Increased hand hygiene in air travellers may reduce coronavirus spread by 37 per cent

The risk for global transmission of flu‐type viruses is strengthened by the physical contact between humans and accelerated through individual mobility patterns

As coronavirus spreads across the globe via infected air travellers, authorities are attempting to contain the outbreak and avoid a pandemic. A study published in Risk Analysis analyzes the impact of implementing disease mitigation strategies at airports across the globe. The study finds that increasing traveller engagement with proper hand-hygiene at all airports has the potential to reduce the risk of a potential pandemic by 24-69 per cent. The researchers also identified ten critical airports, central to the global air-transportation network, and if hand-washing mitigation strategies are implemented in just these ten locations, the pandemic risk can drop by up to 37 per cent.

The study, "Hand-hygiene mitigation strategies against global disease spreading through the air transportation network," suggests that if increased hand-washing practices were instituted in ten key there would be a significant impact on decreasing the spread of viruses. These ten airports are not just locations that see large volumes of passengers, they also connect travellers with destinations in all parts of the world.

The airports include:

London Heathrow

Los Angeles International

John F. Kennedy

Charles de Gaulle

Dubai International

Frankfurt

Hong Kong International

Beijing Capital

San Francisco

Amsterdam Schiphol

"Airports, and aeroplanes, are highly infectious because they are close, confined areas with large, mobile populations," states Christos Nicolaides, Ph.D., lead author, University of Cyprus and Massachusetts Institute of Technology (MIT). "Viruses are spread through bodily fluids, so keeping hands clean at major transport hubs is central to control spread."

Airports also contain numerous highly contaminated surfaces that are frequently touched by travellers, including self-service check-in screens, gate bench armrests, water fountain buttons, door handles, seats and tray tables. In addition to increasing the frequency at which public areas are cleaned and sanitized, using proper coughing etiquette, wearing face masks and proper hand hygiene practices are the most common actions that can be adopted by air travellers.

Currently, analyses show that, at most, one in five people have clean hands at any given moment. If hand cleanliness at all airports increased from 20 per cent to 30 per cent, by increasing the capacity and/or awareness of hand-washing, the impact of potentially infectious disease would have a global impact that is 24 per cent smaller. A cost-effective measure would be to adopt these practices at the top 10 influential airports, reducing the impact of the disease spreading to just 37 per cent.

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http://dx.doi.org/10.1111/risa.13438