Editing Ministry of Contagion

Jump to navigation Jump to search
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then publish the changes below to finish undoing the edit.

Latest revision Your text
Line 75: Line 75:
** Bring lunch etc
** Bring lunch etc
** NB could (should) provide supplies, snacks, beverages, coffee etc
** NB could (should) provide supplies, snacks, beverages, coffee etc
===Regarding transmission routes and space closure===
Available scientific studies regarding the stability of SARS-CoV-2 (aka. HCoV-19 or coronavirus) particles in aerosols (from breathing, coughing, speaking, etc.) and on environmental surfaces (from contaminated hands or aerosols settling) provide evidence that the viral particles remain viable for widely differing periods depending on the surface, ranging from several hours (for aerosols) to multiple days (up to 7 days on smooth surfaces).
According to one study, ''"SARS-CoV-2 was stable on plastic, stainless steel, glass, ceramics, wood, latex gloves, and surgical mask, and remained viable for seven days on these seven surfaces. As is shown in Figure 1A, the virus titer declined slowly on these seven surfaces. For example, its TCID50/ml [50% infectious tissue culture dose per millimeter] decreased from 105.83 at time zero to 10^2.06 at day 7 on plastic, which was about a 3.8 log10 reduction from the original inoculum."'' (1)
Another study on the stability of SARS-CoV-2 in aerosols and on various surfaces found that ''"HCoV-19 was most stable on plastic and stainless steel and viable virus could be detected up to 72 hours post application (Figure 1B), though by then the virus titer was greatly reduced (polypropylene from 10^3.7 to 10^0.6 TCID50/mL after 72 hours, stainless steel from 10^3.7 to 10^0.6 104 TCID50/mL after 48 hours, mean across three replicates)."''
The same study also found that  ''"HCoV-19 remained viable in aerosols throughout the duration of our experiment (180 minutes) with a reduction in infectious  titer 3 hours post-aerosolization from 10^3.5 to 10^2.7 CID50/L (mean across three replicates). This reduction in viable virus titer is relatively similar to the reduction observed in aerosols containing SARS-CoV-1, from 10^4.3 to 10^3.5 TCID50/mL (mean across three replicates) (Figure 1A)."'' (2)
The CDC states that:
'''"The virus is thought to spread mainly from person-to-person.'''
* Between people who are in close contact with one another (within about 6 feet).
* Through respiratory droplets produced when an infected person coughs, sneezes, or talks.
* These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.
* COVID-19 may be spread by people who are not showing symptoms."
And further that:
'''"The virus may be spread in other ways.'''
It may be possible that a person can get COVID-19 by touching a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes. This is not thought to be the main way the virus spreads, but we are still learning more about how this virus spreads." (3)
Based on this information, "decontamination by time" would require the space to be kept entirely closed for an absolute minimum of 72 hours, with at a week being optimal to eliminate the risk of surface transmission. Taking this precaution as part of the effort to prepare the space for moving would be strongly recommended.
'''(1)''' '''''Stability of SARS-CoV-2 on environmental surfaces and in human excreta'''''. 2020. Yongjian Liu, Tianyi Li, Yongqiang Deng, Siyang Liu, Dong Zhang, Hanping Li, Xiaolin Wang, Lei Jia, Jingwan Han, Zhuchun Bei, Yusen Zhou, Lin Li, Jingyun Li. doi: https://doi.org/10.1101/2020.05.07.20094805 [pre-print article, not yet peer-reviewed]
'''(2)''' '''''Aerosol and surface stability of HCoV-19 (SARS-CoV-2) compared to SARS-CoV-1'''''. 2020. Neeltje van Doremalen, Trenton Bushmaker, Dylan Morris, Myndi Holbrook, Amandine Gamble, Brandi Williamson, Azaibi Tamin, Jennifer Harcourt, Natalie Thornburg, Susan Gerber, Jamie Lloyd-Smith, Emmie de Wit, Vincent Munster. doi: https://doi.org/10.1101/2020.03.09.20033217 [pre-print article, now published in The New England Journal of Medicine doi: 10.1056/NEJMc2004973]
'''(3)''' www.https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-covid-spreads.html [accessed 2020-06-26 at 10:16 PDT]
Please note that all contributions to Noisebridge are considered to be released under the Creative Commons Attribution-NonCommercial-ShareAlike (see Noisebridge:Copyrights for details). If you do not want your writing to be edited mercilessly and redistributed at will, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource. Do not submit copyrighted work without permission!

To protect the wiki against automated edit spam, we kindly ask you to solve the following CAPTCHA:

Cancel Editing help (opens in new window)