I am a figment of my own imagination
Join Date: Oct 2000
Location: Jeddah, Saudi Arabia
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Two obvious sources of contaminatin/ irritation discussed seem to be those that can be considered as part of the aircraft and it's systems primarily in this case pressurisation and conditioning, the second amongst the passengers themselves being those who will be carrying an infection on board and by virtue of circulation distributing this amongst the other passengers.
The fuel crisis which saw aircraft manufacturers seeking fuel ecomony in the decreased tapping of of engine bleed air and increased use of what was taken by re-circulation and decreased outflow, has been coupled with known maintainance deficiencies in regard to cabin air filtration systems where abuse/misuse in filters not being replaced as often as they should can only excaerbate the problem.
Day to day variations in risk of pax induced infections will alter with the embarkations points types of passenger and the associated diseases connected to those groups and destinations.
Have there been any studies to date with cabin samples taken which might go towards helping us better understand some of the problems in this field.
It may well become of more particular interest in light of the recent Ebola/ Marburg outbreaks in Africa and the potentially disasterous bird flu threat in the far east. The method of rapid worldwide dissemination will be air transport. It behoves governments to turn their attention to this particular vector as a matter of some urgency