济源市应届生实力升学率-【西安成才补习学校】,西安成才补习学校,濮阳高考冲刺班正规有哪些,秦都区复读高中联系方式,莲湖高二靠谱的哪里好,秦都区复读哪里有专业,渭城区高三补习班效果好,漯河新高一哪里有价格

HAMPTON ROADS, Va. - As coronavirus continues to rage across the country, scientists are inching closer to developing a COVID-19 vaccine.Dr. Doug Mitchell used to be a pediatric infectious diseases specialist at CHKD and EVMS. He is currently the medical director of CHKD Medical Group and a pediatrician at Norfolk Pediatrics.“If we’re able to stick to the science in developing the vaccine, then that would be comforting if we could stick to the science and develop an effective and safe vaccine,” said Mitchell.Mitchell said the speed at which researchers are developing a vaccine to combat COVID-19 is nothing short of a miracle, but sticking to the clinical science behind the advancement is key for an effective and safe vaccine - and that takes time.“The stated goal that I saw by the CDC and/or FDA of wanting a vaccine that shows at least 50% protection and six months of safety data, that takes time,” he said. “We need a chance to show the safety profile of any new vaccine under the parameters of following the best science that we could follow.”Mitchell understands the process involved in developing a vaccine.More than 20 years ago, he was an investigator in several pediatric clinical trials. Many of the vaccines that came out of his lab are still used in children today.While there are still growing concerns about vaccines, the benefits outweigh the risks.“The flu vaccine clearly saves lives, clearly prevents illnesses, but it’s not 100% protective either, but we know it does have benefits,” Mitchell said. “The advantage there is the flu vaccine has been out for decades and we know its safety profile.”Similar to the rapid speed of developing a COVID-19 vaccine, Mitchell said a vaccine for H1N1, better known as the swine flu, was quickly put on the market.“The difference is, we already had decades of history of flu vaccines and their safety, so all that happened was developing the same flu vaccine that was protective against a different strain,” he said. “That’s a different ballgame than starting a vaccine against a totally different virus.”While the research continues, the fight against COVID-19 is far from over.According to Mitchell, the spread of the virus decreases when you reach heard immunity where enough of the population is immune.This story was first reported by Antoinette DelBel at WTKR in Norfolk, Virginia. 2363
Ha llegado el momento para elegir el próximo presidente de Estados Unidos. El voto latino será clave, ya que los latinos constituyen un tercio de todos los votantes elegibles este a?o. Hoy veremos cuál candidato hizo mejor trabajo mostrando su apoyo a la comunidad latina.Según un estudio hecho por el Centro de Investigación Pew, la mayoría de latinos están inclinados a votar por Joe Biden. A la misma vez, hay muchos que apoyaran al Presidente Donald Trump. En estados como Florida, se espera que los cubanos voten por el Presidente Trump por sus esfuerzos de mejorar el país.Los latinos son un grupo diverso porque incluye personas que han estado en EEUU por varias generaciones, pero también a nuevos ciudadanos. Muchos latinos también son religiosos, de fe católica, cristiana, y protestante. A la misma vez, la comunidad LGBT está alzando su voz. También es un grupo complejo porque los latinos americanos vienen de varios países con diferentes costumbres. Expertos de política dicen que si un candidato gana el voto latino, tendrá mejor oportunidad de ganar la elección presidencial.Ahora que el país trata de frenar la pandemia de COVID-19, muchos latinos quieren saber como el próximo presidente tomará control de la economía, el coronavirus, y el cuidado médico. 1281

HONG KONG – Scientists at the University of Hong Kong claim to have the first evidence of someone being reinfected with the coronavirus that causes COVID-19.They said Monday that genetic tests show a 33-year-old man returning to Hong Kong from a trip to Spain in mid-August had a different strain of the virus than the one he’d previously been infected with in March.The man had mild symptoms the first time and none the second time, so his previous infection may have helped prevent serious illness.Experts say waning immunity could have implications for vaccine development and that the case shows the need to keep up social distancing and other prevention measures.Dr. Kelvin Kai-Wang To, who led the group of scientists, told The Associated Press that it’s unknown how many people can get reinfected, but there are probably more out there.Even if someone can be infected a second time, it’s not known if they have some protection against serious illness, because the immune system generally remembers how to make antibodies against a virus it’s seen before. 1069
GARDEN GROVE, Calif. (AP) — The man who killed four people and wounded two others in random stabbings across two Southern California cities is a gang member with a violent criminal record who had served time in prison, authorities said Thursday.Zachary Castaneda "could have injured or killed many other people" had he not been arrested Wednesday while carrying out attacks and robberies during the two-hour wave of violence that began in Garden Grove, the city's police Chief Tom DaRe said.It wasn't immediately known if Castaneda, 33, had a lawyer who could speak on his behalf. He was scheduled to be arraigned Friday.Castaneda was taken into custody when he walked out of a convenience store in the neighboring city of Santa Ana, dropping a knife and a gun he had taken from a security guard he had just killed, police said. The suspect was covered in blood, DaRe said.Castaneda was kept in restraints as detectives tried to interview him, the chief said at a press conference."He remained violent with us