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08-09-2020, 08:32 PM | #42121 |
In Search of a Life
Join Date: Jul 2009
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It definitely isn’t a reason to not shut down bars for sure I agree. They just aren’t pandemic proof
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Posts: 81,361
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08-09-2020, 10:40 PM | #42122 |
Ain't no relax!
Join Date: Sep 2005
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More confidence that outdoor sunshine is a great deterrent..
Susceptibility of SARS-CoV-2 to UV Irradiation Highlights • SARS-CoV-2 is highly susceptible to irradiation with ultraviolet light • High viral loads of 5 *106 TCID50/ml SARS-CoV-2 can be inactivated in 9 minutes by UVC irradiation • UVC irradiation represents a suitable disinfection method for SARS-CoV-2 Abstract The coronavirus SARS-CoV-2 pandemic became a global health burden. We determined the susceptibility of SARS-CoV-2 to irradiation with ultraviolet light. The virus was highly susceptible to ultraviolet light. A viral stock with a high infectious titer of 5 × 106 TCID50/ml was completely inactivated by UVC irradiation after nine minutes of exposure. The UVC dose required for complete inactivation was 1048 mJ/cm2. UVA exposure demonstrated only a weak effect on virus inactivation over 15 minutes. Hence, inactivation of SARS-CoV-2 by UVC irradiation constitutes a reliable method for disinfection purposes in health care facilities and for preparing SARS-CoV-2 material for research purpose. [...] Discussion In the present study, we demonstrated that SARS-CoV-2 could effectively be inactivated by UVC irradiation, even at high viral titers, whereas UVA-irradiation was much less effective. These data are in line with previous reports where other coronaviruses e.g. SARS-CoV-1 were shown to be susceptible to UVC irradiation 5, 6, 7. Viral stocks with titers of 1 × 106 TCID50/ml of SARS-CoV-1 could be almost completely inactivated after 6 minutes of UVC-irradiation, corresponding to a UVC dose of 1446 mJ/cm2 5. In our study, the emitted dose required for a complete inactivation of SARS-CoV-2 was 1048 mJ/cm2 after 9 minutes of exposure. A similar dose of 1 J/cm2 was also required to inactivate a viral load of 1 * 106 TCID50 H1N1 influenza virus 7. UV light disinfection is chemical free and thus a suitable method for applying in healthcare facilities to disinfect healthcare equipment 4. Most recently, a protocol for the disinfection of personal protective equipment (PPE) including filtering face pieces from health care workers described the potential use of ultraviolet light to inactivate SARS-CoV-2 6. Taken together, we demonstrated that UV irradiation is a highly effective method to inactivate the new corona virus SARS-CoV-2, even at the higher viral load levels that are found in research laboratories e.g. in cell-culture supernatants or in diagnostic material taken from the respiratory tract of COVID-19 patients. |
Posts: 47,601
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08-09-2020, 11:21 PM | #42123 | |
'Tis my eye!
Join Date: Aug 2000
Location: Chiefsplanet
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Quote:
This thread was destroyed several days ago. Don’t kid yourself. |
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Posts: 100,022
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08-09-2020, 11:43 PM | #42124 | |
Time Keeps On Slipping
Join Date: Sep 2004
Location: Overland Park
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Posts: 27,294
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08-10-2020, 12:00 AM | #42125 | |
Future NBA Finals MVP
Join Date: Apr 2006
Location: Earth
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Quote:
It will be really be telling what happens in the fall and winter with kids going back to school. We'll be able to see if asymptomatic spread (children in school) will infect their older teachers and parents. My guess is they will. |
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Posts: 46,181
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08-10-2020, 12:11 AM | #42126 |
MONTANA #19
Join Date: Mar 2005
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I just saw that the HS in Georgia that made the news with week with the pic of a shoulder to shoulder hallway has shut down and gone to online learning after 9 people came down with Covid 19.
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Posts: 4,220
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08-10-2020, 12:28 AM | #42127 | |
Banned!
Join Date: Sep 2000
Location: NOT Columbia, MO 65201
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08-10-2020, 12:30 AM | #42128 | |
Sometimes it's black and white
Join Date: Nov 2004
Location: California
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Quote:
Even if this is no more than a toned down DC thread, those of us who rarely or never go over to DC, still appreciate it. |
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08-10-2020, 06:23 AM | #42129 |
Supporter
Join Date: Feb 2005
Location: Olathe, Ks
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Posts: 128,154
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08-10-2020, 07:15 AM | #42130 |
In Search of a Life
Join Date: Jul 2009
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They need to look at recycling air and turning it over in schools via HVAC and such, rather than shields and all that crap.
Put Hepa filters all over the place. |
Posts: 81,361
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08-10-2020, 07:20 AM | #42131 | |
New and Improved
Join Date: Mar 2002
Location: Springfield, Mo.
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Quote:
How bout NO! |
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Posts: 21,160
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08-10-2020, 07:25 AM | #42132 |
Please squeeze
Join Date: Jul 2003
Location: Clinton, MO
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So we have had approximately 338k kids test positive for Covid and just in the last two weeks around 100k. We could have predicted that?
I think we can stop with the notion kids can't get this or spread it to others. The upside is very few deaths but at least here in the US alot of kids are raised by their grandparents or older parents who they will pass this on to and they will get it and die. |
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08-10-2020, 07:47 AM | #42133 | |
Supporter
Join Date: Feb 2005
Location: Olathe, Ks
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Quote:
Sent from my SM-G950U using Tapatalk |
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Posts: 128,154
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08-10-2020, 07:48 AM | #42134 |
MVP
Join Date: Aug 2017
Location: Austin, Texas
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Teachers unions are now demanding that either more filtering be done through the HVAC systems or all rooms have fans put in them to draw air out through open windows to reduce the amount of internal air recirculated in the room
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08-10-2020, 07:50 AM | #42135 | |
In Search of a Life
Join Date: Jul 2009
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Posts: 81,361
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