Rhinovirus thread
This study tested how rhinovirus transmits. (Dick et al. 1987.)
Briefly, ppl infected w/ rhinovirus played cards for 12 hours w/ uninfected ppl. Some of the uninfected were stopped from touching face. Rate of attack the same.
They then stopped all air exchange between the groups: ZERO infected.
[originally posted August 15, 2020]
#aerobiology #TransmissionOfPathogens #airborne #pathogens #COVIDIsAirborne
In experiment D, the one in which they stopped air exchange between the groups, the people played cards in separate rooms.
They GREATLY contaminated the cards, pens, pencils, etc. that the people used. However, even though very contaminated, nobody caught a cold from handling the items.
[still written Aug 2020]
I've never found any direct support for fomite.
Just studies showing viruses can remain on surfaces and transfer to fingers etc.
Certainly nothing quantifying dose, infection, & real world conditions as the anti-aerosol ppl demand.
Just a note.
2003 "The Common Cold". Lancet.
Talking about colds and viruses that cause them.
Three routes. We know this.
1. Hand.
2. Little aerosols.
3. Big aerosols (droplets) and a "direct hit" (I like that phrase).
Says flu small aerosol, and rhino hand. Cites 2 studies as examples for rhino
FN 35 is a study of mode of rhino.
It supports the "concept" that fomite effective. It's hard to show someone actually got infected through fomites. What the studies tend to show is how long virus lasts on surfaces, etc., and that can be transferred to fingertips.
Rhinovirus cause of lower respiratory illness and severe illness.
Now I'm just guessing here, but it's #Airborne?
And #IndoorAirQuality measures like #FilteredAir or #UVSterilisation would offer big protection?
Gee, I'm beginning to wonder why #Workplace measures against airborne #RespiratoryDiseases were not put in place 30 years ago?
What's been the position of #IndustryGroups, #PublicHealth and #Unions over the decades?
I chatted with a guy working in a #LithiumProcessing plant.
#LithiumDust is dangerous.
But they've got the science, engineering and procedures worked out so that #EveryoneCanGoHomeSafely.
But offices, shops , education and hospitality can not be organised to protect us from serious #RespiratoryDiseases?
Jonathan
skua