呼和浩特内痔带来的危害(呼市动个混合痔手术多少钱) (今日更新中)

SAN DIEGO (KGTV) — The back-to-back announcements of promising clinical trial results from Pfizer and Moderna may usher in a new era for vaccine technology.Both companies have candidates that rely on a new kind of vaccine strategy: RNA. Preliminary data show both candidates are more than 90 percent effective.On the surface, the vaccine candidates look like any other you’ve taken. They work by training your body to build up defensive weapons against a virus, like antibodies and T-cells.But instead of training your body by introducing a killed virus or a fragment of a virus, the vaccines from Moderna and Pfizer introduce a set of instructions called messenger RNA enclosed in a little blob of fat.“The key concept of RNA is that they’re messages, and they’re meant as short-term messages,” said Dr. Shane Crotty of the La Jolla Institute for Immunology.Crotty said there are 5,000 to 10,000 messages within a cell at any given time.Once administered, the mRNA in the vaccine instructs some of your cells to make the coronavirus’ signature spike protein. The spike protein on the surface of the coronavirus allows it to infiltrate and hijack cells.Even though the spike protein is just one of about 25 genes the virus has, preliminary results from the clinical trials suggest it is enough material to train the immune system without making the recipient sick.Crotty likened the process of training the immune system to spotting a sedan. If the coronavirus is a car, the spike protein might be the door.“There's no way that car door could turn into a whole car, but it's enough of a piece of a car for your immune system to recognize that car if it saw it again,” he said.Scientists started by sequencing the virus’ DNA from a sick patient, then encoding that genetic sequence into an mRNA instruction molecule that can be read by the manufacturing part of cells.From there, Dr. Crotty said it’s a bit like the messenger app Snapchat.The mRNA gets injected into the body, sending temporary instructions to your cells that last for a while, then disappear. mRNA does not genetically modify cells, he stressed.“They’re around as messages for some period of time and then they go away, and the cells get back to their normal job of reading their own messages instead of reading the messages you’re injecting in the vaccine,” he said.The concept has been around since the 1990s, but there are currently no RNA vaccines on the market for any pathogen, so Dr. Crotty said it’s hard to estimate how long their protective effects will last.Some vaccines offer a lifetime of protection, like the measles vaccine. Others offer decades of protection. The flu vaccine only lasts about six months.Dr. Crotty said the length of protection depends on how fast the virus mutates and how long the immune cells survive in the body.But even if the COVID-19 vaccine turns out to need an annual update, he’s optimistic. The best feature of RNA vaccines is that they can be quickly reprogrammed.Both Moderna and Pfizer are still in their Phase 3 trials, but they expect to finish them by December. Together, they estimate they’ll have enough doses for about 35 million people by the end of this year, primarily for healthcare workers and high-risk individuals. 3250

SAN DIEGO (KGTV) — The County Board of Supervisors voted Tuesday to send a letter to Gov. Gavin Newsom requesting they be allowed to reopen the local economy.The board voted 4-1, with Supervisor Nathan Fletcher voting "no," to take further steps into reopening amid the coronavirus pandemic. The letter requests San Diego County be permitted to reopen gyms, hotels, nail salons, wineries and breweries, churches at full capacity, theme parks, youth sports, charter and fishing boats, community pools, and museums, Supervisor Jim Desmond tweeted.Following the vote, Desmond said in a statement that it will be up to Newsom, but that most of the board believes the county is ready.RELATED: Passive recreation activities now allowed at San Diego County beaches"Just now, the Board approved a plan telling the Governor we are ready to open for business. It's ultimately up to the Governor to decide, but the message is clear from the Board of Supervisors, we are ready to open," Desmond's statement read.It wasn't immediately clear what specific limits these businesses would be required to operate under if allowed to reopen. Though, the county has released reopening criteria (available here).Fletcher said he could not support the measure to send the letter to the state because he believes "we should stay the course in opening in a safe, responsible and systematic way."RELATED: San Diego County allows churches to reopen with limits"We have had success in our re-opening because of the approach we have taken and not in spite of it. While I agree with the need to continue our safe reopening, and believe a number of additional entities are ready to open at this time I could not support the calls by my colleagues to reopen higher risk entities like churches at full capacity immediately," Fletcher wrote. "I look forward to additional progress in the coming days and weeks but do not support this reckless approach."The board also voted to immediately reopen all beach activities and requested a staff report on how COVID-19 has impacted San Diego's most vulnerable populations.As of Tuesday, San Diego County reported 7,554 coronavirus cases and 269 deaths. 2170

