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Page 159 - பல்கலைக்கழகம் ஆஃப் கொலராடோ கற்பாறை News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Do we need masks outdoors? Covid-19 experts in US weigh in

WASHINGTON (AFP) - It is a familiar sight in some US cities like Washington, New York and San Francisco: people walking on the street, riding bikes or sitting in parks with their masks on even when they are far away from others. Certain states, like Maine, have kept in place outdoor mask mandates for hiking trails and beaches. So where does the evidence lie? And is there any harm in public health measures that go beyond the science, or if people behave more cautiously than they need? Scientists have learned a lot about Covid-19 since the pandemic began. In terms of how it is transmitted, we now know surfaces are not a major vector, and heightened disinfection efforts are a misplaced use of time and resources.

Evidence of COVID-19 airborne transmission overwhelming say experts

1/1 A year into the COVID-19 pandemic and a growing number of scientists are calling for greater recognition of airborne transmission of the virus A new review article published in The Lancet has presented 10 key scientific reasons why SARS-CoV-2, the virus that causes COVID-19, is predominantly spread though the air. The research adds to a growing chorus of experts saying the evidence for airborne transmission is “overwhelming” and the sooner global health authorities admit this, the sooner more effective measures to better protect the public can be implemented. Perhaps one of the most vociferous debates over the past 12 months has been over exactly how most people catch COVID-19. As the pandemic spread across the globe in early 2020 the general perspective from most public health experts was that SARS-CoV-2 primarily spread by droplet transmission.

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