Thread by @ejustin46

𝗬𝗲𝘀, 𝗔𝗜𝗥 𝗖𝗛𝗔𝗡𝗚𝗘 𝗽𝗲𝗿 𝗛𝗢𝗨𝗥 (𝗔𝗖𝗛) 𝗿𝗲𝗱𝘂𝗰𝗲𝘀 𝗽𝗼𝘁𝗲𝗻𝘁𝗶𝗮𝗹 𝗘𝗫𝗣𝗢𝗦𝗨𝗥𝗘 𝘁𝗼 𝗔𝗜𝗥𝗕𝗢𝗥𝗡𝗘 𝗦𝗔𝗥𝗦-𝗖𝗢𝗩-2

Thanks to @DavidJoffe64
for this study

This review analyzes data from 93 field studies that ... tandfonline.com/doi/full/10.10…

2) ...sampled the air and surfaces in hospitals and homes for the presence of SARS-CoV-2.
The studies were conducted between 2020 and 2022 around the world.
Results show that residences had higher virus concentrations and more frequently detected the virus compared to hospitals.

3) Factors like air changes per hour (ACH), which represents ventilation, likely contribute to this difference. Hospitals are required to meet minimum ACH standards, while most buildings do not.

4) Within settings, primary rooms where patients spent most time had higher concentrations than secondary rooms visited less. However, virus detection was similarly likely in residential primary rooms. In hospitals, secondary areas like corridors less commonly tested positive.

5) When grouped by ACH, virus concentrations and detection rates generally decreased as ACH increased from 0-12 changes per hour, Above 12, the trends were less clear possibly due to limited data.

6) In conclusion, this analysis of diverse field studies provides evidence that increased ventilation through higher ACH can help reduce potential exposure to airborne SARS-CoV-2.

Thanks for reading 🙏
FYI
@FLAHAULT @C_A_G0101