https://abs.twimg.com/emoji/v2/... draggable="false" alt="⚠️" title="Warning sign" aria-label="Emoji: Warning sign"> @MIT& #39;s Dr. Lydia Bourouiba warns: “pathogen-bearing droplets of ALL sizes can travel 23-27 feet.”

She also warns: “droplets that settle along the trajectory can contaminate surfaces”—and “residues or droplet nuclei” may “stay suspended in the air for HOURS.”https://abs.twimg.com/emoji/v2/... draggable="false" alt="😳" title="Flushed face" aria-label="Emoji: Flushed face">

#COVID19 #masks

Bourouiba fears @WHO& #39;s current guidelines are “overly simplified” and “may limit the effectiveness of the proposed interventions” against #coronavirus.

“There’s an urgency in revising the guidelines currently being given by the [WHO] and the [ @CDCgov]. https://nypost.com/2020/03/31/coronavirus-could-travel-27-feet-stay-in-air-for-hours-mit-researcher/">https://nypost.com/2020/03/3...

"The rapid international spread of #COVID19 suggests (current assumptions) may not accurately reflect what actually occurs w/respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread" of #coronavirus. https://jamanetwork.com/journals/jama/fullarticle/2763852?resultClick=1">https://jamanetwork.com/journals/...

Dr. Bourouiba, an expert in the dynamics of coughs and sneezes: "A 2020 report from #China demonstrated that #SARSCoV2 virus particles could be found **in the ventilation systems** in hospital rooms of patients with #COVID19."https://abs.twimg.com/emoji/v2/... draggable="false" alt="💥" title="Collision symbol" aria-label="Emoji: Collision symbol">

#coronavirus #COVID19 https://jamanetwork.com/journals/jama/fullarticle/2763852?resultClick=1">https://jamanetwork.com/journals/...

Dr. Bourouiba& #39;s research (published in @JAMA_current) strongly suggests:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="▶️" title="Right-pointing triangle" aria-label="Emoji: Right-pointing triangle">Healthcare workers may be at an even HIGHER risk for exposure to #coronavirus, than previously thought
https://abs.twimg.com/emoji/v2/... draggable="false" alt="▶️" title="Right-pointing triangle" aria-label="Emoji: Right-pointing triangle">6-foot #PhysicalDistancing may not be sufficient
https://abs.twimg.com/emoji/v2/... draggable="false" alt="▶️" title="Right-pointing triangle" aria-label="Emoji: Right-pointing triangle"> #Masks may be necessary https://twitter.com/DrDenaGrayson/status/1245044631332585476?s=20">https://twitter.com/DrDenaGra...

These data strongly suggest that EVERYONE should wear #masks outside home, but healthcare workers & people at high-risk for serious #COVID19 need them MOST.

Given the global shortage of #masks/other #PPE, Trump must invoke the #DefenseProductionAct NOWhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="‼️" title="Double exclamation mark" aria-label="Emoji: Double exclamation mark"> https://twitter.com/DrDenaGrayson/status/1245044631332585476?s=20">https://twitter.com/DrDenaGra...