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https://vox.com/science-and-health/21546014/mask-mandates-coronavirus-covid-19As it turns out, North Dakota, which until recently didn’t require masks, had the lowest mask-wearing rate in the country in October, according to survey data. It also had 171 coronavirus cases per 100,000 as of November 6, the highest per capita rate of any state in the county, according to the Centers for Disease Control and Prevention (CDC).
North Dakota is not the only state lagging in a mask policy in the throes of a major outbreak, however: Eight of the top 10 states that saw the highest new cases per capita in October did not have a widespread mask mandate, as the chart below shows. (Several of these Great Plains and Midwestern states were spared significant outbreaks of the virus until the fall.)
On November 8, Utah implemented a mask mandate, as new daily Covid-19 cases continue to rise in the state and across the country. Some other states have implemented or tightened mandates since then, including Iowa and North Dakota.