. ISSN 1471-2334
DOI https://doi.org/10.1186/s12879-018-3150-5
Keywords influenza virus, respiratory virus, surface contamination, airport
Publisher URL https://bmcinfectdis.biomedcentral.com/articles/10.1186/s12879-018-3150-5
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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