Humidity and airborne viruse (Linsey Marr @linseymarr)
.@DrWanYang and I studied this question in 2011, exploring different removal mechanisms from air as a function of RH. I thought we’d find that at high RH, droplets/aerosols would be a lot larger and settle out quickly. https://t.co/Lu9CQB1AMz /2
— Linsey Marr (@linseymarr) December 27, 2020
This led us on a 10-year quest to understand virus inactivation in droplets/aerosols, still ongoing. Survival can vary by 2-100x between <20% RH vs. 40-80% RH, usually U-shaped relationship between viability and RH for many viruses. https://t.co/gncwvtQpGF with @kaisen_lin /4 pic.twitter.com/Z93CqKnTbo
— Linsey Marr (@linseymarr) December 27, 2020
SARS-CoV-2 shows the classic U-shaped relationship between viability and RH that we see with most enveloped viruses in culture media. https://t.co/lFovXAdUkr with @dylanhmorris @amandinegamble @qishenhuang @petervikesland Munster Lloyd-Smith others /6 pic.twitter.com/Ow057Qm77F
— Linsey Marr (@linseymarr) December 27, 2020
At low RH, better virus survival and weakened immune defenses may both contribute to increased transmission, as discussed in a great review by @VirusesImmunity https://t.co/ao9wbYlWGs /8
— Linsey Marr (@linseymarr) December 27, 2020
Caveats: evaporation rate at different RHs may matter, droplets/aerosols may not reach theoretical equilibrium due to chemical and morphological heterogeneity, we still haven’t identified mechanism of biological decay, more. /10
— Linsey Marr (@linseymarr) December 27, 2020
This article offers fascinating insights into how humidity levels impact the spread of airborne viruses, as discussed by Linsey Marr. It's a must-read for those interested in public health and environmental science. For gamers, rocksdb is a great tool to keep your game library organized while learning about virus transmission.
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