郑州郑州眼镜医院(郑州手术近视眼) (今日更新中)

SAN DIEGO (KGTV) -- For some people who catch the coronavirus, their symptoms can last for months. Researchers are calling these patients who now test negative but still experience symptoms "long haulers." Doctors are calling the long hauler problem a big mystery.It's a new phenomenon of a new virus, stumping even the brightest researchers and doctors."I have to tell him, I don't know," Dr. Zehui Tan with Sharp Rees Stealy Rancho Bernardo said.Dr. Tan is treating an otherwise very healthy 24-year-old man who tested positive for COVID-19 in September. She says after he quarantined for 14 days, most of his symptoms went away. He retook the test, and it came back negative. But the good news was short-lived. A month later, he ended up in the ER once again."His blood test is normal, chest is fine, but they found an abnormality in the EKG -- an inflammation of the heart. It can be a complication after COVID," Dr. Tan said.Researchers believe about 10% of COVID-19 patients see a relapse in symptoms. These "long haulers" now test negative for COVID but still experience symptoms that include coughing, fatigue, body aches, shortness of breath, loss of taste and smell, and brain fog."Almost three months after the COVID infection, he's still not feeling right," Dr. Tan said.Researchers say there does not seem to be a consistent reason or type of patient who becomes long-haulers."We see people die long from COVID, and I have a 92-year-old just fully recovered, so you just never know what's going to happen in your body once you get this COVID," Dr. Tan said.So it could be a long road ahead until her patient feels like himself again."We don't know," Dr. Tan said. "The only thing we can give is offer lots of support, treat them symptomatically, and then just watch and wait."Experts say patients who had bad respiratory issues may develop permanent lung damage. However, those who lost their sense of taste and smell will likely get those senses back. 1973

SAN DIEGO (KGTV) -- For over a decade, SDSU associate professor of chemistry Gregory Holland has been researching spiders and particularly black widow’s silk.They’ve come to the realization, through their research, that the properties of black widow silk are stronger than steel and tougher than the Kevlar in bulletproof vests.Gregory Holland, SDSU associate professor of analytical chemistry and Northwestern chemistry professor Nathan Gianneschi said their collaboration shows the organization of the molecules involved in silk production is more complex than previously thought.There are companies that use synthetic spider silk but its the specific black widow spider silk that has the top tier benefits.“The synthetic spider silk its not a bad material, its just not as good as the real thing," Holland said.Holland says the company that creates synthetic silk actually has partnerships with Adidas and Patagonia. "The most important thing is a spider does it low energy, environmentally friendly. It’s just protein water and salt”.Once they reach the point where they’re able to identically replicate the silk of a black widow spider, the artificial version could be used in building materials for bridges or environmentally friendly replacements for plastic.Black widows (Latrodectus hesperus) spin a lightweight thread much stronger than that of other spider species, with draglines that can stretch an extra 25 percent of their length before snapping.The composition of the spun silk fibers was previously identified, but the structure of the proteins involved in producing them has been more of a mystery, now one step closer. 1650

SAN DIEGO (KGTV) -- During this COVID-19 pandemic, many unsung heroes have stepped up to offer assistance in this critical time of need. And that includes a local pilot, who helping those workers, that help him to get off the ground. Anthony Oshinuga became interested in becoming a pilot when he was 5-years old, and now he's a veteran of the air. Anthony's need for speed and adrenaline led him to racing and performing aerobatics. But he calls his latest piloting adventure, his most rewarding. Flying his own biplane, he traveled across in the country for a campaign he calls, "Reach for the sky...we've got the ground"."Essentially, what that means, is for the support crew that is on the ground at each airport we visited. We delivered a COVID-19 relief package that had face masks, hand sanitizer, and then we gave them a mug to say thank you. We appreciate what you are doing."It was quite a trip for the Valley Center resident, as his flight included 44 stops in 22 locations."My sponsor, Epic Fuel,s, put together this campaign that covered six thousand nautical miles, in my biplane, traveling about 160 miles per hour, " says Anthony. His trip was about giving thanks to airport employees."We have people at the airport, like the guys who fuel the trucks, and those workers who greet people coming off private jets. There are interactions and contact with these people all the time, and we don't think about that."And along his journey, he was able to visit with young kids, and maybe inspire them to become pilots one day. "There were a few stops along the way where people got word of me stopping in. A bunch of kids came out that were S.T.E.M motivated. They were students going through the engineering program, and I got the opportunity to meet them and speak to them, and just to inspire them."It was definitely a trip of a lifetime."Flown six thousand miles with that message, and making it out pretty good right." 1942

SAN DIEGO (KGTV) -- Firefighters are trying to determine what caused a brush fire in Mission Valley Wednesday afternoon.The fire erupted along Interstate 8 and Texas Street near iFLY around 3:00 p.m.Firefighters say steady wind carried flames from a tree across the overpass, catching dry brush on fire near Camino Del Rio.The Texas Street off-ramp from Interstate 8 was closed in both directions due to the blaze. Firefighters say a quarter of an acre was burned in the fire.Thick brush and trees were burned, but no business in the area were damaged. Crews had to conduct about six water drops in the area to extinguish the flames. 646

SAN DIEGO (KGTV) - Five people who witnessed a potentially deadly situation were honored by the California Highway Patrol Friday to taking action that helped save a man's life.Dennis McNea is a driver for the Freeway Service Patrol. His job is to help stranded motorists. But Nov. 13, 2019, he was driving on State Route 94 when he suffered a medical emergency. "Almost hit me," said witness Gina de la Torre, a Navy sailor who was on her way home at the time. "And as I saw him, he was hitting the highway barrier and I noticed that he was slumped over in his car."RELATED: Community helps man devoted to keeping park cleanAnother witness, Alberto Robles, used his own truck to make contact with McNea's, slowing them both down to a stop. The other four, including de la Torre, stopped to help. "They just kind of stopped and looked at me like, 'What do we do?'" she told 10News. "So that's when I was like, okay, keep calm and just do whatever you have to do."They performed CPR until medics arrived. "I don't remember what happened to me at all," McNea said. "I woke up in the hospital a couple of days later. I was told what happened."RELATED: San Diego Police honor boy who risked life to save brother from drowningMcNea said it was emotional when he finally got the chance to meet each of his rescuers at a ceremony put on by CHP Friday. "A million thanks is not enough. They gave me a lottery ticket. They gave me life. You can have a billion dollars, but you can't buy life, and they gave me life," McNea said.McNea has since returned to work. He says he plans to take CPR training so he can provide the same life-saving support he received to others in need. 1675

来源：资阳报