南京肘关节剖面模型(长沙恒牙模型) (今日更新中)

The FDA said on Tuesday it has developed guidelines to take plasma from coronavirus survivors to treat patients who are critically ill from the virus. The FDA said on Tuesday that It is possible that convalescent plasma contains antibodies to the coronavirus and might be effective against the infection. The FDA said that although the announcement is promising, convalescent plasma has not been shown to be effective in every disease studied. The FDA is not approving using plasma as a treatment, instead using it as a clinical trial and for the treatment of those who are critically ill. "Given the public health emergency that the expanding COVID-19 outbreak presents, while clinical trials are being conducted, FDA is facilitating access to COVID-19 convalescent plasma for use in patients with serious or immediately life-threatening COVID-19 infections," the FDA said. The plasma will be collected from recovered individuals only if they are eligible to donate blood. The FDA said on Sunday that it was altering its guidelines on Risk Evaluation and Mitigation Strategy (REMS)-required testing, which allows healthcare providers to weigh the benefits of an experimental drug over its risks.“The FDA recognizes that during the COVID-19 public health emergency, the completion of some REMS-required laboratory testing or imaging studies may be difficult because patients suspected of having COVID-19 may be self-isolating and/or subject to quarantine,” said FDA Principal Deputy Commissioner Amy Abernethy, M.D., Ph.D. “Under these circumstances, undergoing testing or imaging studies in order to obtain a drug that is subject to a REMS can put patients and others at risk for transmission of the coronavirus. We will continue to work with sponsors to ensure that patients have appropriate access to the medications they need.” 1843

The impeachment process is one that isn’t used very often, but it’s been around since the birth of the U.S. Constitution.“It was an idea as a check on the abuse of political power,” said Norman Provizer, a professor of political science at Metropolitan State University of Denver.He said impeachment is like an indictment. It doesn't mean the president is automatically booted out of office. When a simple majority of the House of Representatives votes to impeach, the next step is a trial in the Senate. The president can then be removed from office by a two-thirds vote in the senate.Only three U.S. presidents ever have been impeached: Presidents Andrew Johnson, Bill Clinton and Donald Trump. Johnson and Clinton both managed to finish their terms in office. President Richard Nixon actually resigned before the House of Representatives could pass the impeachment articles against him.“Andrew Johnson, one of the charges against him was he didn’t follow an act passed by Congress. And that is illegal, you can’t do that,” Provizer said.Provizer said there was a lot of disagreement between Johnson and Congress during his term in the 1860s. Clinton’s impeachment more than a century later had little to do with Congress. “I did not have sexual relations with that woman," Clinton said at a White House press conference in 1998.Turns out Clinton did have an affair with a White House intern, despite denying it during testimony.“There is a thing about perjury — lying under oath. All of it’s surrounding sexual activities, if you will,” Provizer said.Impeachment isn’t only for presidents. In fact, Provizer said it’s mainly used to try and potentially remove federal judges.“It says in the constitution the president, the vice president and other civil officers," the professor said.Provizer said presidential impeachments are often most noteworthy because they come with dramatic storylines. He says people start to draw connections between different impeachment proceedings. For example, the partisan divide we’re facing now was seen during Nixon’s administration.“It looks like the Republicans are defending him, and the Democrats are going after him. I mean, that’s how it’s viewed — very partisan. But as it unfolds and more information comes out, basically, many Republicans drop their effort to defend him.”As of now, most of the Republican party has remained loyal to Trump. In the end, Provizer said all impeachment proceedings have been fundamentally the same. They simply deal with different subject matter.“If you give a government power, what do you also have to be concerned with? The ability to check that power," Provizer said. "You need both. Otherwise you have authoritarian rule."  2722

