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The month of March for Diana Berrent was one she could’ve done without. The 46-year-old woman was one of the first people in New York State to catch COVID-19.To this day, she's still living with residual symptoms six months later.“COVID is supposed to go away like the flu, and it’s not necessarily going away after two weeks,” she explained.In an effort to help find treatments and develop a vaccine, Berrent has been donating plasma as often as she can. It's in her antibodies, where the key to fighting this virus may lie.Dr. Wesley Self, a researcher at Vanderbilt University Medical Center, has spent the last few months trying to figure out what antibodies are telling us about COVID-19 and how to fight it.“Understanding how the immune system responds to the virus will help development of the vaccines,” Dr. Self said.Dr. Self and his colleagues spent the last few months studying 3,000 people. All of them were healthcare workers who had tested positive for COVID-19. They found that a majority of people who had the most severe cases started out with the most antibodies. But the study also found after 60 days, almost everyone who had coronavirus lost all antibodies.That could be bad news when it comes to our bodies' ability to fight off the virus a second time.“The antibodies are one piece of the immune system. It’s possible they’ll ramp up again quickly and prevent reinfection,” Dr. Self added.All of this also means researchers now need to get blood samples from people fairly quickly after they're infected before antibodies disappear.“We need to be thoughtful about vaccines and treatments that are specific for this virus,” he said. 1662

The mayor of Philadelphia said on Tuesday that all large events have been canceled until February 28, 2021, due to the coronavirus pandemic."This was not an easy decision to make," Mayor Jim Kenney said in a tweet. "The health and safety of residents, workers, and visitors must be our top priority." 308

The orca whale that made headlines in July 2018 for carrying her dead calf 1,000 miles is a mother again.Researches at the Center for Whale Research announced that Tahlequah, also known as J-35, gave birth last week. 224

The lake in California, where former "Glee" star Naya Rivera tragically drowned in July, has reopened and banned swimming.The Lake Piru Recreational Area reopened on Aug. 20, according to the park's Facebook page.The park had been closed since July 9, since the actress first went missing.The park continued to stay close due to the coronavirus pandemic and the wildfires ravaging California.Still, residents told TMZ that they believe the park's restrictions somehow related to Rivera drowning in the Ventura County lake.Since reopening, the park has put precautions, including a swimming ban, the park's website stated.The park says shore fishing, personal watercraft, and boating activities are permitted.Rivera went missing on July 8 while boating with her 4-year-old son at the lake. Ventura County Sheriff's Office said Rivera rented a boat at the lake and excursed her son.Authorities were alerted when other boaters later found Rivera's boat drifting in the northern portion of the lake with her son sleeping onboard.Rivera's body was found on July 13.At the time, Sheriff Bill Ayub said Rivera and her son were swimming when the actress began to get tired. He thinks Rivera mustered enough energy to get her son on the boat but couldn't climb back in herself.Investigators believe Rivera drowned in what appears to be a "tragic accident," the office wrote in a press release.On July 14, an autopsy by the Ventura County Medical Examiner revealed Rivera's death as drowning.Her death certificate, which was obtained by People and The Blast, said the actress died within a "manner of minutes."After Rivera's death, a petition on Change.org was created urging park officials to put signs up warning swimmers of how dangerous the lake was.According to the Los Angeles Times, seven people have drowned in the lake between 1994 and 2000. 1848

The number of people killed in wildfires burning in California has risen to 50 -- including 48 from northern California's Camp Fire, already the most destructive and deadly blaze in state history.As firefighters battle that fire Wednesday in Butte County north of Sacramento, authorities fear more human remains will be found as searchers comb through rubble and ashes in Paradise, the ravaged town of about 27,000 residents."I want to tell you, though, this is a very, very difficult process," Butte County Sheriff and Coroner Kory L. Honea told reporters. "There's certainly the unfortunate possibility that even after we search an area, once we get people back in there, it's possible that human remains can be found."PHOTOS: Wildfires devastationAuthorities have requested that 100 National Guard troops join cadaver dogs, mobile morgues and anthropology teams in the grim search and recovery of human remains.In Southern California, firefighters still are battling the Woolsey Fire, which so far has left two people dead in Malibu.They've also been fighting a new blaze, the Sierra Fire, in San Bernardino County. It started late Tuesday about 50 miles east of Los Angeles near Rialto and Fontana, and by Wednesday morning had burned 147 acres, though no evacuations have been ordered, the San Bernardino County Fire District said.Fire officials said the Sierra Fire was fanned by the Santa Ana winds -- strong, dry winds that high-pressure systems push from east to west, from the mountains and desert areas down into the Los Angeles area.Winds will be "particularly strong" Wednesday morning but are expected to weaken by evening, the National Weather Service said.Meanwhile in Northern California, forecasters have said the winds fueling the Camp Fire would slowly begin to decrease Wednesday and give firefighters a reprieve. 1842

来源：资阳报