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SAN DIEGO (KGTV) — In their push to reopen schools, some political supporters of President Donald Trump have cited COVID-19 research from a group of San Diego scientists, claiming it’s evidence we could be close to herd immunity from the virus.But one of the authors of that research says that conclusion is way off.One of the most prominent supporters of the herd immunity conjecture is Dr. Scott Atlas, a neuroradiologist and senior fellow at Stanford University’s Hoover Institution who became an adviser to President Trump this month.“There’s a pretty good chance that herd immunity requires way less infections because of existing immunity out there,” Atlas said in a livestream conversation with San Diego County Supervisor Jim Desmond. “It actually may have already been reached in places like New York. We don’t know, but it’s possible.”Herd immunity is the level of protection needed to effectively stop the virus from circulating, thought to be about 70 percent of the population. The “existing immunity” to which Atlas is referring has to do with T cells.“It's just a misunderstanding of the science,” said Dr. Shane Crotty, a virologist at the La Jolla Institute for Immunology who co-authored the groundbreaking research on T cells in June.Crotty and his colleagues found that 50 percent of people unexposed to the novel coronavirus had T cells that could recognize it. Scientists refer to this as cross-reactive T cells, and the study was replicated in other countries.Proponents of the herd immunity theory take the number of people infected with the coronavirus, add the number of people with T cells that can recognize the virus, and come up with a number around the herd immunity threshold of 70 percent. But the math doesn’t work that way, according to Crotty, in part because T cells only kick in once a virus has hijacked cells, meaning T cells alone can't stop a pathogen in its tracks.“We’re not saying those 50 percent of people have protection like they’ve already had the virus,” Crotty said. “We’re saying those 50 percent of people have a head start in responding to the virus, which is a good thing but doesn’t affect herd immunity.”Since the novel coronavirus is a new pathogen, scientists did not expect people would have tools in their immune system capable of recognizing it. Unexposed people do not have cross-reactive antibodies, Crotty said.But in a study published this month in Science, Dr. Crotty and his colleagues offered a potential explanation for the surprising T cell results: they found these cross-reactive T cells also recognized four other coronavirus strains that cause common colds.Their theory: the T cells were created in response to other coronaviruses but can recognize SARS-CoV-2 like a distant relative.“It's a memory of a cousin,” Dr. Crotty said.That memory may speed up the body’s immune response, which can normally take about a week for an unknown pathogen, Crotty said. But scientists aren’t sure yet what role T cells actually play in clinical outcomes.“We have no data and and neither does anybody else as to whether these T cells really help or not,” Crotty said.To answer that question, scientists would need blood samples for lots of healthy people and then they would have to closely study individuals who got infected.The La Jolla Institute for Immunology is raising money for that kind of research, Crotty said, but they’re not there yet. 3417

SAN DIEGO (KGTV) — In October, members of ICE, CBP and USBP held a meeting with several organizations in San Diego, telling them the Department of Homeland Security would be ending a policy known as “safe release.”That’s according to a lawsuit filed Wednesday by the County of San Diego against Kirstjen Nelson, secretary of the Department of Homeland Security.The policy of safe release had been in place since at least 2009. Under it, ICE would work with asylum seekers who had made it legally across the border to connect with family or sponsors in the United States. ICE officials would coordinate transportation as well, making sure the migrants made it to their final destinations.At the meeting in October, federal authorities notified Jewish Family Service and the San Diego Rapid Response Network that ICE would no longer be providing that service.“When that policy ended we quickly began to notice there were moms and children being dropped off at the bus stations here in San Diego,” said Michael Hopkins, CEO of Jewish Family Service. “We realized pretty quickly that we needed to create some type of shelter so that we didn’t have families sleeping on our sidewalks and adding to our homelessness problem in San Diego.”Since October, Hopkins estimates they’ve helped nearly 12,000 migrants in San Diego.On average, they take in 50 to 100 people per day, but it can fluctuate.“Last week we had nights when it was over 200,” said Hopkins.The shelter has moved around several times, but in March, the County announced it would allow the Rapid Response Network to operate the shelter out of the former family courthouse in Downtown San Diego.The operation has cost about .3 million, according to the County.It’s come from a mix of donations and money given to the county by the state.In a statement from DHS, officials told 10News, “until Congress acts to address the obvious drivers of the crisis and gives the Department the proper resources, we will continue to refine and adapt our processes to address our many priority missions to the best of our abilities.” 2083

