济南龟头敏感不治疗(济南睾丸痛痛) (今日更新中)

ATLANTA — The United States is going to require airline travelers from Britain to get a negative COVID-19 test first. The Centers for Disease Control and Prevention announced the new policy late Thursday. Airline passengers from the United Kingdom will have to test negative for COVID-19 within three days of their flight. The requirement goes into effect Monday.The U.S. is the latest country to announce travel restrictions because of a new variant of the coronavirus that is spreading in Britain and elsewhere. The new of the virus is more contagious than other strains.The CDC said because of restrictions in place since March, air travel to the U.S. from the U.K. is down by 90%. 692

At least 14 people were injured Saturday when a deck collapsed at a tap house in Savannah, Georgia, the city's fire department said on Twitter."A total of 14 were ultimately transported to local hospitals for treatment, 2 serious injuries," a tweet read.The Rogue Water Tap House deck fell 12 feet, collapsing onto a seating area below around 4:30 p.m., according to another fire department tweet.CNN affiliate WTOC reported that the bar later reopened.The Georgia port city is home to a famous St. Patrick's Day parade, the second-largest in the United States and third-largest in the world.Savannah's event started more than 190 years ago. About 280 units, including bands, soldiers and floats, now march through the downtown streets of Georgia's oldest city each year on March 17.With this year's parade on a Saturday, the Savannah St. Patrick's Day Parade Committee was expecting more than 500,000 people to show up, said Brian Counihan, general chairman of city's parade committee. 1014

As Walt Disney World and other Florida attractions prepare for re-opening in the coming weeks, the state reported another rise in coronavirus cases. Thursday morning, the Florida Department of Health reported 3,207 new cases and 43 new deaths. Since the first two deaths were announced on March 6, the toll in Florida has risen to 3,061, and 85,926 total cases. According to Thursday data from the state Agency for Health Care Administration, less than 25 percent of hospital adult intensive-care unit beds are available.A projection model from scientists at Children's Hospital of Philadelphia and the University of Pennsylvania warns Florida has "all of the markings of the next large epicenter of coronavirus transmission" and risks being the "worst it has ever been."Florida was one of 10 states that saw a record number of new COVID-19 cases this week.Testing in Florida has ramped up. So has the positive rate also has been trending up in the past week. The overall percent of positive tests stands at 5.7 percent as of Thursday, up from 5.6 percent the previous day and 5.5 percent the day before that. Florida reports having completed more than 1.5 million tests for COVID-19.The mortality rate involving positive cases is 3.6 percent in the state compared with 5.4 percent in the United States and 5.4 percent worldwide.Gov. Ron DeSantis on Tuesday said the state is “not shutting down” and will push forward with reopening.During that press conference, DeSantis attributed the spike to increased testing and expanded testing of "high risk" locations like long-term care facilities, construction sites, farms and other places.This story was originally published on www.WTXL.com. 1695

As the polar ice caps retreat, polar bears could struggle to survive by the end of this century, a number of university researchers wrote in a study published in the Nature Climate Change journal.The study looked at a number of sub-species of polar bears who live in the arctic and how they have adapted to reduced sea ice from 1979 to 2016. The group of researchers said that all but a few sub-species of polar bears will be able to reproduce and survive given projected conditions by 2100.Polar bears use sea ice to capture seals for food. When sea ice erodes for the summer, polar bears fast. Although polar bears are capable of fasting for months, there are limits to how long the bears can go without food.The researchers examined energy needs of polar bears, and that the amount of time polar bears would fast would lengthen to a point that makes it too challenging to survive and reproduce.While resting female polar bears can generally fast for longer periods of time, reproducing females, males and cubs all require shorter fasting periods, the research found.“Avoiding continued sea-ice decline requires aggressively mitigating greenhouse gas rise,” the researchers wrote, “and our results explicitly describe the costs to polar bears of avoiding that mitigation.”To illustrate how much sea ice is being lost, NOAA is projecting that the arctic could have ice-free summers by 2042.Scientists have long discussed the possibility that polar bears could become nearly extinct by the end of the century. Beyond reducing carbon emissions, proposals have included relocating cubs to areas of the Arctic expected to retain higher levels of sea ice have been proposed. To read the full study, click here. 1714

As mixed messages continue regarding face coverings, Mississippi became the first state to lift a statewide mask mandate. Cities and towns can now put their own rules in place.The governor said the facts and data still show masks work, and the state is still requiring them at certain events, including the state fair that starts this week.“I suspect Mississippi will see an increase in cases if people stop wearing face coverings,” said Dr. Amesh Adalja with the Johns Hopkins University Center for Health Security.Infectious disease experts remind people just because an order may be lifted, doesn't mean they should stop wearing masks.“We have to have an effective vaccine to prevent people from getting infected as well as prevent them from getting severe disease, that we had adequate testing capacity so people could know their status and wouldn't go out into public if they were positive,” said Adalja. “I think short of that, masks are going to be one tool that we have to continue to use and many people are going to get accustomed to masks and they're going to realize that masks also likely have some impact on other respiratory viruses, so we may see mask wearing much more common in the United States, similar to what it is in other Asian countries, because of the value people are gaining from them.”New research on homemade cloth masks found they expel invisible cotton fibers into the air. It’s unknown if those fibers can carry infectious viral particles, which drives home the point of washing any cloth facial coverings. Make sure you do that regularly. 1580

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