Selangor Journal
A report in the journal Health Affairs found that US communities that mandated the use of face masks in public saw an ongoing decline in the spread of Covid-19. — Picture by REUTERS

Study shows face coverings in public helps mitigate spread of Covid-19

WASHINGTON, Aug 4 — US communities that mandated the use of face masks in public saw an ongoing decline in the spread of coronavirus, reported Xinhua news agency based on a study reported by CNN on Monday.

After five days of mask mandates, the daily coronavirus growth rate slowed by just under 1 per cent, while after 21 days, the growth rate slowed by about 2 per cent, researchers from the Department of Health Management and Policy at the University of Iowa College of Public Health reported in the journal Health Affairs.

Between April 8 and May 15, governors of 15 US states and the mayor of Washington, DC signed orders to place mask mandates in public. The researchers studied changes in the daily county-level Covid-19 growth rates between March 31 and May 22.

The researchers also projected the number of averted Covid-19 cases with the mandates for face mask use in public by comparing actual cumulative daily cases with daily cases predicted by a model if none of the states had enacted the public face cover mandate at the time they did.

The model estimates suggested that 230,000 – 450,000 cases may have been averted by May 22 due to these mandates.

— Bernama

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