中山中医治疗肛肠脓肿(中山哪里有治疗内痔的医院) (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

US President Donald Trump says China has agreed to cut tariffs on cars it imports from the United States.Trump made the announcement in a tweet late Sunday in the United States, saying Beijing will "reduce and remove" the tariffs, which currently stand at 40%. He didn't specify when the change would happen or what the new tariff level would be.Chinese Foreign Ministry spokesman Geng Shuang declined to comment Monday on Trump's statement, referring questions to "the relevant authorities." The Chinese Commerce Ministry, which typically makes announcements regarding tariffs, didn't respond to a faxed request for comment.Trump's tweet comes after he and Chinese President Xi Jinping agreed on Saturday to hold off on further tariffs in the trade war between the two countries for the time being. But the Chinese government has made no mention of cutting car tariffs as a result of the meeting between the two leaders in Buenos Aires.Xi announced in a speech in April that China would cut tariffs on imported cars this year. His government followed through on that promise three months later, reducing them from 25% to 15%.But just days later, it imposed new additional tariffs of 25% on American-made passenger vehicles, one of the groups of products it targeted early in the trade warwith the United States.The move has hurt the profits of major automakers like BMW (BMWYY) and Daimler (DDAIF), the owner of Mercedes-Benz. The German companies both ship SUVs to China from manufacturing plants in the United States.Shares in BMW jumped more than 6% on Monday morning in Frankfurt following Trump's tweet, while Daimler's stock leaped more than 5%.Tu Le, the head of research firm Sino Auto Insights, highlighted the lack of specifics in Trump's tweet. 1804

US Customs and Border Protection closed road and pedestrian bridges on Sunday at the San Ysidro port of entry, one of the largest land border crossings between San Diego and Tijuana, Mexico.Groups of Central American migrants have been converging on the Mexican border city for days in their quest to gain entry to the United States. Their presence has drawn Mexican troops, protesters and fiery rhetoric from President Donald Trump and Mexican officials.As crowds amassed at San Ysidro, around 500 migrants overwhelmed federal and local Mexican police blockades and rushed toward the border, said freelance reporter Alfredo Alvarez, who is in the crowd.PHOTOS: Migrants converge on Tijuana-San Diego borderThe crowds were made up of men, women and a lot of children, Alvarez said.With bridge and pedestrian border crossings closed in both directions, the migrants headed for the cargo area where the railroad crosses, Alvarez said.They appeared to get close to the border wall, Alvarez said. He could not see from his position if the migrants had managed to get across the actual border.More demonstrations were planned on Sunday at San Ysidro, the busiest land port of entry in the Western Hemisphere, according to the US General Services Administration.The planned demonstrations on both sides of the border prompted CBP to deploy extra personnel to the border crossing, the agency said."The additional personnel, which included CBP officers, US Border Patrol agents, and Air and Marine agents, were recently deployed to the San Diego area from various areas around the country in preparation for the potential arrival of the caravan in Tijuana."The mayor of Tijuana said on Sunday that he would not let the migrants' actions damage the city's relationship with its neighbors across the border. Many residents of Tijuana work, study and visit the United States each day, and the border closures affect them, too, Juan Manuel Gastélum said on Twitter on Sunday.The mayor has said previously that the city cannot support the migrants.  2049

Two people have died in a partial building collapse at an Amazon Fulfillment Center in southeast Baltimore, officials said Saturday.Baltimore Fire Department spokesman Chief Roman Clark said thermal imaging equipment was being used to determine if anyone else may be trapped inside. One of those found dead was an adult male.Brandon McBride, an employee who was working in the building at the time, described the chaos to CNN affiliate WBAL when the building collapsed. 477

Vermont Sen. Bernie Sanders' son is running for Congress in New Hampshire.Levi Sanders, 48, said in a statement first reported by WMUR and since posted on his campaign website that he is entering the open-seat race to replace retiring Democratic Rep. Carol Shea-Porter."This is a unique opportunity to listen to the hard working men and women of New Hampshire about the issues that matter to them," he said.The New Hampshire 1st District is one of the nation's most competitive open-seat races in 2018's midterms.Unlike his father, who ran as an independent in Vermont, Sanders is running as a Democrat. He'll be the eighth Democratic candidate to enter the race.Sanders lives in Claremont, New Hampshire, which is outside the 1st District. Members of the US House must live in the state they are running in, but are not required to live in the district.Sanders said in the statement he's worked in Massachusetts as a legal services analyst for 17 years."For 15 years, New Hampshire has been my family's home," he said.Sanders' platform largely mirrors his father's. He's campaigning for a "Medicare for all" single-payer health care system, free college tuition, an increased minimum wage, as well as "sensible gun legislation" and solutions to the "crisis level" opioid epidemic.Sanders' advisers had previously lined up behind state Rep. Mark MacKenzie.Maura Sullivan, a former Marine and Veterans Administration official, and Chris Pappas, a New Hampshire Executive Council member whose family co-owns the Puritan Backroom restaurant in Manchester, a well-known stop on the presidential campaign trail, are also running for the Democratic nomination.  1668

来源：资阳报