Coronavirus could travel 27 feet, stay in air for hours: MIT researcher

Social-distancing guidelines to remain 6 feet from others could also be woefully inadequate, one scientist warns — saying the coronavirus can travel 27 feet and linger for hours.

MIT professor Lydia Bourouiba, who has researched the dynamics of coughs and sneezes for years, warns in newly published research that the present guidelines are supported outdated models from the 1930s.

Rather than the assumed safety of 6 feet, Bourouiba warns that “pathogen-bearing droplets of all sizes can travel 23 to 27 feet.”

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Her research, published within the Journal of the American Medical Association, also warns that “droplets that settle along the trajectory can contaminate surfaces” — and “residues or droplet nuclei” may “stay suspended within the air for hours.”

She notes a 2020 report from China that showed that “virus particles might be found within the ventilation systems in hospital rooms of patients with COVID-19.”

Bourouiba fears that the present guidelines are “overly simplified” and “may limit the effectiveness of the proposed interventions” against the deadly pandemic.

She says it’s particularly urgent for health care workers who, she argues in her report, face an “underappreciated potential exposure range” while treating the sick and dying.

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“There’s an urgency in revising the rules currently being given by the [World Health Organization] and therefore the [Centers for Disease Control and Prevention] on the requirements for protective equipment, particularly for the frontline health care workers,” Bourouiba told USA Today.

The World Health Organization — which suggests 3 feet is enough to stay safe — told USA Today it “welcomed” studies.

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“WHO carefully monitors emerging evidence about this critical topic and can update this scientific brief as more information becomes available,” WHO said during a statement to the paper.

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