through the night," DaRe said. "He never told us why he did this."Castaneda has a conviction for possession of meth for sale while armed with an assault rifle, DaRe said. Investigators were still putting together his entire criminal history, he said. Officials didn't specify what crimes sent Castaneda to prison or when he was released.The violence appeared to be random and the only known motive seem to be "robbery, hate, homicide," Garden Grove police Lt. Carl Whitney told reporters.Whitney said police had previously gone to Castaneda's Garden Grove apartment to deal with a child custody issue. The suspect's mother had been living with him and had once asked police how she could evict her son, he said.The attacker and four of the victims were described as Hispanic, while two victims were described as white, police said in a statement. Initially, all had been described as Hispanic. There was no indication this was a hate crime, DaRe said.The two people who were wounded were expected to survive.One of the dead was identified by his son as a hard-working immigrant originally from Romania.Erwin Hauprich said in a telephone interview that his father, Helmuth Hauprich, 62, called him Wednesday afternoon and told him his Garden Grove apartment had been burglarized. The father said his passport, green card, sword collection and even a dining table were taken.Erwin Hauprich said his father never called back and he went to check on him after hearing there had been a stabbing at the complex.A police officer told him that Helmuth Hauprich had been taken to the hospital, where he died, the son said. He said he was told his father's roommate was killed in the apartment.A body was removed from the complex by stretcher Thursday.Erwin Hauprich said his father left Romania first for Germany and then the United States more than two decades ago. He said his father worked on an assembly line and lived in the complex for years.He said Helmuth Hauprich was a down-to-earth man who strove to make a life for his family.Police said surveillance cameras caught some of the carnage."We have video showing him attacking these people and conducting these murders," Whitney said.Whitney said the man lived in a Garden Grove apartment building where he stabbed two men during some kind of confrontation. One man died inside and the other at a hospital.Whitney said a bakery also was robbed.The bakery owner, Dona Beltran, said she was sitting in her car charging her cellphone when she saw a tattooed man get out of a Mercedes and go inside the business. Beltran, 45, followed him inside to offer help, but kept quiet when she saw him trying to open the cash register.She then ran out of the shop and yelled she was being robbed before taking refuge in a nearby dental office, she said. He ended up taking the entire register with him, which had about 0, she said."I saved myself because I was in the car," she said in Spanish on Thursday. "Thank God I am alive."The man also robbed an insurance business, where a 54-year-old employee was stabbed several times and was expected to survive.The woman "was very brave," Whitney said. "She fought as best she could."An alarm company saw the robbery on a live television feed and called police.The man fled with cash and also robbed a check-cashing business next door, the lieutenant said.Afterward, the attacker drove up to a Chevron station, where he attacked a man pumping gas "for no reason," Whitney said.The man was stabbed in the back and "his nose was nearly severed off his face," the lieutenant said.Undercover detectives tracked the suspect's silver Mercedes to the parking lot of the 7-Eleven in Santa Ana and within a minute the man emerged from the store, carrying a large knife and a gun that he had cut from the belt of a security guard after stabbing him, Whitney said.Police ordered the man to drop his weapons and he complied and was arrested.Police then learned that a male employee of a nearby Subway restaurant also had been fatally stabbed during a robbery, Whitney said.The brutal and puzzling attack came just days after a pair of mass shootings in Texas and Ohio left 31 people dead and stunned the nation.___Associated Press reporters Robert Jablon, John Antczak and Christopher Weber contributed from Los Angeles 5309
GENEVA (AP) — The World Health Organization has an unwelcome but potentially life-saving message for the holiday season: Don’t hug. To stop the spread of the coronavirus, WHO’s emergencies chief, Dr. Michael Ryan, said Monday that the “shocking” rate of COVID-19 cases and deaths, particularly in the U.S., mean that people shouldn’t get too close to their loved ones this year. That means with or without a mask on. “The epidemic in the U.S. is punishing. It’s widespread," said Dr. Michael Ryan. "It’s quite frankly, shocking, to see one to two persons a minute die in the U.S. — a country with a wonderful, strong health system (and) amazing technological capacities,” he said.Dr. Ryan called the pandemic “brutal” in the U.S., which accounts for about a third of all COVID-19 cases globally. As of Tuesday morning, there were more than 67 million confirmed cases of coronavirus around the world since the pandemic started, and almost 15 million of those cases are in the U.S. There are just over 1.5 million deaths from COVID-19 around the world, and almost 285,000 of them are in the U.S. Maria Van Kerkhove, WHO’s technical lead on COVID-19, said most transmission happens among people who tend to spend a lot of time together sharing meals and indoor spaces, in workplaces or homes — but it’s sometimes hard to “disentangle” how exactly the virus was spread.Added Ryan: “It’s a horrible thing to think that we would be here as the World Health Organization saying to people, ‘Don’t hug each other.’ It’s terrible.” 1529
来源:资阳报