The feel-good story of how Cambodia allowed a cruise ship to dock after it was turned away elsewhere in Asia for fear of spreading a new disease took an unfortunate turn after a passenger later tested positive for the virus.News over the weekend that an 83-year-old American woman who was on the ship and flew from Cambodia to Malaysia was found to be carrying the virus froze further movement of the passengers and crew of the Westerdam. Some are in hotels in Cambodia’s capital, Phnom Penh, while others are still aboard the ship.The American woman was among several hundred passengers who were flown out of Cambodia on Friday and Saturday. According to authorities in Malaysia, 143 continued their flights home from that country, while the woman and her 84-year-old husband, who was diagnosed with pneumonia, remained behind for treatment.The dispersal around the world of passengers from the ship with possible exposure to the new coronavirus has sparked concern.“I think now given that there is a confirmed case that is suspected to have acquired infection on board the ship, the other passengers should be asked to quarantine themselves at home and alert health authorities if they develop fever or respiratory symptoms within the 14 days since disembarkation,” said Professor Benjamin Cowling from the School of Public Health at Hong Kong University.Dr. Gagandeep Kang, executive director of India’s Translational Health Science and Technology Institute, said it is unclear whether the woman’s infection would result in an outbreak in another part of the world. The virus that causes the disease named COVID-19 has been confirmed in about two dozen countries, with most cases concentrated in China, where it emerged in December. “We will have to wait and see,” she said, adding that it would depend on where the woman got the infection, and at what stage of the infection she was in while in contact with other people.The ship’s operator, Holland America Line, said in a statement Monday that Cambodian health officials were on the ship testing the 255 guests and 747 crew who were awaiting clearance, and that guests currently staying at a Phnom Penh hotel had all been tested.“At this time, no other guests or crew on board or at the hotel have reported any symptoms of the illness. Guests who have already returned home will be contacted by their local health department and provided further information,” it said.The statement added that the virus patient had not reported any illness to the Westerdam’s medical center during the cruise. Twenty people who reported illness while on board have tested negative for the virus, it said. The rest of the passengers and crew had health checks that included filling out a written health questionnaire and having their temperatures checked, which has become standard procedure for air and sea passengers considered at risk.Several Westerdam passengers from the United States and elsewhere have already returned home and spoken to the media.Two of the passengers, Joseph Schaeffer and his wife, Paulette, a retired nurse, told the Las Vegas Review-Journal from their home in Henderson, Nevada, that they felt the hue and cry over the released passengers was not totally merited.“It doesn’t seem to me that the whole world should be jumping at this,” Joseph Schaeffer said. “There are more deaths from the flu than there have been from this particular virus,” his wife said.The couple said they were screened on their way home at airports in Phnom Penh and Singapore by thermal scanners that remotely monitor arriving passengers.On arrival in Los Angeles, they said, they were among a large crowd getting screened that included fellow cruise passengers. They said they answered questions gfrom the Centers for Disease Control and Prevention that included whether they felt sick, had visited mainland China or knew anyone who had contracted the virus.Two Canadians who returned via Vancouver International Airport were asked to put on protective face masks on arrival but were not otherwise isolated, Canada’s CBC News reported.“We were asked a few questions and filled out an immigration form, and they very nicely helped us bypass the usual lineups and let us out the door,” said Joseph Hansen, who took the cruise with his wife. “We’re feeling fine.”Hansen, from Surrey, British Columbia, told CBC that he did not hear about the American woman in Malaysia with the virus until he landed in Vancouver on Sunday.“I guess on the one hand it’s upsetting to know that there was one case, but we’re feeling fine,” he said. “We’ve had health scans, temperature scans and we don’t have any concerns for our own health.”Cambodia’s government had originally earned kudos from the head of the U.N.’s World Health Organization and the U.S. ambassador there for allowing the ship to dock at Sihanoukville after it was turned away by Japan, Taiwan, the Philippines, Guam and Thailand.The move was seen as a victory for the image of Cambodia’s authoritarian leader, who welcomed the ship’s passengers with handshakes and flowers. Prime Minister Hun Sen boasted that although Cambodia is a poor country, it “has always joined the international community to solve the problems that the world and our region are facing.” WHO Director-General Tedros Adhanom Ghebreyesus had said he was pleased Cambodia had agreed to accept the Westerdam and described it as an example of the international solidarity advocated by the U.N. health agency.“The one thing I can say is we’re very, very grateful that Cambodia has opened literally its ports and its doors to people in need,” U.S. Ambassador to Cambodia W. Patrick Murphy said Saturday when he took his family to the port to meet passengers. “We think this sends a strong message. We all have to help each other.”In hindsight, however, Cambodia’s handling of the ship’s passengers has been criticized on social media, though it also has gotten some support.According to Cowling, the Hong Kong University professor, it’s a good idea to let passengers leave and monitor them after disembarkation.Since there were no known cases on board the Westerdam at the time passengers left the ship, it was reasonable to allow them to travel home, he said.“I think it would not be appropriate to keep passengers on the ship for 14 days, as it could be a high-risk environment,” Cowling said. “We have seen the consequences of holding passengers on a cruise ship with the Diamond Princess outbreak,” he said, referring to another cruise ship that is quarantined in Yokohama, Japan, with hundreds of cases among the passengers.___Ng reported from Kuala Lumpur, Malaysia, and Peck reported from Bangkok. Associated Press writer Aniruddha Ghosal in New Delhi contributed to this report. 6759

