The number of Americans diagnosed with the novel coronavirus is now at least 70.
There have been 85,406 cases in at least 60 countries and 2,924 deaths.
Here is how the situation is unfolding on Saturday (all times eastern).
9:42 p.m. Illinois announces another case
Health officials in Illinois announced a presumptive positive case of coronavirus, the state's third case. The test, done locally with a Centers for Disease Control and Prevention test, will be sent to headquaters in Atlanta to confirm -- the policy adopted by the agency as local tests get up and running.
The patient has been hospitalized and isolated. A press release by Cook County Public Health did not specify whether the person had a travel history or contact with another infected person to explain the positive test.
The previous two Illinois patients both have already made a full recovery, officials said.
8:32 p.m. 4th case reported in Santa Clara
The Santa Clara, California, County Public Health Department said it has identified a fourth case of coronavirus, saying it is an adult woman "who is a household contact of the third Santa Clara County case."
The woman does not have symptoms and has not been hospitalized, according to officials.
The third Santa Clara County case was announced Friday and is a case of so-called "community spread," meaning the person had no travel history or known contact with infected individuals.
4:15 p.m. Washington cases at long-term care facility
Washington state is looking into a number of illnesses at a long-term care facility, health officials confirmed in a news conference.
Two of the presumptive cases of COVID-19 confirmed Friday took place at a long-term care facility in Kirkland, Washington.
One of the cases is in a health care worker in her 40s at the facility, who is in satisfactory condition at Overlake Hospital. Another, a woman in her 70s, is in serious condition at Evergreen Hospital.
"We're aware of a number of individuals associated with long-term care facility who are reportedly ill with respiratory symptoms or pneumonia and we're in the process of investigating this situation as an outbreak," Dr. Jeff Duchen, the public health officer for King County.
The person who died in Washington was not associated with the long-term care facility, officials said.
3:45 p.m. CDC briefing updates Washington cases
The number of cases diagnosed in the U.S. has risen to 22, according to a CDC telebriefing Saturday afternoon.
"Sadly this includes the first reported death in the U.S. from COVID-19, as well as the first reported case of a heath care worker and a first possible outbreak in a skilled nursing facility," National Center for Immunization and Respiratory Diseases Director Nancy Messonnier said in the telebriefing. "This brings to 22 the number of cases in the U.S. that have been detected by our public health systems."
Messonnier tried to reassure the public the risk is low, though she said they expected to see more cases in the U.S.
"Most people in the U.S. will have little risk of immediate exposure to the virus," she said.
2:20 p.m. Washington state Gov. Jay Inslee releases statement after coronavirus death
Washington state Gov. Jay Inslee released a statement on the death of an individual in the state from coronavirus.
"It is a sad day in our state as we learn that a Washingtonian has died from COVID-19. Our hearts go out to their family and friends. We will continue to work toward a day where no one dies from this virus," Inslee said in the statement.
"In partnership with the Washington State Department of Health, the Washington State Department of Emergency Management and local and community health partners, we are strengthening our preparedness and response efforts. I am committed to keeping Washingtonians healthy, safe and informed."
2:06 p.m. President Trump confirmed the first known death overnight from coronavirus
The president confirmed the first known death from COVID-19 in a press conference on Saturday. According to the president, the victim was a woman in her 50s. The CDC later clarified it was a man in his 50s.
"We have 22 patients in the United States currently that have coronavirus. Unfortunately, one patient passed away overnight," Trump said. But as ABC News confirmed, the latest number is 66 cases of coronavirus in the U.S.
"Healthy individuals should be able to fully recover," he added.
1:06 p.m. 1st known US death from coronavirus confirmed
The first known death in the United States from coronavirus has been confirmed. According to health officials in Washington State, there has been one death from COVID-19 in Kings County, Washington, and new cases. Officials will provide an update during a press conference on Saturday afternoon.
12:02 p.m. New York to start using its own test for coronavirus
New York State will begin using its own tests for coronavirus, after getting approval from the U.S. Food and Drug Administration, according to a statement from New York Gov. Andrew Cuomo.
"When I spoke to Vice President Pence, I urged him to approve New York State's Coronavirus test — we just received word that our test has been approved by the FDA. New York State will begin testing immediately at Wadsworth Lab," the governor said via the statement.
"This approval will expedite wait time and improve New York's ability to more effectively manage the Coronavirus situation as it unfolds."
