EBOLA Source for "Ebola lives on surfaces X amount of days"

Possible Impact

TB Fanatic
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joannita

Veteran Member
Hmm; any other studies out there? Where did the info on "survives longer in the cold" come from, for example? The study you posted is about surface contamination in a hospital setting.
 

Old Gray Mare

TB Fanatic
This is dated 2010 and may not cover the mutated strain of Ebola Zaire that is currently spreading.
Assessment of the Risk of Ebola Virus Transmission from Bodily Fluids and Fomites
http://jid.oxfordjournals.org/content/196/Supplement_2/S142.full


:dot5: ETA: The better report

Journal of Applied Microbiology



Volume 109, Issue 5
November 2010
Pages 1531–1539


The survival of filoviruses in liquids, on solid substrates and in a dynamic aerosol

First published: 22 May 2010
http://onlinelibrary.wiley.com/enhanced/doi/10.1111/j.1365-2672.2010.04778.x/
 

joannita

Veteran Member
Excellent aritcle; thank you so much; EXACTLY what I needed. It will be very interesting to see what response I get back.
 

Countrymouse

Country exile in the city
The following from CIDRAP :

It is mainly concerned with aerosol transmission of ebola but the second sentence speaks to a possible surface vector:

From...
http://www.cidrap.umn.edu/news-persp...otection-ebola

"Being at first skeptical that Ebola virus could be an aerosol-transmissible disease, we are now persuaded by a review of experimental and epidemiologic data that this might be an important feature of disease transmission, particularly in healthcare settings."

"In still air, 3-mcm particles can take up to an hour to settle. With air currents, these and smaller particles can be transported considerable distances before they are deposited on a surface."

- 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.

"Facemasks, however, do not offer protection against inhalation of small infectious aerosols, because they lack adequate filters and do not fit tightly against the face."

"Risk level and working conditions suggest that a PAPR (Powered Air Purifying Respirator) will be more protective, cost-effective, and comfortable than an N95 filtering facepiece respirator."

Information on the authors of the article, from the link:

Editor's Note (Sep 17): Today's commentary was submitted to CIDRAP by the authors, who are national experts on respiratory protection and infectious disease transmission. In May they published a similar commentary on MERS-CoV. Dr Brosseau is a Professor and Dr Jones an Assistant Professor in the School of Public Health, Division of Environmental and Occupational Health Sciences, at the University of Illinois at Chicago.

Breitbart and others picked this info up & published it, and CIDRAP immediately went into CYA mode--they never came right out and said the doctors were wrong (they couldn't, really, as these are apparently respected experts in their fields); all CIDRAP could do was say that THEY had not made such a claim:

CIDRAP has not made claims that "Ebola is Airbone" or that "Ebola [is] Transmittable by Air."
http://www.cidrap.umn.edu/response-statements-falsely-attributed-cidrap-regarding-ebola-transmission

This might be useful in pointing out to her that DOCTORS and RESEARCHERS are saying Ebola is this and that based on OUR studies and OUR knowledge--and yet CIDRAP and CDC are trying to DENY that with NO STUDIES PROVING THE OPPOSITE.
 

Possible Impact

TB Fanatic
So if it is dated, is there anything more recent out there?

If anything, the newer strains would be more "durable" than even this report.

I'd guess any further research in this area will be classified, no way will .goob & .mil fund
this type of research for public disclosure.

Only non-USA research would make it out to the public.


The good report came from the Biomedical Sciences Department, Defence Science and Technology Laboratory of Britain...
 

TerryK

TB Fanatic
Very good article. I wish most of the studies would have been done at room temps instead of 4 degrees Celsius.
I would like to see graphs of viral decay at room temperatures in liquids, solid surfaces like glass, plastic and metal.
The article touched on the antibacterial properties of some metals, particularly silver, but I it only mentioned the possibility that such metals were also antiviral. Too bad.
Perhaps it would have shown the possibility of using certain metals extensively in Ebola containment rooms.
Imagine a room primarily of metal where most instruments and everything else was silver plated :lol:

Also instead of stopping with viral decay rates in aerosols, liquids and solids in normal air, it would have been nice to also determine the effectiveness of UV light at different intensities, and various other disinfectants such as bleach at various concentrations, alcohol and H2O2.

Still a good study and it makes me disappointed that the CDC hasn't done a more thorough study as I mentioned above and published the results to the general medical establishment. What are they doing with all the money they are getting? Spending it on parties like the GAO?
 
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