The anti-fog glasses that many people wear in the U.S. to protect against the sun’s UV rays have become a flashpoint of the Zika virus pandemic, with many states and cities banning the use of the glasses.
Some of the latest data out of Washington shows that the Zika outbreak is spreading rapidly.
A study released Wednesday by the Centers for Disease Control and Prevention found that the number of cases in the state of Washington has soared to nearly 2,000 from more than 400 in October.
The number of people diagnosed with Zika in the Washington area has soared since early December, according to the state’s Department of Health.
The new data also shows that in the area around Seattle, more people are reporting symptoms of Zika than they were last month, and that more than 5,000 new cases of Zika have been reported.
“It is clear that we are in an unprecedented situation,” said Tom Steyer, a billionaire environmentalist who has pledged to spend more than $1 billion to combat the Zika crisis.
“We need a national response, and we need it now,” he said.
The CDC has said that the virus is spreading at a rate that is unprecedented.
Experts say it is likely that the first cases will appear in the Pacific Northwest and Southeast U.K. in the next week.
In California, there has been a spike in the number and severity of Zika-related hospitalizations.
A California health official said Wednesday that the state has recorded a total of 1,837 cases of the virus, a number that was down from 2,849 in late March.
California is home to more than 2 million people, and more than half of them are infected with Zika.
The Associated Press contributed to this report.