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SAN DIEGO (KGTV) -- Kevin Luo of Pacific Trails Middle School is getting ready for his trip to Washington D.C. to compete in the Scripps National Spelling Bee.Luo, who is a student at Pacific Trails Middle School, was crowned the winner of the countywide spelling bee in March. Last year's winner, Yash Hande, was also a student at Pacific Trails. Luo said in an interview with 10News that the Hande is helping him prepare for the national Bee.RELATED: Pacific Trails Middle School student crowned winner of countywide spelling bee  Luo also expressed that he is a little nervous to be on the national stage. “It’s probably going to be really intense for the first few days but after that, it will be relaxed.”The Scripps National Spelling Bee will take place May 29-31 in Washington, D.C. 832

SAN DIEGO (KGTV) -- King tides are expected to continue in San Diego on Sunday following a day of flooding in parts of the county Saturday. High tide is set to happen at 9 a.m. with low tide set to take place around 4:10 p.m., according to tide charts. King tides occur when there is an alignment of the gravitational pull of the sun and the moon. RELATED: Sandbags available in San Diego CountySome parts of Imperial Beach already experienced tidal flooding Friday morning as several homeowners reported water entered their homes.The City of San Diego built a three-foot temporary berm along parts of the bay in Mission Beach to help mitigate the risk of coastal flooding. Residents can also check the likelihood of flooding in their area, via FEMA's flood map, here.The next round of king tides are expected to roll in January 20 an 21. 847

SAN DIEGO (KGTV) - KAABOO Del Mar will become KAABOO San Diego in 2020 as the popular music festival held at the Del Mar Fairgrounds moves to Petco Park. The change was announced by its producers Sunday at the end of a sold-out three day festival, its fifth at the North County location. Concerts will be held on Petco Park's playing field, Sycuan Stage at the Park, Lexus Premier Lot, and the Tailgate Lot, KAABOO officials said. “The location of Petco Park and its surrounding venues in downtown San Diego provides fans and artists alike the opportunity to enjoy everything that the vibrant metro area has to offer. We couldn’t be more ecstatic about this partnership and our relocation,” said Jason Felts, Managing Partner of KAABOO. “Our venue and the downtown Ballpark District offer the perfect setting for an event of this magnitude and further establishes Petco Park as the premier entertainment destination in Southern California. We look forward to hosting an unforgettable and amazing weekend in the heart of downtown,” said Erik Greupner, Padres President of Business Operations. The festival will take place Sept. 18-20, 2020. "The Padres will return for the final 6-game homestand of the season (vs. MIN, LAD) just two days after KAABOO. The team is hoping to be competing for a playoff spot. Maintaining field integrity will be critical," 10News Sports Director Ben Higgins tweeted.Tickets are now on sale, including a 9 general admission pass. VIP passes are available for 9 and 99 and include options such as private restrooms, VIP-only performances, access to onstage viewing, and exclusive meet and greet opportunities. 1655

SAN DIEGO (KGTV) -- Kids all over San Diego County are packing up their backpacks and heading back to school, but all those back-to-school must haves add up.With all the clothes, school supplies and essentials on the shopping list, you may be wondering how to save some cash.We’ve compiled a list of ways to save as the kids head back to school. Check out the list below: 379

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