This has come up a lot, for example I was involved in discussions with Delhi and Seoul airport about installing a UV disinfector for baggage handling. We couldn’t get good evidence in favour, whereas the evidence for ventilation was strong. It might be useful in very clean contexts, or changing rooms, or where ventilation/hand washing is not possible. A prime concern is that UV depends on line-of-sight, and sufficient time and proximity to the UV source.
I think there is evidence that wind or ventilation is highly effective both in hospital and domestic/public settings ( see findings tab of covidinfo.info, staff safety section ) as long as not with air lower than 40% relative humidity.
Are you sure hand washing, bleach/cleaning, humidity control and maybe room ionisers wouldn’t be more reliable, effective and cheaper, perhaps in combination with ventilation?
Also, for those with high prevalence deficiencies,secondary prophylaxis with Zn, Se, D3 etc and co-factors for absorption from gut (Mg) or into cells (quercetin) could be very cost-effective, as it’s already recommended for other health reasons, especially daily vitamin D.
Considering just one of those, humidity, here are two papers and a podcast on the role of humidity in preventing infection and (surprisingly) reducing severity:
Generally, with COVID19 and its virus, whenever an article is confident about a single technical or medical fix, I have found it worth being skeptical, and interrogating the data, and comparing to other options, especially if they seem boring, unglamorous, hard work or expensive by comparison.
This has come up a lot, for example I was involved in discussions with Delhi and Seoul airport about installing a UV disinfector for baggage handling. We couldn’t get good evidence in favour, whereas the evidence for ventilation was strong. It might be useful in very clean contexts, or changing rooms, or where ventilation/hand washing is not possible. A prime concern is that UV depends on line-of-sight, and sufficient time and proximity to the UV source.
I think there is evidence that wind or ventilation is highly effective both in hospital and domestic/public settings ( see findings tab of covidinfo.info, staff safety section ) as long as not with air lower than 40% relative humidity.
Are you sure hand washing, bleach/cleaning, humidity control and maybe room ionisers wouldn’t be more reliable, effective and cheaper, perhaps in combination with ventilation?
Also, for those with high prevalence deficiencies, secondary prophylaxis with Zn, Se, D3 etc and co-factors for absorption from gut (Mg) or into cells (quercetin) could be very cost-effective, as it’s already recommended for other health reasons, especially daily vitamin D.
Considering just one of those, humidity, here are two papers and a podcast on the role of humidity in preventing infection and (surprisingly) reducing severity:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7142681/
https://www.medrxiv.org/content/10.1101/2020.07.11.20147157v2
https://www.bbc.co.uk/programmes/m000mk37
Generally, with COVID19 and its virus, whenever an article is confident about a single technical or medical fix, I have found it worth being skeptical, and interrogating the data, and comparing to other options, especially if they seem boring, unglamorous, hard work or expensive by comparison.