枣庄儿童痫病医院(山东省癫痫病医院简介) (今日更新中)

Sen. Kirsten Gillibrand officially jumped in the 2020 presidential race on Sunday by declaring her Democratic candidacy with a campaign video titled "Brave Wins."The New York Democrat launched an exploratory campaign in January, announcing it on CBS' "The Late Show with Stephen Colbert," and has spent the past two months traveling to key states.Toward the end of the 381

SEATTLE, Wash. – Expired food is regularly being sold on Amazon and some are concerned the company isn’t doing enough to stop it.CNBC looked into the distribution of products past their sell-by dates and found customers complaining about several items, including baby formula, granola bars, coffee creamer, chips and other junk foods. Some of the products sold were more than a year past their expiration date. While most expired items aren’t being bought from Amazon itself, 488

Scans of the lungs of the sickest COVID-19 patients show distinctive patterns of infection, but so far those clues offer little help in predicting which patients will pull through. For now, doctors are relying on what’s called supportive care that’s standard for severe pneumonia.Doctors in areas still bracing for an onslaught of sick patients are scouring medical reports and hosting webinars with Chinese doctors to get the best advice on what works and what hasn’t.One thing that’s clear around the globe: Age makes a huge difference in survival. And one reason is that seniors’ lungs don’t have as much of what geriatrics expert Dr. Richard Baron calls reserve capacity.“At age 18, you have a lot of extra lung capacity you don’t use unless you’re running a marathon,” explained Baron, who heads the American Board of Internal Medicine. That capacity gradually declines with age even in otherwise healthy people, so “if you’re an old person, even a mild form can overwhelm your lungs if you don’t have enough reserve.”Here’s what scientists can say so far about treating those who become severely ill.HOW DOES COVID-19 HARM THE LUNGS?The new coronavirus, like most respiratory viruses, is spread by droplets from someone’s cough or sneeze. The vast majority of patients recover, most after experiencing mild or moderate symptoms such as fever and cough. But sometimes the virus makes its way deep into the lungs to cause pneumonia.Lungs contain grapelike clusters of tiny air sacs called alveoli. When you breathe, oxygen fills the sacs and passes straight into blood vessels that nestle alongside them. Pneumonia occurs when an infection -- of any sort, not just this new virus -- inflames the lungs’ sacs. In severe cases they fill with fluid, dead cells and other debris so oxygen can’t get through.If other countries have the same experience as China, about 5% of COVID-19 patients could become sick enough to require intensive careHOW DOES THAT DAMAGE APPEAR?Doctors at New York’s Mount Sinai Health System analyzed 121 chest CT scans shared by colleagues in China and spotted something unusual.Healthy lungs look mostly black on medical scans because they’re full of air. An early infection with bacterial pneumonia tends to show up as a white blotch in one section of one lung. Pneumonia caused by a virus can show up as hazy patches that go by a weird name -- “ground glass opacities.”In people who get COVID-19 pneumonia, that haze tends to cluster on the outside edge of both lungs, by the ribs, a distinctive pattern, said Dr. Adam Bernheim, a radiologist at Mount Sinai.As infection worsens, the haze forms rounder clusters and gradually turns more white as the air sacs become increasingly clogged.HOW TO TREAT THE PNEUMONIA?There are no drugs so far that directly attack the new coronavirus, although doctors are trying some experimentally, including an old malaria treatment and one under development to treat Ebola.“The best treatment we have is supportive care,” said Dr. Aimee Moulin, an emergency care physician at the University of California Davis Medical Center.That centers around assistance in breathing when the oxygen levels in patients’ blood starts to drop. For some people, oxygen delivered through a mask or tubes in the nose is enough. More severely ill patients will need a breathing machine.“The goal is to keep the person alive until the disease takes its course” and the lungs begin to heal, explained Mount Sinai’s Dr. Neil Schachter.The very worst cases develop an inflammatory condition called ARDS -- acute respiratory distress syndrome — that floods the lungs with fluid. That’s when the immune system’s attempt to fight infection “is going crazy and itself attacking the lung,” Baron explained.Many things besides the coronavirus can cause the condition, and regardless of the cause, it comes with a high risk of death.WHAT ELSE IS IMPACTED?Severe pneumonia of any sort can cause shock and other organ damage. But in a webinar last week, Chinese doctors told members of the American College of Cardiology to watch for some additional problems in severe COVID-19, especially in people with heart disease. The worst off may need blood thinners as their blood starts to abnormally clot, and the heart itself may sustain damage not just from lack of oxygen but from the inflammation engulfing the body.Another caution: The sickest patients can deteriorate rapidly, something a hospital in Kirkland, Washington, witnessed.Of 21 patients who needed critical care at Evergreen Hospital, 17 were moved into the ICU without 24 hours of hospital admission, doctors reported last week in the 4639

Royal Caribbean has canceled a cruise ship's stop in San Juan, Puerto Rico, due to widespread protests against Gov. Ricardo Rosselló. 145

Presidential candidate Beto O'Rourke reiterated his support for a mandatory gun-buyback program of assault-style rifles on Thursday and said, "Hell, yes, we're going to take your AR-15, your AK-47.""We're not going to allow it to be used against our fellow Americans anymore," the former Texas congressman said during the third Democratic presidential debate, hosted by ABC News."If the high-impact, high-velocity round, when it hits your body, shreds everything inside of your body because it was designed to do that so that you would bleed to death on a battlefield ... when we see that being used against children," O'Rourke said. He recalled talking to a woman in Odessa, Texas, who had watched her 15-year-old daughter bleed to death after she was shot by a man wielding an AR-15 late last month.O'Rourke's comments come in the wake of a string of mass shootings in the United States, including in his hometown of El Paso, where 22 people were gunned down at a Walmart in August. O'Rourke unveiled a proposal weeks after that shooting calling for a national gun registry, a nationwide gun licensing system and the mandatory buyback of assault-style rifles as part of his plan to curb gun violence and the rise of white nationalism.He received praise from his fellow Democratic contenders on Thursday night for his actions following the shooting in El Paso."The way he handled what happened in his hometown -- to look in the eyes," former Vice President Joe Biden said.Fellow Texan Julián Castro praised O'Rourke for "how well he has spoken to the passion and the frustration and the sadness" after the shooting."And Beto, God love you for standing in the middle of that tragedy," said Sen. Kamala Harris of California.Sen. Amy Klobuchar of Minnesota said, "I so appreciate what the congressman's been doing."Sen. Cory Booker of New Jersey needled O'Rourke later, saying he was sorry it had taken the El Paso shooting for O'Rourke to embrace the position Booker already held, backing a mandatory buyback and national registration.O'Rourke's support for gun licensing is a reversal from May, when he was asked about a similar proposal from Booker and said it "may be too far." 2191

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