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Response to Divernan (Reply #69)

Thu Oct 16, 2014, 06:37 PM

70. Here are topic headings from this article.

http://www.cidrap.umn.edu/news-perspective/2014/09/commentary-health-workers-need-optimal-respiratory-protection-ebola

How are infectious diseases transmitted via aerosols?
Is Ebola an aerosol-transmissible disease?
What do we know about Ebola transmission?
Which respirator to wear?
Practical examples
Implications for protecting health workers in Africa
Adequate protection is essential

To summarize, for the following reasons we believe that Ebola could be an opportunistic aerosol-transmissible disease requiring adequate respiratory protection:

Patients and procedures generate aerosols, and Ebola virus remains viable in aerosols for up to 90 minutes.
All sizes of aerosol particles are easily inhaled both near to and far from the patient.
Crowding, limited air exchange, and close interactions with patients all contribute to the probability that healthcare workers will be exposed to high concentrations of very toxic infectious aerosols.
Ebola targets immune response cells found in all epithelial tissues, including in the respiratory and gastrointestinal system.
Experimental data support aerosols as a mode of disease transmission in non-human primates.

Risk level and working conditions suggest that a PAPR will be more protective, cost-effective, and comfortable than an N95 filtering facepiece respirator.

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