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Some aspects of the airborne transmission of infection
by Raymond P. Clark, and Mervyn L. de Calcina-Goff
InterfaceVolume 6(Suppl 6):S767-S782
December 6, 2009
©2009 by The Royal Society
(a) Thermal images showing the temperature map over the skin of two subjects at room temperature.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
(a) Schlieren photographs of the convective airstreams over a standing nude subject.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
Diagrammatic representation of the natural convective boundary layer flow generated over a subject in the standing, sitting and lying postures as visualized by the Schlieren technique.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
Schlieren photographs of an infant nursed in an incubator.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
(a) Scanning electron micrograph of skin scales nearly ready to be detached from the skin surface.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
Examples of the bellows action of operating theatre garments together with a Schlieren picture of the bellows effect at the bottom of an operating gown.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
Four assemblies graded according to bacterial dispersal and comfort.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
(a) Dramatic stroboscopic pictures showing the dispersal of droplets in a sneeze and (b) how this dispersal is attenuated by a cotton mask.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
(a) Drawings showing how expired air flow is modified when a mask is worn and a Schlieren photograph showing expired air flow around the mask.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
(a) The unique ‘hoverbed’ where the patient was levitated on a column of warm, sterile air.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
Variation of airborne bacterial concentration (assessed with a slit sampler) with time during a machine-cleaning period (8–28 min) in an operating theatre in (a) full, (b) half and (c) zero flow
conditions.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
A Schlieren photograph showing the outflow from a deficient safety cabinet.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society
(a) A diagram of a laboratory, maintained at negative pressure that can be varied, with a double airlock entry.
Raymond P. Clark, and Mervyn L. de Calcina-Goff J. R. Soc. Interface 2009;6:S767-S782
©2009 by The Royal Society