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Hours after Amazon instructed its employees to remove the short-video sharing app TikTok from their devices -- the company back stepped.The online retail giant says the email was sent in error and there is no change to amazon's policy regarding TikTok.In the email sent to employees Friday morning and obtained by CNN, Amazon said that due to "security risks, the TikTok app is no longer permitted on mobile devices that can access Amazon email."A TikTok spokesperson said Amazon "did not communicate to us before sending their email, and we still do not understand their concerns."Politicians say the app could undermine national security given its ties to China.Cybersecurity experts have been more cautious about that assessment.TikTok is owned by the world's most valuable startup, a Chinese company named Bytedance. 828

HARRISBURG, Pa. (AP) — President Donald Trump and rival Joe Biden have spent Labor Day diminishing each other's credentials on the economy and understanding of the American worker. Watch Trump's presser below:Labor Day typically marks the unofficial start to the fall campaign season as candidates accelerate their activity for the final sprint to Election Day. Biden was meeting with labor leaders and union workers in Pennsylvania while his running mate, Sen. Kamala Harris, campaigned in Wisconsin. Both are key swing states. WATCH Harris' roundtable below:Republican Vice President Mike Pence was in Wisconsin, too, while Trump held a White House press conference.This will mark Harris’ first trip to the state since accepting the party’s vice-presidential nomination. The New York Times reports that the senator will visit union workers and leaders as well as Black business people and pastors in Milwaukee. Labor Day typically marks the unofficial start to the fall campaign as candidates accelerate their activity for the final sprint.But Monday’s events are playing out this year against the backdrop of a pandemic that has upended campaigning, forcing much of the traditional activity online. 1209

GENEVA — The World Health Organization said European nations reported more than 700,000 new coronavirus cases last week — the highest-ever figure since the start of the pandemic.In a weekly briefing published Tuesday, WHO said weekly virus cases and deaths across Europe jumped by 34% and 16% respectively. Britain, France, Russia and Spain accounted for more than half of the new cases seen in the region.The organization noted that the number of new cases reported in Spain showed a “noticeable decline” in comparison to recent weeks. But in Poland, WHO said virus cases and deaths spiked by 93% and 104% respectively, and the government has tightened restrictions to try avoiding another lockdown.WHO Director-General Tedros Adhanom Ghebreyesus said this week that the agency understood the frustration people were feeling as the pandemic drags on but warned “there are no shortcuts and no silver bullets.”WHO described lockdowns a “last resort” when countries have no other options and urged officials to use more targeted methods to stop the virus. 1061

Greg Eubanks disappeared over the weekend, leaving his family frantic. Two days later, he was at home, safe.The 41-year-old had crashed his SUV around 3 a.m. Saturday in Oxon Hill, Maryland. The SUV went down an embankment and got stuck between the highway entrance and exit ramps, so his car wasn't visible from the road.Eubanks was hurt when he was thrown from the SUV. He was left laying at the bottom of the ravine with broken bones and a dead cell phone for two days and three nights. "He said he didn't think he was gonna make it," Tre Drew, Eubanks' cousin, said. "He heard several fire trucks passing, ambulance passing. He kept saying 'I know they're coming for me' and no one came for him."Eubanks' son, Greg Eubanks Jr., reported him missing Saturday, then drove around searching for his dad. "I was worried. I couldn't sleep. (I) rode around all day yesterday trying to find his car, just looking for any type of piece of evidence," the younger Eubanks said.A highway crew finally spotted Eubanks and his car while repairing a damaged guardrail on the Indian Head Highway. "He said it was the worst thing he's ever been through, and he has been through a lot," Drew said.Eubanks was taken to the hospital for treatment. His family says he is in good spirits and is expected to make a full recovery. Maryland State Police are investigating. 1419

Holidays will look different this year for many Americans, with dinners outside, social distancing, or passing on family gatherings altogether. But several companies developing rapid at-home COVID-19 tests are hopeful that won't be the case next year. The goal is to make inexpensive, easy-to-use COVID tests that can deliver results in minutes, just like a pregnancy test. "For people to feel comfortable to associate with friends or family, there needs to be a testing methodology ideally that can be performed at home," said Tony Lemmo, CEO of the manufacturing company BioDot.The company's technology is being used by over 70 manufacturers worldwide making COVID-19 antigen, antibody, and PCR tests. Their automated platforms dispense nanoliter/picoliter amounts of reagent onto the tests accurately and fast.Lemmo says just one of their systems can support the production of roughly 100 million COVID-19 tests per year, helping to make high-volume production possible.“We knew we were going to be called on by customers to manufacture more equipment to provide them the ability to manufacture more tests," said Lemmo. To meet customer demand, BioDot increased staffing and built a new facility, compressing production time from months to weeks. The FDA recently authorized the first rapid at-home test that can deliver results in 30 minutes, eliminating the need for a lab to test the sample. But the molecular single-use test will only be available to patients with a doctor's prescription who are suspected of being infected with COVID-19.Companies developing tests hope the FDA will soon authorize another at-home testing tool: the rapid antigen test.These inexpensive tests provide results within minutes, and companies developing them say millions could be sold without a doctor's referral.“From what we’re hearing, it’s really just a matter of possibly months before there’s at least sufficient data to be able to support an at-home use of a test like an antigen test," said Lemmo.Lemmo says if authorized by the FDA, manufacturers could make millions of these tests in a matter of months. But antigen tests are less accurate, and the FDA wants to ensure they'll be simple enough for people to use at home. There are also concerns over how the data will be reported to health authorities. “I think any at-home testing or massive rollout of a test into the communities needs to be done very carefully and with a lot of education around it," said Clinical Lab Director Melissa Miller. Dr. Miller is a professor of pathology and laboratory medicine at the University of North Carolina Chapel Hill and Medical Director for the Clinical Microbiology Lab for the Medical Center.She worries the inaccuracies of these tests could eventually lead the public to lose trust in all testing. “Even at 98 percent specificity, which is very, very high. That means you’re going to have a false positive two out of every 100. If you started testing a hundred million people, this is millions of people who have a false-positive test," said Dr. Miller. She says this could lead to healthy people isolating and missing work or school unnecessarily, and false-negative results could give people a false sense of security. “These rapid antigen tests were pushed out to skilled nursing facilities; this is a very high-risk patient population. This is actually where you want a very accurate test," said Dr. Miller. She says it’s unclear how well antigen tests detect the virus in asymptomatic patients but agrees more data is needed to figure that out.“It might make more sense for K-12 schools, or even college settings, where there’s less risk for a poor outcome if you have a false positive or a false negative," said Dr. Miller. But with a growing demand for convenient at-home testing, manufacturers are hopeful that in the months ahead, the FDA will soon open the door to new solutions. 3889

来源：资阳报