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乌鲁木齐高级婴儿腿部静脉穿刺模型
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发布时间: 2025-05-31 15:33:17北京青年报社官方账号
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CAMPO, Calif. (KGTV) -- A homeowner was injured in a house fire that tore through a home in Campo Thursday afternoon. Cal Fire says the man received burns on his feet and shoulder. The injuries are considered minor. According to Cal Fire, the blaze started around 5 p.m. on the 33000 block of Highway 94. Video from Sky10 shows the home completely engulfed in flames. The fire in rural Campo quickly spread to nearby brush as it burned through the home, leaving nothing by the fireplace standing. Cal Fire says the fire burned less than half an acre. At this time, it’s unclear what started the fire. 609

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CHICAGO, Ill. – A study published this month suggests that by lessening the amount of virus you take in by putting on a mask, you may also lessen the likelihood of getting severely sick if you contract COVID-19.As the race to a safe and effective coronavirus vaccine heats up, new research about masks is changing the narrative on their importance.Last week, CDC Director Dr. Robert Redfield called face masks the most “powerful public health tool we have.”“I might even go so far as to say that this face mask is more guaranteed to protect me against COVID than when I take a COVID vaccine,” said Dr. Redfield.It was a stark change from CDC messaging early on in the pandemic that face coverings would most likely only protect those around you.“That was because there was a lot of data at that time that you can shed the virus at high rates from your nose and mouth even when you feel well,” said Dr. Monica Gandhi, an infectious disease doctor and professor of medicine at the University of California – San Francisco.She co-authored newly published research in the New England Journal of Medicine that theorizes that not only do masks protect the wearer but they may even reduce the severity of the coronavirus when someone gets infected.“We realized that we should be messaging more strongly masks protect you as the wearer and protects others,” said Dr. Gandhi.It theoretically works much like the early days of vaccines that used small amounts of viruses to illicit an immune response in the body. So, by wearing a mask, you are only exposed to lesser amounts of the virus, if any, potentially building up a sort of immunity.“The more virus you get inside, the sicker you are, the less virus you have, the less sick you are. This is called a dose response and it's true of many infections,” said Dr. Emily Landon, an epidemiologist and infectious disease specialist at University of Chicago Medicine.Gandhi says the theory has already been studied and proven in animals.“There was a hamster study that looked at the COVID-19 virus and the more that the hamsters were given, the more sick they got,” she said.Dr. Gandhi says it could also explain the why according to the CDC, 40% of coronavirus patients are asymptomatic.“Countries that mask well have lower rates of severe illness than countries that don't mask well. So, putting it all together, this is our hypothesis.”And while the research is still theoretical, if it bears out, experts say universal mask-wearing could drive up the proportion of people who get less sick from the virus if they do contract it. 2579

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CHICAGO, Ill. -- Scientists are continuing to develop new COVID-19 testing methods. Everything from throat swabs and saliva tests to breathalyzers are potential options. The federal government has ordered 150 million rapid antigen tests to help quickly identify cases in places like schools and disaster zones.Still, we're six months into the global pandemic and experts say we still need better and more frequent testing.Supply chain bottlenecks, long turnaround times and the looming flu season have many pharmaceutical companies scrambling for a better test.“There's been a great push and a lot of innovation has gone into developing new tests that might be able to be used in different scenarios,” said Dr. Emily Landon, an infectious disease specialist at University of Chicago Medicine.Abbott Laboratories’ sixth iteration of the COVID-19 test, known as “Binax Now,” is a compact credit card sized rapid test similar to a home pregnancy test.“You are receiving a nasal swab and then that swab is directly inserted into the card and there's a small pouch there that it's inserted into. Six drops of a buffer had been placed there prior to putting in the swab,” explained John Hackett, Junior Vice President of Applied Research and Technology at Abbott Laboratories.And though it does require a health care worker to administer, no specialty lab equipment is needed to process the antigen test. Results are available in about 15 minutes. The cost is apiece.“So, in 15 minutes you can look at the front of this test and if you see a single line, that would be the control line, and if there's two lines, that would indicate that the individual is positive for SARS-CoV-2,” said Hackett.The test was granted emergency use authorization by the FDA. It includes an app that allows people who test negative to display a temporary digital health pass for quick screening.The Trump administration quickly bought up 150 million tests for about 0 million.Officials say they are already beginning to deploy the tests to states, nursing homes, schools and areas hit hard by recent natural disasters.“These antigen tests however are fast and cheap, and it can be done really easily,” said Dr. Landon.Though, helpful in some scenarios, Landon cautions quick antigen tests like this can be less accurate and have a high false positive rate.“These tests aren't perfect and some of you have been in that situation with strep throat where you find that even if the test is negative that they send off a culture afterwards to make absolutely certain that you don't have strep throat and these tests are kind of similar,” she said.Still, experts say having a variety of testing options is beneficial. But the gold standard of accuracy remains the deep nasopharyngeal swab tests processed in a lab. 2796

  

CEO of Goya Foods, Robert Unanue: "We're all truly blessed to have a leader like President @realDonaldTrump" pic.twitter.com/vqMP4C3rqb— Team Trump (Text TRUMP to 88022) (@TeamTrump) July 9, 2020 203

  

CHICAGO, Ill. - Chicago Mayor Lori Lightfoot has issued several restrictions within the city as COVID-19 cases spike.According to the Chicago Tribune, Illinois announced on Thursday that 4,942 new confirmed cases of COVID-19 were reported.Mayor Lightfoot took to Twitter on Thursday to announce that beginning Friday bars without food licenses are closed for indoor service, and non-essential businesses will be closed from 10 p.m. to 6 a.m. 450

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