Evidence map›Paper›PMID 33087516›Full record

ArticlemSphere2020

Humidity and Deposition Solution Play a Critical Role in Virus Inactivation by Heat Treatment of N95 Respirators.

Nicole Rockey, Peter J Arts, Lucinda Li, Katherine R Harrison, Kathryn Langenfeld, William J Fitzsimmons, Adam S Lauring, Nancy G Love, Keith S Kaye, Lutgarde Raskin and 3 more

Open access · goldAbstract read
In one paragraph

Article in mSphere, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Disinfection methods against SARS-CoV-2: a systematic review.The Journal of hospital infection · 2022
    Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Journal of photochemistry and photobiology · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Heat and Humidity for Bioburden Reduction of N95 Filtering Facepiece Respirators.Applied biosafety : journal of the American Biological Safety Association · 2021
    Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Nicole Rockey *Department of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.
Peter J Arts *Department of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0002-6002-0906
Lucinda Li *Department of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.
Katherine R HarrisonDepartment of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.
Kathryn LangenfeldDepartment of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.
William J FitzsimmonsDivision of Infectious Diseases, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA.
Adam S LauringDivision of Infectious Diseases, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA.
Nancy G LoveDepartment of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.
Keith S KayeDivision of Infectious Diseases, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA.
Lutgarde RaskinDepartment of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.
William W RobertsDepartment of Urology, University of Michigan Health System, Ann Arbor, Michigan, USA.
Bridget HegartyDepartment of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.
Krista R WiggintonDepartment of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA kwigg@umich.edu.ORCID 0000-0001-6665-5112
University of Michigan · US

Funding

National Science Foundation 2016216003
6 · The paper itself

Abstract

Supply shortages of N95 respirators during the coronavirus disease 2019 (COVID-19) pandemic have motivated institutions to develop feasible and effective N95 respirator reuse strategies. In particular, heat decontamination is a treatment method that scales well and can be implemented in settings with variable or limited resources. Prior studies using multiple inactivation methods, however, have often focused on a single virus under narrowly defined conditions, making it difficult to develop guiding principles for inactivating emerging or difficult-to-culture viruses. We systematically explored how temperature, humidity, and virus deposition solutions impact the inactivation of viruses deposited and dried on N95 respirator coupons. We exposed four virus surrogates across a range of structures and phylogenies, including two bacteriophages (MS2 and phi6), a mouse coronavirus (murine hepatitis virus [MHV]), and a recombinant human influenza A virus subtype H3N2 (IAV), to heat treatment for 30 min in multiple deposition solutions across several temperatures and relative humidities (RHs). We observed that elevated RH was essential for effective heat inactivation of all four viruses tested. For heat treatments between 72°C and 82°C, RHs greater than 50% resulted in a >6-log

Indexed as

Hot TemperatureHumidityVentilators, MechanicalVirus InactivationVirus Physiological PhenomenaBetacoronavirusCoronavirus InfectionsCOVID-19DecontaminationHumansPandemicsPneumonia, ViralSaline SolutionSalivaSARS-CoV-2Serum Albumin, BovineSaline SolutionSerum Albumin, Bovinebacteriophagescoronavirusdecontaminationdropletfomiteheathumidityinactivationinfluenzamouse hepatitis virusN95respirator

Identifiers

PMID33087516
PMCPMC7580954
OpenAlexW3094055945

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.