济南盐水洗龟头降低敏感度(济南生殖器变白) (今日更新中)

Two studies released this week are offering some hope for parents and school districts looking to reopen this month across the country.The studies, one from the United Kingdom and the other from Australia, were published in the journal The Lancet Child & Adolescent Health this week and try to help inform ongoing discussions around reopening schools.A team in Australia was able to look at results from students who remained in class between January and early April.Researchers found even though schools remained open in New South Wales, children and teachers did not contribute significantly to the spread of Covid-19 -- because good contact tracing and control or quarantine strategies.Their data showed that while 27 children or staff at 25 schools and daycares had attended school while infectious with Covid-19, only 18 other people later became infected.That’s an attack rate of 1.2 percent. Overall, the attack rate of child-to-child transmission was 0.3 percent, while the attack rate of adult staff member to another adult staff member was 4.4 percent.“With effective case-contact testing and epidemic management strategies and associated small numbers of attendances while infected, children and teachers did not contribute significantly to COVID-19 transmission via attendance in educational settings,” the Australian team of researchers state in their report.In the British study, researchers looked at models on returning to school with different scenarios, including increased testing, isolation measures for positive cases, and levels of contact tracing.The models the researchers ran assumed that 75 percent of those with positive test results are contacted, provide information for contact tracing and isolate, and that 90 percent of that person’s contacts are reached by contact tracers and asked to isolate.The team assumed between 59 percent and 87percent of symptomatic people in the community would need to get tested at some point during their infection, testing results would be returned in one day, and those asked to isolate would do so for 14 days.Researchers made it clear that these levels would be needed to reopen schools.“However, without these levels of testing and contact tracing, reopening of schools together with gradual relaxing of the lockdown measures are likely to induce a second wave that would peak in December, 2020,” their report stated. “To prevent a second COVID-19 wave, relaxation of physical distancing, including reopening of schools, in the UK must be accompanied by large-scale, population-wide testing of symptomatic individuals and effective tracing of their contacts, followed by isolation of diagnosed individuals.” 2683

UK Prime Minister Theresa May has survived a vote of no confidence triggered by members of her own party over her handling of Brexit.The result was announced by Graham Brady, a member of parliament who chairs the 1922 Committee, which represents Conservative lawmakers in the House of Commons.Voting by secret ballot began at 6 p.m. (1 p.m. ET) Wednesday evening after May made her final pitch to lawmakers promising them she wouldn't fight the next general election in 2022. A pro-May MP told CNN the Prime Minister "got a real grilling, but overall solid support" as she made her case to MPs.Wednesday's no-confidence vote could not have come at a worse time for May, who had been crisscrossing Europe to beg EU leaders for help passing her Brexit deal through UK Parliament.May was forced to postpone a vote on the deal on Monday when it became clear her bill would face a humiliating defeat.The Prime Minister's victory protects her from another leadership challenge from within her own party for 12 months. 1029

VENTURA COUNTY, Calif. – Some public lands are closing again, but not because of the coronavirus, because of litter and huge crowds.Paradise Falls, a hidden waterfall in Ventura County, California, was packed on Memorial Day weekend. Brian Stark, Administrator for the Conejo Open Space Conservation Agency says, "the pool under the falls is only slightly larger than the residential swimming pool, so imagine your swimming pool in your yard with several thousand people coming through it in a day.”He says those thousands of people also brought thousands of pounds of trash to the 40-foot waterfall.“People were trampling the wetland vegetation to get to the other side, we were taking multiple truckloads of garbage out daily and people brought a BBQ there and we have high fire danger areas,” said Stark.When we asked what kind of trash was left behind, Stark said, "people brought picnics and normally a hiker might bring an energy bar, not a box of pizza.”They treated the small waterfall like it was their personal space. And they stayed. So, the Conejo Open Space Conservation Agency, which looks after the falls and the surrounding park, decided to close the falls indefinitely. A fence sits around it now, and rangers routinely check in. Initially, police had to turn people away.‘“We just didn’t have the capacity to manage those crowds while protecting the resource.”Paradise Falls wasn't the only area with problems that weekend. Galveston Island in Texas, posted on Social Media that their team collected 156,000 pounds of trash on its beaches. Helen Lowman, President and CEO of "Keep America Beautiful," says it's a problem that the organization has been managing for 68 years.“Everyone had been inside for so long and it was just a chance to enjoy nature and get out and get sun, be on the beach, take a hike in a park, have a picnic,” she said.What was left was a record amount of trash. Volunteers in Cocoa Beach, Florida, picked up 13,000 pounds in three days.“They said it was more than they’ve ever seen.”And, if you're seeing gloves and personal protective equipment littered everywhere these days, you're not alone."There are ways to dispose of these things that are safe and don’t leave it on the ground for somebody else to pick up.”Lowman reminds us that all that trash eventually ends up in our waterways, which all lead to our oceans.“80% of litter that’s in the ocean started on land, you don’t have to throw something on the beach in order for it to end up in the ocean,” said Lowman.She says there's a good rule of thumb when you're headed out to enjoy public lands. If you pack it in, pack it out. Take home whatever you took with you.“Please take care of our natural spaces, it’s all we’ve got and right now these spaces are more important than they’ve ever been.”As for Paradise Falls, they hope to bring it back someday.“We exist to help people get outside and have the feelings they feel in the outdoors but there’s a time and place for every activity and we’re not set up with facilities to handle large numbers of people for large amounts of time.”It's a reminder to protect our outdoors, so they remain open for us all. 3166

U.S. futures and world shares have surged as investors await the outcome of the U.S. presidential election and embrace the upside of more gridlock in Washington. European markets opened higher after a day of gains in Asia. The fate of the U.S. presidency remained undecided as of early Thursday as neither President Donald Trump or Democratic challenger Joe Biden had secured the 270 Electoral College votes needed to win. Analysts say a Congress likely once again split between a Democratic House and a Republican Senate is expected to keep U.S. tax and other policies relatively stable thanks to legislative gridlock. Share prices tend to rise regardless of who is in the White House. 694

United Airlines is sending layoff warnings to 36,000 employees, nearly half its U.S. staff. It's the clearest signal yet of how deeply the COVID-19 pandemic is hurting the airline industry. United officials said Wednesday that they still hope to limit the number of layoffs by offering early retirement, but they have to send notices this month to comply with a law requiring that workers get 60 days' notice ahead of mass job cuts. The furloughs would include 11,000 flight attendants, 11,000 customer service and gate agents, 5,500 maintenance workers and 2,250 pilots. United officials said the notices cover 45% of its U.S. employees.Air travel in the U.S. dropped about 95% by mid-April. It has recovered slowly but remains down about 75% from a year ago. 768

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