Mechanistic theory predicts the effects of temperature and humidity on inactivation of SARS-CoV-2 and other enveloped viruses

Environmental conditions affect virus inactivation rate and transmission potential. Understanding those effects is critical for anticipating and mitigating epidemic spread. Ambient temperature and humidity strongly affect the inactivation rate of enveloped viruses, but a mechanistic, quantitative theory of those effects has been elusive. We measure the stability of the enveloped respiratory virus SARS-CoV-2 on an inert surface at nine temperature and humidity conditions and develop a mechanistic model to explain and predict how temperature and humidity alter virus inactivation. We find SARS-CoV-2 survives longest at low temperatures and extreme relative humidities; median estimated virus half-life is over 24 hours at 10 °C and 40 % RH, but approximately 1.5 hours at 27 °C and 65 % RH. Our mechanistic model uses simple chemistry to explain the increase in virus inactivation rate with increased temperature and the U-shaped dependence of inactivation rate on relative humidity. The model accurately predicts quantitative measurements from existing studies of five different human coronaviruses (including SARS-CoV-2), suggesting that shared mechanisms may determine environmental stability for many enveloped viruses. Our results indicate scenarios of particular transmission risk, point to pandemic mitigation strategies, and open new frontiers in the mechanistic study of virus transmission.

Errataetall:

UpdateIn: Elife. 2021 Jul 13;10:. - PMID 33904403

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - year:2020

Enthalten in:

bioRxiv : the preprint server for biology - (2020) vom: 18. Dez.

Sprache:

Englisch

Beteiligte Personen:

Morris, Dylan H [VerfasserIn]
Yinda, Kwe Claude [VerfasserIn]
Gamble, Amandine [VerfasserIn]
Rossine, Fernando W [VerfasserIn]
Huang, Qishen [VerfasserIn]
Bushmaker, Trenton [VerfasserIn]
Fischer, Robert J [VerfasserIn]
Matson, M Jeremiah [VerfasserIn]
van Doremalen, Neeltje [VerfasserIn]
Vikesland, Peter J [VerfasserIn]
Marr, Linsey C [VerfasserIn]
Munster, Vincent J [VerfasserIn]
Lloyd-Smith, James O [VerfasserIn]

Links:

Volltext

Themen:

Preprint

Anmerkungen:

Date Revised 14.01.2022

published: Electronic

UpdateIn: Elife. 2021 Jul 13;10:. - PMID 33904403

Citation Status PubMed-not-MEDLINE

doi:

10.1101/2020.10.16.341883

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM316530328