SAN DIEGO (KGTV) — It's become the first question when considering a cell phone plan: How's the coverage?In San Diego, AT&T customers may find they have better luck than other carriers, according to a study by PC Mag.Locally, 19 locations were tested around the county — from Chula Vista to La Jolla and out to the College East area — between May 7 and June 1, 2019. Testers ran speed software every two minutes on sets of Samsung Galaxy S10 series phones for about 15 minutes in each location.For San Diego County, AT&T scored the "fastest" title ahead of T-Mobile, Verizon, and Sprint."In San Diego, AT&T had nearly double the average download speed of the next-fastest network, with excellent reliability," PC Mag writes. "The carrier has been spreading its 5G Evolution LTE improvements up and down the California coastline, and we really saw the positive benefits this year."AT&T's average download speed was recorded at 90.7 Mbps, compared to Sprint's 51.5 Mbps, T-Mobile's 44.2 Mbps, and Verizon's 36.4 Mbps averages. Uploads over 2 Mbps were successful 97% of the time on AT&T's network, 96% on Verizon, 94% on T-Mobile, and 74% on Sprint.Overall, AT&T, T-Mobile, and Verizon were all given a 100% reliability score. But when it came to speed of network, AT&T grabbed a perfect score, followed by T-Mobile, Verizon, and Sprint."AT&T and Verizon both plan to bring 5G to San Diego this year. As they're millimeter wave networks, you should expect to see them in dense parts of downtown and the Gaslamp District; you'll be relying on 4G in most of the sprawling San Diego metro area for years to come," PC Mag writes.PC Mag's full study and methodology can be found here. 1717

SAN DIEGO (KGTV) - It's been 13 years since Filirican Torres died after being hit by a car on the 94 Freeway, and her family says every passing holiday and anniversary brings the pain back to the forefront."It feels like someone is stabbing you in the heart over and over again," says sister Edy Torres.Friday is the anniversary of the death, which is still unsolved. Now the Torres family is asking anyone with information to come forward and help them get closure."Maybe they heard something in the last 13 years," says Torres. "Maybe they heard her name or something came up. Help us out."The family says Torres was thrown from a car on the freeway on January 10, 2007, and then hit by several other cars on the road. It happened on the Eastbound lanes of the 94 in between Euclid Avenue and Kelton. At the time, San Diego Police called the death "suspicious." In 2009, Crime Stoppers released a photo of a white Geo Metro as a suspect vehicle, but they never made any arrests."She was a loving person," Torres says of her sister. "When you met her she would put a smile on your face. She had this aura where you would just gravitate to her."As they have for years, the family is putting up posters around the area where the crash took place."It's been 13 years," says Edy. "Time hasn't healed anything. We just learn to cope with the pain."Anyone with information is asked to call Crime Stoppers at 888-580-8477. 1424

SAN DIEGO (KGTV) — Local officials say the county has been cleared to reopen more businesses ahead of the state, including gyms, hotels, bars, day camps, and museums.According to the county, the following businesses would be allowed to reopen no earlier than June 12, pending approval by local health officials:GymsHotelsBars/wineriesZoos and indoor museumsFamily entertainment facilities (bowling alleys, batting cages, etc.)Day campsCampgroundsPro sports without fansFilm and TV productionCard roomsSan Diego Supervisors sent a letter to Gov. Gavin Newsom last week requested the expanded reopenings.Friday, the state released new guidance on reopening sectors of the economy including the businesses listed above for variance counties, of which San Diego is included. The state's criteria for sectors can be found here."The following guidance should be implemented only with county health officer approval following their review of local epidemiological data including cases per 100,000 population, rate of test positivity, and local preparedness to support a health care surge, vulnerable populations, contact tracing and testing," the state's website reads.RELATED:California to let schools, gyms, bars reopen next weekSan Diego to reopen several shoreline parks, piers, boardwalksSan Diego Supervisors request state allow gyms, pools, theme parks to reopenThis week, San Diego County allowed sitting and relaxing on beaches to resume and announced that beach parking lots would reopen and beach activities will resume within household units on June 9.The City of San Diego also announced this week that several popular piers, boardwalks, and beach parks would reopen this month.As of Friday, San Diego County had reported 8,180 coronavirus cases and 294 deaths. About 1,397 people have been hospitalized with the virus. 1833