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Scientific evidence for mask wearing

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Based on this YouTube video's total view count of 165K views and industry-standard rates, the estimated total earning is $116 - $331 through ad revenue. Historical data is not yet available to calculate daily, weekly, or monthly averages.

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Explore Scientific evidence for mask wearing with 165,464 views, 4,919 likes, and 2,542 comments. Experience the impact of this video content that has captured audience attention.

Masks and hamsters https://www.foxnews.com/health/wearing-face-mask-reduce-coronavirus-transmission-75-percent-study-shows https://fightcovid19.hku.hk/hku-hamster-research-shows-masks-effective-in-preventing-covid-19-transmission/ https://jamanetwork.com/journals/jama/fullarticle/2763852 Hong Kong Rate transmission through respiratory droplets or airborne particles dropped up to 75% using masks. Public mask wearing effectiveness, huge,ā€ (Dr. Yuen Kwok-yung) Transmission can be reduced by 50 percent, especially when masks are worn by infected people Universal masking = 80% will significantly flatten the curve https://www.who.int/news-room/q-a-detail/q-a-coronaviruses Linda Bourouiba JAMA Sneeze (10-30 m/s), 7 – 8 m or 23-26 feet Cough 5 - 6 metres or 19 feet, Breath 2 metres or 7 feet Masks, droplets come out of the side, reduces range Background Dichotomous classification between large vs small droplets, or droplets vs aerosol Arbitrary droplet diameter cutoffs, from 5 to 10 μm Host-to-host transmission as droplets or aerosol routes Rapid international spread of COVID-19, using arbitrary droplet size cutoffs may not be accurate Possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease. Recent work Exhalations, sneezes, and coughs, mucosalivary droplets Multiphase turbulent gas cloud Continuum of droplet sizes Droplets can survive for minutes in clouds Payload of pathogen-bearing droplets A hot and moist gas cloud Ambient environment (temperature, humidity, and airflow) Residues or droplet nuclei that may stay suspended in the air for hours Ambient environment (temperature, humidity, and airflow). China (2020), COVID-19 found in ventilation systems in hospital rooms of infected patients Implications World Health Organization recommendations 3-foot (1-m) Centers for Disease Control, 6-foot (2-m) separation. May underestimate the distance Mask efficacy as source control depends on the ability of the mask to trap or alter the high-momentum gas cloud emission with its pathogenic payload.

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