Citing a surge in coronavirus cases driven by the Delta variant, officials in King County in Washington — which includes Seattle and its suburbs — said Thursday that it would require masks be worn at outdoor events that attract more than 500 people.
The mandate begins Tuesday, and it applies to residents 5 years of age and older, regardless of their vaccination status. The county is also strongly recommending masks for everyone over 5 years old in other outdoor settings where people cannot remain at least six feet apart from people outside their household.
County health officials said that hospitals are the most crowded since the pandemic began, and that health care workers were overburdened.
As of Wednesday, the seven-day average of new cases across Washington State has reached a new state record, with 3,465 a day, an increase of 19 percent in the last two weeks, according to a New York Times database. The data also shows that current hospitalizations have grown 35 percent over the same time period, to a daily average of 1,753, and new deaths have jumped 72 percent, to a daily average of 24.