If this is real -- does anyone know what substance they may be spraying and/or what the purpose is?
@BogochIsaac @MackayIM @aetiology @bevpaterson @balajis @DanielleFong @VirusWhispererhttps://twitter.com/WLaowai8/status/1225809833837789186 …
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Replying to @TerryLerona @BogochIsaac and
70% ethanol is effective on viruses with a lipid membrane (coronaviruses, influenza viruses, paramyxoviruses {measles, mumps, parainfluenza viruses, etc.}, & even Ebola viruses. When alcohol evaporates, it dehydrates the viral particles & destroys the viral membrane.
1/23 replies 62 retweets 128 likes -
Replying to @VirusWhisperer @hbdchick and
That is completely incorrect. Evaporation has absolutely nothing to do with antimicrobial activity of alcohols. It's EXPOSURE of biological membranes and proteins to high concentration alcohols that destroys their structure. Oh, and membranes are NOT "dehydrated" by alcohols!
2 replies 2 retweets 9 likes -
Replying to @dklndt @VirusWhisperer and
isn't a concentrated alcohol solution hygroscopic, in addition to alcohol being able to denature proteins, etc. ? should pull water away. agree that "evaporation" is not the precise mechanism, but if it pulls water out and the solution evaporates, that is dehydration. semantics.
5 replies 0 retweets 3 likes -
Replying to @DanielleFong @VirusWhisperer and
BTW - no, 70% EtOH is not "hygroscopic" (definition of hygroscopic is "sucking water in" but below ~95% ethanolic solutions are stable. So yes, the effects are water-dependent but it's wrong to call them "dehydration" because "dehydration" = removal of water FROM something.
1 reply 0 retweets 2 likes
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