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The American Academy of Pediatrics (AAP), American Federation of Teachers (AFT), National Education Association (NEA) and AASA, The School Superintendents Association 174

TAMPA, Fla. — Air conditioning units may be contributing to the spread of COVID-19, especially in the southern part of the United States, according to a Harvard epidemiologist.Dr. Edward Nardell is a professor in the Departments of Environmental Health and Immunology and Infectious Diseases at the Harvard T.H. Chan School of Public Health. He's done in-depth research on how air conditioning units contribute to the spread of airborne infections.Nardell said air conditioning can help airborne viruses spread in three ways.First, people go inside to cool down, when you are much safer outdoors, Nardell said. Now, we're seeing more people indoors because of the high heat and humidity, specifically in the southern states like Florida.The second problem is that air conditioning brings in very little outside air, according to Nardell. While this isn't a major problem inside your own home, it can be especially problematic in corporate settings."It just isn't economically possible to bring in outside air, recirculate it and dehumidify it," he said.Lastly, he said when people are indoors, you're often not spaced out safely as you would be outdoors."You are not socially distanced as much, but you're re-breathing the same air that someone else just exhaled," Nardell said. "We call it rebreathed air fraction, and if someone is infectious, often asymptomatic, you're going to be rebreathing their small particles."Nardell also said air conditioning units can generate air currents that can carry large particles even further, similar to what researchers found contributed to the spread of the novel coronavirus disease in an air-conditioned restaurant in Guangzhou, China, involving three family clusters.On the Department of Homeland Security's website, this tool can be used to estimate how long the virus would be expected to remain stable while airborne.Now, the Centers for Disease Control and Prevention is recommending restaurants increasing the distance between tables and improving ventilation.The use of germicidal lamps, a technology that Nardell said is almost 100 years old, has been proven effective in protecting against tuberculosis infection and is already in use in some settings to fight COVID-19.The lamps are set up to shine horizontally, high in the room where sterilization is needed. Air currents, stirred in part by warmth from human bodies, circulate up to the ceiling, where the ultraviolet light kills floating pathogens, and then back down again.This technology, Nardell said, is not only proven, but it can also be deployed cheaply and easily in a number of settings as society reopens.This story was originally published by Lauren Rozyla at WFTS. 2691

Stocks fell sharply Monday, dragged down by reports of trouble at Apple and Facebook.The Dow closed down 396 points and the Nasdaq tumbled 3%.Facebook stock fell nearly 6% as the company continues to deal with the fallout from a New York Times article that detailed Facebook's reaction to political scrutiny and its Cambridge Analytica scandal. CEO Mark Zuckerberg has reportedly adopted a more aggressive, "war"-like style, according to the Wall Street Journal.Alphabet was also down 4%. It is now down 20% from its peak in July, placing it in bear market territory.Early in the day, stocks fell on news that Apple's newest line of phones may not be selling as well as Apple or its investors had hoped.Apple's stock fell once more after the Wall Street Journal reported that Apple has cut orders for its iPhone XR, iPhone XS and iPhone XS Max.The new iPhones, which Apple unveiled in September, cost more than previous versions. The 9 iPhone XR is the least expensive new iPhone, but it costs more than last year's cheapest model, the iPhone 8.The iPhone XS Max can cost up to ,449. The higher prices -- without many more features -- could be driving customers to keep their current phones longer or buy last year's models.Apple declined to comment about the Journal story or broader concerns about iPhone demand.Shares of Apple fell 5% and have now plunged about 20% from the all-time high it hit a few months ago, when Apple (AAPL) was worth more than trillion.The stock ended a 5-day losing skid on Friday after an analyst at Morgan Stanley suggested that the supplier concerns are overdone.Apple, which is a member of the Dow, was hurting the blue chips too.Several makers of chips and other components used in iPhones have warned of soft sales and profit in recent weeks, citing sluggish demand for higher-end smartphones.To that end, shares of Apple suppliers, such as Qorvo (QRVO), Broadcom (AVGO), Cirrus Logic (CRUS) and even Apple's key Anrdoid phone rival Samsung were all lower Monday too. Samsung also makes chips for iPhones.Investors have other reasons to be concerned about the future of Apple -— as well as other big tech companies for that matter.Apple CEO Tim Cook said on the "Axios on HBO" show Sunday that he expects Washington to crack down on tech firms in the wake of high-profile privacy scandals, such as the Cambridge Analytica problems that have plagued Facebook (FB)."I am not a big fan of regulation," Cook said to Axios on HBO. "I'm a big believer in the free market. But we have to admit when the free market is not working. And it hasn't worked here. I think it's inevitable that there will be some level of regulation."HBO, like CNN, is part of WarnerMedia, which is owned by AT&T (T). 2745

