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Potential accuracy issues with a widely used coronavirus test could lead to false results for patients, U.S. health officials warned.The Food and Drug Administration issued the alert Monday to doctors and laboratory technicians using Thermo Fisher’s TaqPath genetic test. Regulators said issues related to laboratory equipment and software used to run the test could lead to inaccuracies. The agency advised technicians to follow updated instructions and software developed by the company to ensure accurate results.The warning comes nearly a month after Connecticut public health officials first reported that at least 90 people had received false positive results for the coronavirus. Most of those receiving the false results were residents of nursing homes or assisted living facilities.A spokeswoman for Thermo Fisher said the company was working with FDA “to make sure that laboratory personnel understand the need for strict adherence to the instructions for use.” She added that company data shows most users “follow our workflow properly and obtain accurate results.”The FDA said one possible problem was related to the incorrect use of equipment that rapidly spins samples in preparation for processing. The agency’s letter tells lab workers to follow new instructions developed by the company for this step.A second issue relates to the software used on Thermo Fisher’s testing platform. FDA said labs must upgrade the software to a new version.Dr. Albert Ko of Yale’s School of Public Health said the potential accuracy problems have “pretty serious implications” given that Thermo Fisher’s test is used widely both in the U.S. and around the world to screen for coronavirus.The FDA statement did not provide any details on how many test results may have been affected by the problem.Lab tests are the backbone of U.S. screening for coronavirus, accounting for more than half of the roughly 750,000 tests developed daily. The tests look for traces of coronavirus’ genetic material in nasal swabs taken from patients.Thermo Fisher’s test was granted emergency use by the FDA in mid-March. The test runs on a large, automated machine used in hospital, government and commercial labs to look for diseases such as HIV, hepatitis and flu.The FDA has used its emergency powers to OK more than 200 tests for coronavirus since February. No test is perfect and all are expected to give at least a small percentage of false negatives and false positives.___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content. 2656

President Donald Trump is upset with White House press secretary Sarah Sanders over her responses Wednesday regarding his alleged affair with porn star Stormy Daniels, a source close to the White House tells CNN.Daniels, whose legal name is Stephanie Clifford, filed suit against Trump this week alleging he hadn't signed a nondisclosure agreement that would have prevented her from discussing their alleged sexual affair.On Wednesday, Sanders told reporters that the arbitration was won "in the President's favor." The statement is an admission that the nondisclosure agreement exists, and that it directly involves the President. It is the first time the White House has admitted the President was involved in any way with Daniels."POTUS is very unhappy," the source said. "Sarah gave the Stormy Daniels storyline steroids yesterday."Trump's personal lawyer has said the President "vehemently denies" any sexual encounter between the two.  954

President Donald Trump is expected to announce Friday that the Treasury Department will impose new sanctions against North Korea.The sanctions, to be announced at the Conservative Political Action Conference, pertain to vessels and shipping, a person familiar with the matter tells CNN, declining to offer further details.News of the latest sanctions was first reported by Reuters.The sanctions will be announced while the President's daughter and senior adviser Ivanka Trump is in South Korea for the closing days of the 2018 Winter Olympics. She is scheduled to dine with the South Korean President Moon Jae-in at the Blue House Friday.  652

PORTLAND, Ore. — The mayor of Portland, Oregon, was tear gassed by federal agents late Wednesday as he stood with protesters at a fence guarding a federal courthouse. Mayor Ted Wheeler said it was the first time he'd been tear gassed and appeared slightly dazed and coughed as he put on a pair of goggles someone handed him. Earlier in the night, Wheeler was jeered as he tried to rally demonstrators who have clashed nightly with federal agents sent in by President Donald Trump to quell ongoing unrest in the city. "I think it's important for me as the mayor and the police commissioner to be out here where people are demonstrating, hear their concerns, not only about the federal government, but also about our local (government)," Wheeler said.Though Wheeler stood in solidarity with protesters on Wednesday night, he's faced criticism from protesters from deploying similar tactics against demonstrators prior to the arrival of federal agents.Wheeler was among 13 mayors of major U.S. cities to sign an open letter to the Trump administration Wednesday, asking that federal agents not be sent to deter crime. Federal agents have been occupying Portland since last week in support of an executive order President Donald Trump signed earlier this year to protect federal monuments and statues.According to KOIN-TV in Portland, Wednesday night marked the 55th straight night of protests against police brutality in the city. 1435

Praying for the two police officers that were shot tonight in Louisville, Kentucky. The Federal Government stands behind you and is ready to help. Spoke to @GovAndyBeshear and we are prepared to work together, immediately upon request!— Donald J. Trump (@realDonaldTrump) September 24, 2020 298

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