SAN DIEGO (KGTV) — The county Medical Examiner has identified the second teenager killed after a car lost control on a Mission Valley freeway and crashed before bursting into flames last weekend.David Chavez, 15, was killed by blunt force trauma, thermal cause, and smoke inhalation according to the ME in the tragic crash on Jan. 18.Police say a car was speeding at about 3 a.m. on the westbound Interstate 8 ramp to southbound State Route 163 when the driver lost control and hit a guardrail, sending the car down an embankment where it a tree and caught fire.RELATED:Community helping family of teen killed in Mission Valley crashAt least 2 dead in fiery freeway crash in Mission ValleyAnother 15-year-old, identified as Gustavo Beltran, was also killed in the crash.The driver, a 17-year-old, was arrested by CHP on suspicion of DUI. Two other teens in the car are also battling significant injuries. None of their identities have been released by authorities. 972

SAN DIEGO (KGTV) - The family of a YouTube star who drove his McLaren the wrong way on the 805 last year, killing a mom and her daughter, are suing the City of San Diego, County of San Diego, and the Psychiatric Emergency Response Team (PERT).The lawsuit claims the “horrific and tragic event” was entirely preventable.Eighteen-year-old Trevor Heitmann, known as McSkillet, drove his McLaren the wrong way on the freeway in August 2018, killing Aileen Pizarro and her 12-year-old daughter Aryana. The sports car collided with the family's SUV, which burst into flames.RELATED: Autopsy details mental state of McSkillet before deadly crash on Interstate 805 in San DiegoIn the lawsuit Heitmann's family claims "SDPD was warned by Plaintiff's on the day of, but before his death, that Trevor intended to drive his McLaren at a high rate of speed in the wrong direction on a public roadway, under the delusion that he (Trevor) could drive through vehicles traveling in the opposite direction without incident."Worried about their sons' dangerous intentions and fearing for his well-being, as well as the safety of others, Dr. Mary Rusher, a board-certified psychiatrist, called 911 and made a 5150 request for a psychiatric hold, the lawsuit alleges.The lawsuit claims, "Defendants' purported PERT response team conducted either or both no assessment or the wrong assessment of the mental health status of Plaintiffs' son Trevor, pursuant to and under California Welfare and Institutions Code 5150."RELATED: YouTuber's parents requested psychiatric evaluation before deadly I-805 crashIt alleges, defendants also failed and refused requests to take Heitmann into protective detention to transport him to a designated evaluation and treatment facility."As a consequence, and despite Plaintiffs' attempts to ensure their son's safety and the safety of others by blocking the driveway of their residents, Trevor later that day left his residence and drive the McLaren to the Interstate 805 Freeway where he was killed in the beforementioned collision, which also tragically took the lives of the Pizarros."A spokesman for the County of San Diego told 10News they couldn't comment.RELATED: Son remembers mother and sister after release of driver's autopsy in deadly 805 crashAs of this writing, officials with the City of San Diego and PERT have not responded to 10News requests for comment.This is the third lawsuit filed regarding the 2018 crash. Two other lawsuits were filed by family members of the mother and daughter killed in the crash. 2545

SAN DIEGO (KGTV) - The California Senate will vote this week on a bill to add a surcharge to utility bills, with the money going to pay for damages caused by wildfires.Governor Gavin Newsom says he wants the bill on his desk to sign by Friday before the legislature takes its summer break.According to the text of Assembly Bill 1054, each utility company would have to "collect a nonbypassable charge from its ratepayers to support the Wildfire Fund." That money would go to pay for damages from wildfires caused by utility companies.But the fund can only be used if the utility companies comply with state safety laws and regulations.The bill also requires each electric company to file a wildfire mitigation plan with the state every three years, and update it yearly.Critics say it's nothing more than a tax, passing the responsibility of wildfire damage away from the utility companies and onto rate-payers."This is going to be a tax that will go on, who knows how long," says Richard Rider from the San Diego Tax Fighters. "Long after the utilities have buried their wires, long after the risk has dropped dramatically, the ratepayers will still be paying it."Rider says this bill would unfairly make people in low-risk areas pay into a fund that would only benefit people in high-risk areas.RELATED: PG&E equipment may have caused Camp FireAn SDG&E spokesperson says the company does not have an official position on AB 1054 but sent a statement to 10News saying:"We believe this bill is a good starting point for legislation to be enacted by July 12 to help address some of the legal, regulatory and policy challenges facing California, as the state grapples with the wide-ranging impact of catastrophic wildfires. We look forward to reaching a final agreement with the Governor and Legislature that meaningfully addresses the crisis posed by wildfires. Their sense of urgency in dealing with the situation is commendable."The bill will be in the Senate Appropriations Committee on Monday. It has already passed through the Assembly. 2052

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