The birthday party for a 5-year-old Davenport, Iowa boy turned into one he’ll never forget when several officers from the Davenport Police Department accepted his invitation to attend.Jackie Martin took to Facebook to share the story of her son, Brayden, and his love for police officers. According to Martin, he loves everything about them, so it shouldn’t come as much of a surprise when Brayden decided he wanted to have a police officer-themed birthday party this year.Brayden personally delivered invitations to the police station in hopes of getting to see a squad car.But what he got in return was so much more.Over the course of the day, seven different officers made their way to Brayden’s party. Detective Donnie Pridemore even brought a pin-on badge with him and Brayden was pinned an official junior officer of the Davenport Police Department.“They went above and beyond to make my son feel like part of the team and really made today so special and allowed us the opportunity to continue to show Brayden the importance of respecting the law and those who uphold it,” said Martin, “they may not wear capes but today, they were definitely the heroes.”Check out the full post from Jackie: 1206

That was fast. Wall Street's enthusiasm for the US-China trade truce has completely vanished.The Dow Jones sunk nearly 800 points on Tuesday, nearly a three percent drop.The S&P 500 declined 2.5%, while the Nasdaq tumbled 3%.Big tech stocks fell sharply. Apple (AAPL), Amazon (AMZN) and Alphabet (GOOGL) lost more than 3% apiece.The selloff wipes out Monday's 288-point jump on the Dow. That rally had been fueled by relief over the ceasefire between the United States and China on the trade front.But investors are quickly realizing that the US-China trade war is not over. The tariffs already put in place remain. And new tariffs could be implemented if the two sides fail to make progress."People are still very concerned about the trade war," said Dan Suzuki, portfolio strategist at Richard Bernstein Advisors. "Financial markets are increasingly showing signs of fear of a recession."President Donald Trump did not help Wall Street's trade war worries on Tuesday. Trump said that he would "happily" sign a fair deal with China but also left open the possibility that the talks will fail."President Xi and I want this deal to happen, and it probably will," Trump tweeted. "But if not remember... I am a Tariff Man."Those words aren't likely to bolster confidence among investors already worried about the negative consequences of the trade war. Steel and aluminum tariffs have lifted raw material costs and caused disarray in supply chains. And uncertainty about trade policy makes it very difficult for companies to make investment decisions.Investors have also grown very worried in recent days about fluctuations in the bond market. The gap between short and long-term Treasury rates has narrowed significantly this week. Before almost every recession, the yield curve has inverted, meaning short-term rates are higher than long-term ones.The gap between the 10-year and two-year Treasury yields dropped on Tuesday to the smallest since just before the Great Recession. And the less closely watched gap between three and five-year Treasury yields inverted on Monday.The tightening yield curve reflects fears about a growth slowdown and concerns about whether the Federal Reserve is raising interest rates more quickly than the economy can handle. Fed chief Jerome Powell gave a speech last week that investors interpreted as signaling the central bank could slow its rate hikes. However, there is a debate over whether Powell really was telegraphing a sudden change.Barry Bannister, head of institutional equity strategy at Stifel, predicts the Fed will pause its rate hikes because it has already made monetary policy too tight. He pointed to the slowdown in the housing market caused by higher mortgage rates."It's playing with fire to be too tight and risk an inversion because you don't know what the outcome will be," Bannister told reporters on Tuesday. "Even if the Fed pauses, they may have already done too much."A flattening yield curve and slowing economic growth hurt the profitability of banks.The financial sector was the second-worst performer in the S&P 500 on Tuesday. Bank of America (BAC), Morgan Stanley (MS) Citigroup (C) and Wells Fargo (WFC) declined more than 4% apiece.But Suzuki cautioned that the markets could be overreacting. He pointed to strong corporate profits and the fact that the yield curve has not yet inverted."We don't see signs of an impending recession," Suzuki said. "There is a widening gap between market fear of a deterioration in the fundamentals and the actual fundamentals themselves." 3558