A northwest Oregon resident has tested positive for coronavirus with no known history of travel to countries severely affected by the outbreak and no known contact with infected individuals, state health officials said Friday.

The case, in Washington County, marks the third case of unknown origin in the United States and indicates that the virus is spreading. It is also the first coronavirus case in Oregon.

The adult patient, whose age and gender were not disclosed, is at Kaiser Permanente Westside Medical Center in Hillsboro, officials said.

Oregon Health Authority Director Patrick Allen said the case is considered “presumptive” while the state awaits confirmation of test results from the Centers for Disease Control and Prevention. The patient was recently at a local elementary school, Allen said.

Earlier Friday, health officials in Santa Clara County, Calif., said a 65-year-old resident also had a case of coronavirus with unknown origin — becoming the second U.S. case of community transmission. The nation’s first community-transmission patient was a woman in Solano County, about 90 miles away.

The World Health Organization on Friday raised its risk assessment of the coronavirus to “very high,” citing the risk of spread and impact. WHO officials said their assessment — the highest level short of declaring a global pandemic — doesn’t change the approach countries should take to combat the virus but should serve as a “wake up” and “reality check” for countries to hurry their preparations.

The U.S. stock market fell for the seventh straight day amid fears of global economic damage from the escalating outbreak, and the Federal Reserve took the unusual step of issuing a statement to reassure Americans.

“The fundamentals of the U.S. economy remain strong. However, the coronavirus poses evolving risks to economic activity,” Fed Chair Jerome H. Powell said. “The Fed is closely monitoring developments and their implications for the economic outlook. We will use our tools and act as appropriate to support the economy.”

Here are the latest developments:

  • The Trump administration pushed back on criticism of its handling of its coronavirus response, playing down the threat the disease poses even as more news emerged about the spread of the virus both abroad and at home.
  • A Department of Homeland Security employee who returned from travel to China was told by her supervisor to report to her workplace in early February in apparent violation of a mandatory 14-day coronavirus quarantine period, according to complaints filed Friday by the union that represents the woman’s co-workers.
  • Japan’s Hokkaido island — where Olympic marathons are due to take place this summer — declared a state of emergency as the country reported its 10th death. France and Germany reported upticks in infections, while South Korea’s tally surpassed 2,300, as more events were canceled and airlines said they would cut flights.
  • The U.S. government on Friday recommended avoiding nonessential travel to Italy as the number of coronavirus cases in the country surged to 800 and the death toll hit 21. Saudi Arabia said it was temporarily suspending entry to the country for the purposes of umrah and visiting Muhammad’s mosque. It is unclear when the restrictions will be lifted or how they could affect hajj.
  • The virus is now reaching into the heart of California’s Silicon Valley, home to some of the world’s largest technology companies — including Google, Apple and Tesla.
  • Fears that a possible coronavirus pandemic could tip the world economy into recession drove stocks to their worst weekly loss since the 2008 financial crisis.