Five of the six were from King county, the most populous in the state and home to Seattle, a city of more than 700,000 people. The sixth victim was from Snohomish county, officials said.
“The risk for all of us of becoming infected will be increasing," said Jeff Duchin, a health officer in King County.
“Although most of the cases will be mild or moderate, the infection can cause serious illness and there's a potential for many people to become ill at the same time."
The state reported four new cases, three from the same nursing home, taking the total number of US cases to more than 90 — about half of which were people repatriated from either China or a virus-stricken cruise ship off Japan.
Dow Constantine, the top official in King County, said his administration was in talks to purchase a motel in which to place people who required isolation, adding: “We have to move to a new stage in the fight to contain, mitigate and manage this outbreak."
Earlier in the day, New York's governor warned it was “inevitable" that the virus would spread in the global financial hub after its first confirmed case was detected in a health care worker who had visited Iran.
“There is no doubt that there will be more cases. This is New York — we're a gateway to the world," Andrew Cuomo told reporters.
“People are going to test positive, not just one or two or three or five, there will be many who test positive," he added.
Cuomo said the 39-year-old woman who tested positive at the weekend had mild symptoms and was recovering in isolation at home. Her husband is however expected to test positive as well.
He added that the Manhattan resident had been “very aware of her situation" and had taken a private car to her home from the airport on Tuesday.
“She did textbook everything right. We don't believe she was contagious on the airplane or in the car," he said.
In Washington, President Donald Trump met with leading pharmaceutical companies at the White House to discuss efforts to develop a coronavirus vaccine.
“Progress being made!" Trump tweeted before the talks.
Also on Monday, the US surgeon general warned that wearing a face mask could actually increase the risk of infection.
“Folks who don't know how to wear them properly tend to touch their faces a lot and actually can increase the spread of coronavirus," Jerome Adams told Fox News.
Globally, more than 3,000 people have died as a result of the virus, the vast majority of them in China. Nearly 90,000 people have been infected, with cases registered in more than 60 countries.
Source: AFP
