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Scientists and medical professionals across the country are working to learn about the coronavirus’s effect on children. There's still a lot they don't know about how the virus affects children.With children often not showing as many symptoms as adults, experts say kids can help us learn more about the novel coronavirus. Dr. Beth Thielen, a pediatric infectious disease physician and professor at the University of Minnesota, says people could be looking to children, especially as they go back to school, to find out more about the coronavirus."I mean, I hope so. I think this provides a very rich opportunity to understand a lot of basic things about the immune system and why diseases manifest differently in adults and children," says Dr. Thielen.Dr. Thielen says from possible protective measures of the MMR vaccine in children to t-cells, there's so much people can learn from how children's bodies combat viruses."It is thought that t-cells play a substantial role in helping to clear viral infections from the lungs. There are people looking at t-cell responses but they've lagged a bit behind with the data coming out on t-cell responses hasn’t been as prominent as the antibody studies," says Dr. Thielen. She adds, the reason people are looking at t-cells and children is because t-cells decline with age."I think they are critical. We all have them, they work to protect us from infection and potentially they are more efficacious in younger people potentially. Although, I think that really hasn’t been clearly worked out for SARS COV2," says Dr. Thielen.Dr. Jay Varkey, an epidemiologist at Emory Hospital in Atlanta, Georgia, agrees. Dr. Varkey says scientists are also looking into why children older than 10 years old, are more likely to have more serious symptoms with COVID-19."I think the reasons for that are complex. I think part of that might be related to some sort of existing t-cell immunity, and to what that is whether that’s to memory cells that are acting against a previous seasonal coronavirus that would just cause cold like symptoms, or whether its related to something more complex -- I don't think we’re there in terms of understanding," says Dr. Varkey.Dr. Varkey says, while children can help us understand COVID-19 better, it's also up to the adults to make sure they're growing up in a healthy, safe environment."We will learn much from kids but one of the messages we’ve been emphasizing in the hospital is that if we, again- and I answer this both not just as an infectious disease physician but also as a parent to two school age kids--we as adults have a responsibility to try and make our community safe to actually allow in-person learning," says Dr. Varkey."I think that we often think of children as getting a lot of these infections and the fact of the matter is most adults are getting exposed, as well, but our immune systems are sort of experienced at seeing them and we don't get sick," says Dr. Thielen.Dr. Thielen is a member of the Pediatric Infectious Disease Society and says she and other doctors in their scientific groups are advocating for more pediatric research to truly understand how certain diseases, including COVID-19, behave in children. 3217

SANTA ANA, Calif. (KGTV and AP) — A former Camp Pendleton Marine was found guilty Wednesday of the murders of five women in Southern California more than two decades ago, including a San Diego woman in 1988.Orange County jurors convicted Andrew Urdiales of five counts of murder with enhancements for attacking a volunteer usher after a college piano concert and picking up four prostitutes, driving them to remote or deserted areas, having sex with them and killing them.The verdict raises to eight the number of women killed by the 53-year-old former Marine.Urdiales was previously convicted of killing three women in Illinois in 2002 and 2004. He was given a death sentence that was commuted to life without parole after Illinois barred the death penalty.He was extradited to California in 2011 to stand trial in the murders of five women in Riverside, Orange and San Diego counties between 1986 and 1995. For these killings, California prosecutors are seeking the death penalty.RELATED: Ex-Marine linked to 1986 killing in San DiegoThe penalty phase of the trial will begin Thursday for jurors to evaluate whether to recommend a death sentence for Urdiales or life without parole.Attorneys declined to comment publicly on the verdicts before the trial has concluded.Authorities said Urdiales, who moved to Southern California in 1984 as a 19-year-old Camp Pendleton Marine, killed four women while in the military and a fifth while vacationing in Palm Springs in 1995.According to police and prosecutors, then-Marine Andrew Urdiales shot 31- year-old Maryann Wells in the head in a deserted industrial complex on Second Avenue in downtown San Diego after having sex with her in the early morning hours of Sept. 25, 1988.He then allegedly took back the he had paid the victim and fled, leaving behind a condom from which investigators obtained genetic material that eventually implicated him in the slayingUrdiales attacked 23-year-old Robbin Brandley after a jazz piano concert in 1986 at an Orange County community college and stabbed her to death in the parking lot. Two years later, he picked up Julie McGhee, a 29-year-old prostitute, and drove her to a remote area, had sex with her, shot her in the head and left her body in the desert, authorities said.Urdiales went on to attack and kill three more Southern California women and three Illinois women who were working as prostitutes, authorities said.The California murders went unsolved for more than a decade until Urdiales was arrested after he returned home to Illinois.Authorities stopped Urdiales in 1996 and found a weapon in his truck that he wasn't allowed to carry, prosecutors said. The next year, authorities matched the weapon to the one used to kill the Illinois women and arrested him for those murders. 2796