The House failed to override President Donald Trump's veto after both chambers of Congress sought to overturn his national emergency declaration to build more border wall.The vote was 248-181, with 14 Republicans voting with Democrats to support the override. It was a steep hill to climb for opponents of Trump's national emergency as the House would have needed two-thirds of its members to back the veto override. Thirteen Republicans voted for the resolution in the first place.Both chambers of Congress passed a resolution to overturn Trump's national emergency declaration to fund more border wall, which would use billions from the Treasury and Defense departments after Congress rejected giving Trump the full amount of border wall money he requested for the year.The decision sparked criticism from Republicans and Democrats alike, many of whom argued the national emergency action would violate the Constitution.The House easily passed the resolution of disapproval in February. A few weeks later, 12 Senate Republicans joined with Senate Democrats to pass it, marking a sharp rebuke from members of the President's own party on a key issue to his base.The President vetoed the bill one day after it cleared the Senate."Congress has the freedom to pass this resolution and I have the duty to veto it," Trump said from the Oval Office before officially sending the measure back to Congress without his approval.House Democrats, meanwhile, were quick to announce they would hold an override vote on March 26. "The House and Senate resoundingly rejected the President's lawless power grab, yet the President has chosen to continue to defy the Constitution, the Congress and the will of the American people," Pelosi said in a statement at the time.But the House faced a high hurdle, needing a two-thirds majority -- rather than a simple majority -- to override the veto. The House first passed the bill 245-182.House Democratic leaders were under no illusion that the veto override would pass. Speaker Nancy Pelosi said last week that the point of the vote is to make it clear the new Democratic-controlled House won't tolerate the President's persistence for a border wall."Whether we can succeed with the number of votes is not the point," Pelosi said at an event in New York. "We are establishing the intent of Congress."Senate Minority Leader Chuck Schumer said earlier this month that the National Emergency Act allows for a resolution of disapproval to come up every six months, and Democrats intend to bring it up again then. 2550

The Democratic Party and CNN announced that the next Democratic Party debate, which will likely feature Joe Biden and Bernie Sanders, will be without an audience. CNN also announced that the media filing room and spin room, an area for journalists to gather interviews for reports, will also be closed. "CNN's top priority is the safety of our employees and community members," the network said in a statement. "This extends to guests planning to attend or cover our debate on March 15. At the request of the campaigns and out of an abundance of caution, we have made the decision to eliminate the debate live audience, the press filing center and spin room in Phoenix."Sunday's debate will be the first one-on-one debate between Biden and Sanders. Earlier on Tuesday, both campaigns canceled planned rallies that were slated to be held in Cleveland. The Cleveland area had three confirmed cases of COVID-19 on Monday."DNC has been in regular communication with local health officials and the Mayor's office, which advised that we could proceed as planned," DNC Communications Director Xochitl Hinojosa said in a statement. "Nevertheless, our number one priority has and will continue to be the safety of our staff, campaigns, Arizonans and all those involved in the debate. We will continue to remain in daily contact with all stakeholders through Sunday." 1369

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