成都哪所医院看下肢静脉曲张好(成都小隐{静脉炎}的治疗) (今日更新中)

The excitement of two COVID-19 vaccines with more than 90 percent efficacy is undeniable.In November, both Pfizer and Moderna announced its scientists had developed vaccines with efficacy at or near 95 percent, but scientists are warning these vaccines are not the "silver bullet" to ending the pandemic.“We don’t want to give the public the impression that there’s an emergency use authorization and these vaccines become available in a small amount in December and we can go back to our pre-pandemic behavior,” said William Moss, executive director of the International Vaccine Access Center at Johns Hopkins.In June, the FDA released its vaccine guidelines, saying it would consider emergency use authorization for any vaccine testing with at least 50 percent effectiveness, so there is a reason for celebration, according to Moss, but only after certain questions about the vaccine are answered.Dr. Anthony Fauci has said the initial vaccines will prevent symptoms in those who become infected, rather than kill the virus itself. Moss says that means immunized people might be able to spread COVID-19 to others.He also wonders how long immunization will last. One year? Three years? Will booster doses be needed? They're all careful considerations that will only emerge once one is put into play, according to Moss.“It’s obviously tragic that the [COVID] cases are occurring that quickly, but it does help a vaccine trial because otherwise you just have to wait that much longer for samples to come in,” said Moss.The vaccine process has innovated how scientists and researchers approach these types of situations, however, according to Moss.In traditional vaccines, a small dose of the virus is injected into the body so the immune system can create antibodies. In the COVID-19 vaccine, though, both Moderna and Pfizer have used what is called messenger RNA (mRNA) where the virus’ genetic code is injected into the body so it can instruct cells on what antibodies to produce. Scientists say this way is faster, safer, and can create a stronger immune response as people are not exposed to the virus.“I suspect that if this all goes well and these vaccines are safe and continue to demonstrate 90 to 95 percent efficacy, we’re going to see other vaccines of a similar type,” said Moss. 2298

The FDA issued an emergency use authorization for a saliva-based coronavirus test that has been used to identify COVID-19 cases by NBA players. Leading officials are calling the test a “game-changer.”The SalivaDirect test is said to be both rapid in its findings, and inexpensive. Yale said it doesn’t hope to commercialize the test, rather increase the country’s testing capabilities.“Widespread testing is critical for our control efforts. We simplified the test so that it only costs a couple of dollars for reagents, and we expect that labs will only charge about per sample. If cheap alternatives like SalivaDirect can be implemented across the country, we may finally get a handle on this pandemic, even before a vaccine,” said Nathan Grubaugh, a scientist with Yale Public Health.Yale scientists say that the nasal samples are less invasive than swabbing, but are equally as accurate.“This is a huge step forward to make testing more accessible,” said Chantal Vogels, a Yale postdoctoral fellow. “This started off as an idea in our lab soon after we found saliva to be a promising sample type of the detection of SARS-CoV-2, and now it has the potential to be used on a large scale to help protect public health. We are delighted to make this contribution to the fight against coronavirus.”The test earned praise from members of the White House coronavirus task force.“The SalivaDirect test for rapid detection of SARS-CoV-2 is yet another testing innovation game-changer that will reduce the demand for scarce testing resources,” said Assistant Secretary for Health and COVID-19 Testing Coordinator Admiral Brett P. Giroir, M.D. “Our current national expansion of COVID-19 testing is only possible because of FDA’s technical expertise and reduction of regulatory barriers, coupled with the private sector’s ability to innovate and their high motivation to answer complex challenges posed by this pandemic.” 1926

The conversation around wearing different protective gear is expanding. In particular, face shields.Teachers recently asked the nation’s top infectious disease expert, Dr. Anthony Fauci, about it and he said, “if you can get one, it’s not a bad idea.”Fauci went on to say that a shield shouldn't necessarily be worn in place of a mask, but more parents are considering the option for kids.“For some of the kids, a mask just isn't going to work. And in those cases, a face shield can be considered, but I think it needs to be understood that that’s not the default,” said Dr. Preeti Malani with the Infectious Diseases Society of America.Infectious disease experts say there just isn't enough data yet on how much protection a face shield provides.One study found it did significantly reduce the number of inhaled droplets, but cloth masks are also about protecting others. Shields were not as sure to do that as well.“If you're wearing a shield, the respiratory secretions that might be coming from your mouth or nose are not going to be as well contained,” said Malani.In the health care setting, face shields are used primarily to prevent splashing in the eyes.Malani offered this advice about finding the right shield.“It’s important that it’s long enough to really protect the whole face and that it wraps around fully and that it fits well up at the forehead,” said Malani.Companies, including Apple, Nike, General Motors, and John Deere have all started producing face shields.In a JAMA Network open viewpoint, it was pointed out that face shields have some advantages over masks. They can be reused indefinitely, they are easier to clean, they are comfortable, and they help prevent touching of the face. 1719

The coronavirus pandemic has had a big impact on businesses of all kinds, restaurants and retailers alike are closing permanently and others are doing what they can to financially survive.That also means it could be a good time for consumers looking for specific items to save some money.The website rather-be-shopping.com compiled a list of 13 items that have become cheaper during the pandemic.Items like clothing for the whole family. Retailers like Macy’s, Stein Mart, Ann Taylor, and many more are closing anywhere from several stores to most of them. That could mean deep discounts during liquidation sales.Those looking for a home or want to refinance will find low mortgage rates right now. Mortgage rates have hit an all-time low.Gas is about 50 cents cheaper nationally than it was in the summer of 2019. Maybe it’s time for a road trip or long drive and save on fuel prices.That also contributes to low shipping costs. Many online sites are offering no or low shipping costs right now.In time for school to start, technology is cheaper and many places are offering discounts on laptops and electronic devices and headphones that can be used for at-home learning. There are also 16 states with "no sales tax" weekends to encourage shopping. 1259

The conversation around wearing different protective gear is expanding. In particular, face shields.Teachers recently asked the nation’s top infectious disease expert, Dr. Anthony Fauci, about it and he said, “if you can get one, it’s not a bad idea.”Fauci went on to say that a shield shouldn't necessarily be worn in place of a mask, but more parents are considering the option for kids.“For some of the kids, a mask just isn't going to work. And in those cases, a face shield can be considered, but I think it needs to be understood that that’s not the default,” said Dr. Preeti Malani with the Infectious Diseases Society of America.Infectious disease experts say there just isn't enough data yet on how much protection a face shield provides.One study found it did significantly reduce the number of inhaled droplets, but cloth masks are also about protecting others. Shields were not as sure to do that as well.“If you're wearing a shield, the respiratory secretions that might be coming from your mouth or nose are not going to be as well contained,” said Malani.In the health care setting, face shields are used primarily to prevent splashing in the eyes.Malani offered this advice about finding the right shield.“It’s important that it’s long enough to really protect the whole face and that it wraps around fully and that it fits well up at the forehead,” said Malani.Companies, including Apple, Nike, General Motors, and John Deere have all started producing face shields.In a JAMA Network open viewpoint, it was pointed out that face shields have some advantages over masks. They can be reused indefinitely, they are easier to clean, they are comfortable, and they help prevent touching of the face. 1719

来源：资阳报