SANTEE, Calif. (KGTV) -- Schools in the Grossmont Union High School District reopened for in-person learning Tuesday, allowing students back on campuses for the first time since the onset of the COVID-19 pandemic in March.A large number of students began in-class instruction on Tuesday, but there were many others who chose to remain at home for distance learning.ABC 10News was at Santana High School in Santee on Tuesday morning as students with masks on trickled onto campus. Each student underwent a health screening before heading into their classrooms.Under the district’s blended learning plan, reopening campuses to a limited number of students is step 2 out of 5. Each school will only have 25 percent of students on their campuses. These students have been split up into different groups A-D depending on factors like their course schedule.RELATED: In-person learning to resume for some in the Grossmont Union High School DistrictThe groups determine which day the students will come to school. Each group will attend in-person learning once a week; the rest of the time they’ll be learning from home. Class sizes will be made up of 8 to 12 students.GUHSD Superintendent Theresa Kemper said it took a lot of organization and brainstorming to make the plan work, making sure they followed the state COVID-19 guidelines while juggling the daily campus routines.Kemper “At the secondary level, you have students traveling to multiple classrooms, and so it took a lot of work in how to break them up in groups so we can have the hybrid model."As for the full-time distance learners, Kemper said they will continue on with their schedule as planned until they can fully reopen their schools.Kemper also added that the district will see how things will go in terms of in-person learning and they’ll continue monitoring the state COVID-19 numbers as they figure out the next step in their reopening plans. 1917

SAN MARCOS, Calif. (KGTV) - After a heart attack nearly killed him at age 46, Adam Bavario is now thanking his doctors, and his dog.For 27 years Bavario was a medic and police officer in Los Angeles. He says while he loved the job it caused a lot of added stress on him physically and mentally. During his 30's Bavario started having health issues and chest pains, but every time doctors ran tests they couldn't find anything wrong.The misdiagnosis almost killed him five months ago. "I knew I was having a heart attack. I went to grab my phone and passed out on the floor," said Bavario.He was suffering one of the deadliest heart attacks, known as the widow maker. "One of his major arteries was 100 percent blocked, and if that doesn’t get opened in time or quickly, there's a potential for something catastrophic," said Dr. Karim El-Sherief, an Interventional Cardiologist at Tri-City Medical Center.While unconscious, Bavario's sleeping dog Roxy awoke and sensed he was in trouble, licking and nudging him until he woke up. “The ironic thing about Roxy is Roxy is completely deaf from birth, she had enough awareness to come in and get me up," said Bavario.He was able to call 911 and then first responders from the San Marcos Fire Department got Bavario to Tri-City Medical Center in minutes. Dr. El-Sherief and his team were able to treat Bavario in record time for the hospital, 27 minutes. Now Bavario is using his free time to advocate for cardiac awareness. "What I can tell you is get checked out, do your routines," Bavario says.Dr. El-Sherief says with proper screenings along with diet and exercise, these heart attacks can be prevented. One screening they perform can predict a person's risk in the next 10 years. Learn more about heart screenings available at Tri-City Medical Center. 1810

SAN MARCOS, Calif. — A report of a man shooting his wife at their North San Diego County home Tuesday may have been a swatting call, San Diego County Sheriff’s Deputies said.Deputies got a call indicating a man had opened fire on his wife at a home near San Elijo Park in San Marcos about 2:30 p.m. local time on Wednesday.Investigators surrounded the home, breaking down the door with guns drawn. They found the man unarmed on the balcony. No victim was in the home. Several schools were temporarily placed on lockdown. The man’s wife later arrived at the scene, unaware of the situation. The woman, who did not want to be identified, said she and her husband are gamers with millions of followers. "People always have an opinion and they may not like what you do or say and sometimes it’s taken to an extreme when they call the cops on you," said the man's wife. The wife said her husband had no idea deputies had entered the home until he heard shouting. He usually wears a headset while he's playing. "He heard 'this is the police' ... he took his headset off and he came downstairs, and he saw guns being pointed at him. He wanted to show his hands because he was afraid to get shot," she said. The call made to deputies was traced back to a doctor’s office in Michigan, according to the San Diego County Sheriff’s Department. Deputies confirmed the call was a hoax.Swatting is the practice of making a hoax call about a crime to draw law enforcement officers to a specific location.The San Marcos man said he had been playing an online game when the incident happened.This story has been updated from the initial Sheriff's Department report that a woman had been shot at the home.  1755