raptor wrote:Do you have any data/info on what basic process may be required to render the contaminated materials/surfaces reasonable safe? Not sterile but reasonable safe.
Of course autoclaves(see note at bottom!) and incineration will work nicely but I am thinking about household cleaners like a bleach solution or hot water and detergent in a washing machine.
Raptor, best source I have for this is the CDC recommendations for hospital environmental control
(which is what the janitors get called in a hospital.) They have, btw, been massively clear that they are making these recommendations for hospital patients and they don't automatically apply to non-hospital patients. So I'd figure if you cleaned something to the CDC's hospital standards, you'd be pretty good from a "reasonable action to mitigate risk" standpoint.
AND you'd do it without introducing the possibly novel problem of what happens if Ebola meets a pressure washer
, since that literally may not have happened before, pressure washers likely not being real common in Monrovia and other parts West Africa. (Y'all with West Africa time let me know if I'm wrong about that.) Because we need NEW problems with Ebola.
This was kinda thing that hadn't even crossed my mind when I said bad data could kill and optics and paranoia could really make things a lot worse. (Mind you, I'm not overly concerned that there was Ebola on that sidewalk to meet the pressure washer. But I'm just waiting for some eejit to decide that's a good idea...
) Keep in mind, more is not always more.
Excerpts from the hospital cleaning recommendations, most of the good stuff is down in the FAQ :
How should spills of blood or other body substances be managed?
The basic principles for blood or body substance spill management are outlined in the United States Occupational Safety and Health Administration (OSHA) Bloodborne Pathogen Standards (29 CFR 1910.1030).4 CDC guidelines recommend removal of bulk spill matter, cleaning the site, and then disinfecting the site.3 For large spills, a chemical disinfectant with sufficient potency is needed to overcome the tendency of proteins in blood and other body substances to neutralize the disinfectant's active ingredient. An EPA-registered hospital disinfectant with label claims for non-enveloped viruses (e.g., norovirus, rotavirus, adenovirus, poliovirus) and instructions for cleaning and decontaminating surfaces or objects soiled with blood or body fluids should be used according to those instructions.
I'm betting Raptor or his contractors already have the OSHA Bloodborne Pathogen thing covered, since my daughter's school has a well-labelled cleanup kit for it. So, which disinfectant was that again?
How can I determine whether a particular EPA-registered hospital disinfectant is appropriate for use in the room of a patient with suspected or confirmed Ebola virus infection?
Begin by looking at the product label or product insert or, if these are not available, search the EPA search engine for this information. Users should be aware that an 'enveloped' or 'non-enveloped virus' designation may not be included on the container label. Instead check the disinfectant's label for at least one of the common non-enveloped viruses (e.g., norovirus, rotavirus, adenovirus, poliovirus).
So THIS CHART
of hospital grade disinfectants and what it kills/doesn't is CHOCK FULL(No really I'm going to print it out and laminate it)
of good general info about what kills what. (On SURFACES. This means like floors, walls,counters, plastic things. This does NOT include skin, food, medicines, or linens/carpets, just in case that needs to be said. Given somebody decided to pressure wash that sidewalk, I'm thinking it needs to be said.
) Ebola, btw, is an enveloped virus. Those are generally killed by lots of things. Since it acts a little tougher than average, they're recommending to treat it as an unenveloped virus, which seems like an appropriate abundance of caution to me.
This"Guide to Selection and Use of Disinfectants"
from the British Columbia CDC is also a really excellent resource, not overly technical (to my eye?) and table 6.3 tells you what strengths of bleach for surfaces, which agrees with the WHO recommendations Shrap posted earlier. (Also, since tonite I feel these things need to be said - "Food Surfaces" means bleach concentrations for surfaces you prepare/eat food on, NOT putting bleach on the surface of food!)
In re: autoclaves - we realize everybody with a pressure canner to 15 psi has a really basic autoclave, right? Granted there's a lot of stuff we shouldn't put thru a pressure canner and it's certainly not EPA or OSHA approved, but in case of zombies, there's some stuff I certainly would...