“We believe this policy strikes the right balance during this public health emergency,” said FDA Commissioner Stephen M. Hahn, M.D. in a statement. “We will continue to help to ensure sound science prior to clinical testing and follow-up with the critical independent review from the FDA, while quickly expanding testing capabilities in the U.S. We are not changing our standards for issuing Emergency Use Authorizations. This action today reflects our public health commitment to addressing critical public health needs and rapidly responding and adapting to this dynamic and evolving situation.”
11:39 a.m. UConn orders students studying abroad to return to the US
The University of Connecticut has cancelled all official travel to Italy and notified its Study Abroad program participants there to return as soon as possible to the United States. UConn had already decided to cancel all official travel to China and South Korea, based on recommendations from the CDC.
The university currently has more than 300 students participating in overseas academic programs in 29 nations, including a handful in South Korea and 88 in Italy, all of whom are returning to UConn.
Students returning from overseas will be provided online and remote learning to complete their academic requirements, according to a statement from UConn.
"The health and safety of our UConn students and employees is our highest priority. Please rest assured that working in collaboration with our state and local health departments, we feel prepared to respond to any cases of COVID-19 that might present themselves on our campuses or at UConn Health," the statement read.
11:20 a.m. Ecuador gets 1st coronavirus case
Ecuador has confirmed its first case of coronavirus according to a statement from Catalina Andramuño Zeballos, Ecuador’s minister of public health.
"The patient arrived in Ecuador from Spain, at the time of her arrival, she did not present any symptoms. The patient presented fever and general malaise, so she was taken to a hospital. The tests were done and she tested positive for COVID-19," the statement read.
The female patient is currently housed in an Intensive Care Unit and is in critical condition. Her prognosis is "reserved," according to Zeballos' statement.
6:31 a.m Washington state high school student tests postive
Health officials in Snohomish County, Washington, said the student became ill Monday with a fever, body aches and a headache. He was seen at two different clinics in the county, however, as the student felt better, he attempted to return to Jackson High School on Friday.
Coronavirus test results for the student, officials said, then came back "presumptive positive," and the student returned home before attending class.
"The individual is currently in home isolation and is doing well," Dr. Chris Spitters, interim health officer for the Snohomish Health District, said at a press conference Friday.
Spitters said the student did not travel to areas associated with coronavirus outbreaks, nor did they have known contact with someone diagnosed with the virus. This means the student is the fourth known U.S. case of community spread, which means a person who is diagnosed with a virus without having known contact with an area or person associated with the virus.
The school district, health officials said, has notified students and staff that may have had close contact with the infected student. Most of them will be quarantined at home for 14 days and the school will be sanitized over the weekend and be closed on Monday.
The student was the second person in the state diagnosed with COVID-19 Friday. A woman in her 50s returned from traveling in Daegu, South Korea, on Sunday, Feb. 23. She returned to work on Tuesday, where she had symptoms by the end of the day, according to Dr. Jeff Duchin, health officer for Public Health Seattle & King County.
A majority of the more than 2,300 positive coronavirus cases in South Korea have been linked to a secretive religious sect in the city of Daegu.
Duchin said the woman's COVID-19 test results came back positive on Thursday.
"Given the extent of global spread, we expect to identify more individuals with COVID-19 in Washington," Washington state Health Officer Dr. Kathy Lofy said in a statement Friday.
The coronavirus, which the World Health Organization has declared a global health emergency, has led to 2,924 deaths, among more than 85,000 cases globally.
Oregon school employee on Friday was diagnosed with a case of coronavirus with an unknown origin. That person joined two others in California who were previously diagnosed with COVID-19 through community spread this week.
In the U.S., there are 66 patients diagnosed with the novel coronavirus, most of which are from those repatriated from the quarantined Diamond Princess cruise ship that docked off the coast of Japan. The Centers for Disease Control and Prevention lists 62 confirmed cases; four "unconfirmed" patients tested positive in their states and those results need to be confirmed by the CDC before being included in its numbers.
In California, the city of Costa Mesa won a battle against the federal government Friday night when it withdrew its request to transfer infected coronavirus patients from the Diamond Princess to a quarantine facility in the town.
"This is a victory for the citizens of Costa Mesa and Orange County," Costa Mesa Mayor Katrina Foley said in a statement Friday night. "But the government has not promised not to place future infected persons there, so the battle is not over."
Without much warning, and no input, last week, the city said it learned people with COVID-19 would be transferred to a soon to be designated quarantine facility. It quickly filed suit to halt the transfers.
"We continue to be troubled by the lack of information from the agencies we all need to trust to keep us safe," Foley said. "While the risk of infection is low, this is an international public health emergency and we need answers."
ABC News' Timmy Truong, Morgan Winsor and Alexandra Faul contributed to this report.