The intention of this thread is to post harder to find COVID-19 related data that might be useful from an engineering perspective.
This is a "Put data where your mouth is" kinda thing.
Please do not post project-specific discussion here, there is enough Jerry-Springer-Grade controversy in a multitude of other threads already.
I hope this topic might be respected as a
Safe haven where tangible data reigns supreme. So, please put data where your mouth is or troll elsewhere. Seriously, no offense intended.
Please include a short excerpt and/or context when appropriate.
My contribution, for example:Some medical professionals have used SARS-CoV as a model for COVID-19 since formal studies of the new virus were unavailable and AFAIK remain unavailable. Attached is a professional study I found on ways to effectively kill the SARS virus that includes numbers and graphs that engineers might find useful. If you have more up-to-date information or find a similar study, please post! See attached PDF.
Excerpt:2.3. UV light treatment
Ultraviolet light (UV) treatment was performed on 2 ml aliquots of virus (volume depth = 1 cm) in 24-well plates (Corning Inc., Corning, NY). The UV light source (Spectronics Corporation, Westbury, NY) was placed above the plate, at a distance of 3 cm from the bottom of the wells containing the virus samples. At 3 cm our UVC light source (254 nm) emitted 4016 μW/cm2 (where μW = 10−6 J/s)...
3.1. Effect of radiation on the infectivity of SARS-CoV
... Exposure of virus to UVC light resulted in partial inactivation at 1 min with increasing efficiency up to 6 min (Fig. 1A), resulting in a 400-fold decrease in infectious virus. No additional inactivation was observed from 6 to 10 min. After 15 min the virus was completely inactivated to the limit of detection of the assay, which is ≤1.0 TCID50 (log10) per ml.
2.5. Heat treatment of virus
We incubated 320μl aliquots of virus in 1.5 ml polypropylene cryotubes using a heating block to achieve three different temperatures (56, 65 and 75 ◦C).
3.2. Effect of heat treatment on the infectivity of SARS-CoV...
... At 65 ◦C, most of the virus was inactivated if incubated for longer than 4 min (Fig. 2B). Again, some infectious virus could still be detected close to the limit of detection for the assay, after 20 min at 65 ◦C. While virus was incompletely inactivated at 56 and 65 ◦C even at 60 min, it was completely inactivated at 75 ◦C in 45 min (Fig. 2C). Surprisingly, at both 56 and 65 ◦C the virus was inactivated at early time points but at 60 min a small amount of virus was detected.
Related project thread(s) if applicable:(Will edit post later to link related discussion/project threads)
Related open questions not effectively answered in this specific study:- What is the relationship between UVC intensity and required exposure time (for other intensity levels)?
- Is UVC more/less/same as effective on water/air/aerosol/surface dwelling viruses?
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