Research review determines aerosol-generating procedures that require enhanced personal protective equipment — ScienceDaily

Autopsy, airway suctioning and cardiopulmonary resuscitation are among the list of medical procedures that pose a risk of spreading COVID-19 from a patient to their health-care provider by creating aerosols, according to new research published in the journal BMJ Open Respiratory Research by an international team of experts including occupational health, preventive medicine and infectious disease specialists.

The team, led by University of Alberta medicine professor Sebastian Straube, carried out a systematic review of public health guidelines, research papers and policy documents from around the globe to determine which procedures are classified as aerosol-generating.

“What we sought to do was to understand which procedures generate aerosols and therefore require a higher grade of personal protective equipment,” said Straube, who also heads the preventive medicine division of the Faculty of Medicine & Dentistry.

“Where there is 80 per cent agreement from a number of different source documents, we are reasonably confident

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Finding Martian Microbes Could Require Digging Miles Underground

NASA’s Perseverance rover is flying to Mars as you read this sentence. It will land there in February 2021 and set aside rocks with promising signs of ancient life, for a future mission to pick up for analysis.

But what about current life on Mars? Are microbes embedded in the ice caps? Perhaps they are sheltering in water runoff in some crater? Or, as some scientists suggest, is life buried miles underground — a difficult spot for us to search, at best?

A new study is trying to figure out ways to hunt for life on worlds that have little or no running water at the surface. One easy answer, in theory, is to look to water reserves underground — and we are pretty sure Mars

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