Drugmaker Moderna said Monday it is seeking emergency authorization in the United States and Europe to distribute its coronavirus vaccine after tests showed it is 94% effective.The U.S. biotechnology company’s request could mean that health workers will be able to inoculate patients against the virus as soon as mid-December with either of two coronavirus preventatives — Moderna’s or another equally successful test drug produced by the corporate tandem of Pfizer-BioNTech — if the companies win approval from drug regulators.Moderna said it conducted a 30,000-person clinical trial, and its results were on a par with the best pediatric vaccines.The drugmaker said that of the 196 volunteers who contracted COVID-19, 185 had received a placebo versus 11 who received the vaccine. Moderna reported 30 severe cases — all in the placebo group — including one COVID-19-related death. The Moderna and Pfizer requests for emergency use of their vaccines come as the number of coronavirus cases is surging in the U.S., where tens of thousands of new cases are being recorded daily.Health officials say they are especially worried about an even further spread of the virus because millions of people ignored warnings against traveling for last week’s Thanksgiving holiday and could travel again over the upcoming Christmas and New Year’s holiday weekends.Air travelers line up to go through a security checkpoint at Salt Lake City International Airport in Salt Lake City, Utah, Nov. 25, 2020.The U.S. has 4% of the world’s population but nearly a fifth of its recorded coronavirus deaths — more than 266,000 — the most in any country, according to Johns Hopkins University. Worldwide, the death toll has topped 1.46 million.Top U.S. health experts say 20 million Americans could get vaccine shots in the latter half of December, possibly with front-line health care workers targeted initially, followed by elderly people living in nursing homes. An advisory committee at the Centers for Disease Control and Prevention is meeting Tuesday to lay out the order in which Americans will be able to get vaccinated.Millions of people will likely be able to get one of the vaccines in the first months of 2021, although polls show that about four in 10 Americans say they will refuse to get a shot, either because they are opposed to vaccinations in general or are particularly wary of coronavirus inoculations.The U.S. Food and Drug Administration is considering the Pfizer vaccine on December 10, with consideration of Moderna’s a week later. In addition to seeking U.S. approval, Moderna said it would apply for conditional approval from the European Medicines Agency. 
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From instant coffee to Cheetos, packaged cookies and energy bars, the U.S. military helped invent many of the snacks Americans love to eat.    The effort accelerated during World War II, when military scientists needed to develop compact yet nutritional ways to feed the troops.   “There was a tremendous need for the military to develop modern rations, and it ended up not only inventing a bunch of new food processing techniques but putting in place a food science research system that exists to this day,” says food writer Anastacia Marx de Salcedo, author of “Combat-Ready Kitchen: How the U.S. Military Shapes the Way You Eat”. “Out of that came a lot of new techniques and food, and after the war, those were incorporated into snack and convenience foods.” Those new techniques include high pressure processing, which makes uncooked food safe to eat. The process is routinely used in packaged foods like guacamole, salsa and hummus. Cheetos, one of America’s favorite cheesy, crunchy snacks, are made possible by the dehydration process the military worked on to remove the water from cheese. That gave cheese both a longer shelf life and made it lighter to transport to troops overseas. Energy bars are a snack food that resulted from a long period of development to produce a small and nutritionally dense emergency ration.Military scientists discovered that pet food companies were working on a way to make the water level low enough to prevent bacteria and fungi from being produced, making the food safe. “Once they figured that out, they were able to keep foods moist and chewy at room temperature and with regular packaging,” Marx de Salcedo says. “And in fact, that tactic is not only used in energy bars, it’s used in the bakery aisle. If you go into a grocery store, and you see moist and chewy cookies, those are all that same technique that comes out of the military research.” The military also adopted a candy-coated chocolate snack found in Europe that service members could carry around in their pockets without the chocolate immediately melting. That’s how M&M candies were born. Today, some of the biggest military contractors continue to search for the perfect meltless chocolate that will be able to withstand extreme temperatures.  The Army hopes vacuum-microwave drying technology will allow them to put fruit and vegetables into rations. The vacuumed microwaved banana is about a third of its original size while still being springy and pliable. (Courtesy: US Army)The next known frontier in military food science has arrived in the form of mini-food that is shrunk to one-third of the normal size, resulting in foods that are small but still dense.  “They use microwave vacuum dehydration to reduce the water content of foods and what essentially that does is it miniaturizes the food so you get these little tiny carrots, but you can have a fresh carrot,” Marx de Salcedo says. “It still has the same amount of calories even though it’s small.” Whether American civilians will one day be packing miniature lunch boxes in order to lighten their load during their daily commute to work remains to be seen. 
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An electric “aero-ambulance” that is estimated to be faster, safer and quieter than a helicopter has been developed by researchers in Australia.  The aero ambulance is called Vertiia. It is an electric, vertical takeoff and landing aircraft designed to get patients to the hospital quicker and more safely.   It is set for commercial release in 2023, and developers say it will be the world’s most efficient aircraft of its type for passenger and “aeromedical transport.”   The transfer of patients in remote parts of Australia can be slow. Often, they must be driven to an airport by ambulance, transferred onto a plane, and then back into another ambulance for delivery to the hospital. Vertiia aims to take them from door to door. It is built to cruise at a speed of 300 kilometers per hour and travel 250 kilometers powered by electric batteries before needing to recharge. It is also designed to travel nonstop for more than 800 kilometers using hydrogen as an alternative fuel. The project is a collaboration between the University of Sydney, the startup company AMSL Aero and the charity CareFlight. Associate Professor Dries Verstraete is an aerospace engineer from the University of Sydney.   His team is working to increase the aircraft’s efficiency through its aerodynamic and structural design and reduce its operating costs.  “Aero ambulances work by taking off vertically and tilting the wing to horizontal, to tilt it back before they land,” he said. “The advantage of this concept is that they are flying efficiently like an aircraft, but they can still take off like a helicopter, and this allows us to reach more people in a shorter time and do that in a way that is safer than helicopters and also significantly quieter.” The project has received federal government funding of U.S. $2.2 million. Michael McCormack, Australia’s deputy prime minister, said it was “a revolution in aeromedical support.” Vertiia is currently flown by pilots, but researchers want to be able to fly it by computer in bad weather and other hazardous conditions.  
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