Thread by @masknerd

[1] Inactivation of Airborne SARS-CoV-2 by 222 nm far-UVC irraditation
Hiroki Kitagawa, Hiroshima University Hospital
#ICFUST2023

[2] Wild Type SARS-COV-2 aerosolized into a large 18 liter chamber, similar to Brenners chamber at Columbia. They arrived at a Log 10 reduction of 1.1 cm^2/mJ

[3] Also 222nm inactivation was used in solution, and K=0.73, but in a more dilute condition k=1.04. On dried surface they got k=1.05

[4] Inactivation was very similar to all types, aerosol, surface and liquid. Discussion of others work and how it compares, liquid sample difference from absorption in liquid. Basically how you make solution may affect inactivation. Same issue with aerosols too?

[5] Note these are log 10 reduction. To convert to log e base = ln(10) * k

[6] Question, is aerosol likely to have less impact to absorption from solution. Answer: Yes likely less impact