中山拉大便总是出血怎么回事(中山轻度痔疮症状) (今日更新中)

NASHVILLE, Tenn. - We’ve known for months about the dangers of the coronavirus spreading in crowded public places but we are now learning new information about the danger of COVID-19 spreading inside your home.The new study from Vanderbilt University Medical Center reveals how vulnerable family members can be inside a home where someone has contracted the coronavirus."What we found is COVID spreads very rapidly and very quickly inside a home," said Dr. Keipp Talbot of Vanderbilt University Medical Center.Just how fast? The study found half of all family members in a home with someone infected with COVID-19 will also get COVID-19, usually within just five days."Once it's in your house, it's very hard to keep from spreading, and you don't know who in your home will be susceptible, and they'll need to be hospitalized," Talbot said.The research adds a new dimension to public health guidelines that largely focus on social distancing outside your home -- guidelines that doctors say work if everyone in the home follows those guidelines while outside."However, if you or anyone in the family goes outside the bubble, and does anything that's risky -- large groups, bars, not wearing your mask -- they can come back into that bubble and put everyone in that bubble at risk," Talbot said.This story was first reported by Jason Lamb at WTVF in Nashville, Tennessee. 1379

Most people, when they retire, get a gold watch. James Harrison deserves so much more than that.Harrison, known as the "Man With the Golden Arm," has donated blood nearly every week for 60 years. After all those donations, the 81-year-old Australian man "retired" Friday. The occasion marked the end of a monumental chapter.According to the Australian Red Cross Blood Service, he has helped saved the lives of more than 2.4 million Australian babies.First, a note about antibodiesHarrison's blood has unique, disease-fighting antibodies that have been used to develop an injection called Anti-D, which helps fight against rhesus disease.This disease is a condition where a pregnant woman's blood actually starts attacking her unborn baby's blood cells. In the worst cases, it can result in brain damage, or death, for the babies.Here's why:The condition develops when a pregnant woman has rhesus-negative blood (RhD negative) and the baby in her womb has rhesus-positive blood (RhD positive), inherited from its father.If the mother has been sensitized to rhesus-positive blood, usually during a previous pregnancy with an rhesus-positive baby, she may produce antibodies that destroy the baby's "foreign" blood cells. That could be deadly for the baby.How Harrison made a differenceHarrison's remarkable gift of giving started when he had major chest surgery when he was just 14, the Australian Red Cross Blood Service said.Blood donations saved his life, so he pledged to become a blood donor.A few years later, doctors discovered his blood contained the antibody which could be used to create Anti-D injections, so he switched over to making blood plasma donations to help as many people as possible.Doctors aren't exactly sure why Harrison has this rare blood type, but they think it might be from the transfusions he received when he was 14, after his surgery. He's one of no more than 50 people in Australia known to have the antibodies, the blood service says."Every bag of blood is precious, but James' blood is particularly extraordinary. His blood is actually used to make a life-saving medication, given to moms whose blood is at risk of attacking their unborn babies. Every batch of Anti-D that has ever been made in Australia has come from James' blood." Falkenmire said. "And more than 17% of women in Australia are at risk, so James has helped save a lot of lives."Why his donations were a game changerAnti-D, produced with Harrison's antibodies, prevents women with rhesus-negative blood from developing RhD antibodies during pregnancy. More than three million does of Anti-D have been issued to Australian mothers with negative blood types since 1967.Even Harrison's own daughter was given the Anti-D vaccine."That resulted in my second grandson being born healthy," Harrison said. "And that makes you feel good yourself that you saved a life there, and you saved many more and that's great.The discovery of Harrison's antibodies was an absolute game changer, Australian officials said."In Australia, up until about 1967, there were literally thousands of babies dying each year, doctors didn't know why, and it was awful. Women were having numerous miscarriages and babies were being born with brain damage," Jemma Falkenmire, of the Australian Red Cross Blood Service, told CNN in 2015. "Australia was one of the first countries to discover a blood donor with this antibody, so it was quite revolutionary at the time."  3451

More than 12 million people in the U.S have contracted the coronavirus since the start of the pandemic.The nation's total number of confirmed cases reached 12.01 million on Saturday, six days after the number had reached 11 million, according to a tally by Johns Hopkins University.Daily numbers of new U.S. cases are approaching 200,000, less than three weeks after hitting 100,000 for the first time. The record of 195,542 new cases on Friday was the latest of several recent daily highs.Death rates are getting closer to the dire numbers seen in the spring. The U.S. daily death toll exceeded 2,000 on Thursday, the first time since early May. On Friday, 1,878 deaths were reported.The U.S. leads the world with more than 255,000 dead. 746

NAPLES, Florida. (KGTV) -- A bear was caught on camera ringing a doorbell and knocking over Christmas decorations at a Florida home. The video, captured by a Ring security camera, shows the bear sneaking up to the home in Naples Florida. The bear knocks over some Christmas decorations before walking up to the door and ringing the doorbell. The bear finally walks off after being yelled at by the family. The homeowner says nothing was damaged, but a snowman decoration did lose its head. 498

More than 1,000 mourners gathered in Texas on Saturday to pay their respects and celebrate the life of Barbara Bush, the matriarch of a Republican political dynasty.Bush, only the second woman in US history to have had a husband and son elected President, died Tuesday at the age of 92 at her home in Houston. She had been battling chronic obstructive pulmonary disease and congestive heart failure, and decided against seeking additional medical help earlier this week after a series of hospitalizations.See photos from Barbara Bush's visitation, funeralAccording to Mrs. Bush's wishes, the ceremony at the Bushes' family church, St. Martin's Episcopal Church in Houston, was a very simple service. Her son, former Florida Gov. Jeb Bush, friend Susan Baker, and presidential historian Jon Meacham delivered eulogies. 825

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