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LA JOLLA, Calif. (KGTV)-- A new article shows that wearing masks is even more critical than previously thought. UC San Diego researchers compiled several global studies that looked into how the coronavirus spreads and found that masks can help stop the spread of many aerosol particles.The idea of wearing masks has become a polarized issue in America. But Dr. Kim Prather, a distinguished professor at the UCSD Scripps Institution of Oceanography, says the science is clear."Masks do filter things, and filtering does reduce the spread of disease. That we know," Dr. Prather said. She and her colleagues released a new article compiling the latest COVID-19 studies around the world. Sneezing and coughing release large spit particles up to 26 feet, so that is clearly a point of concern. But Dr. Prather says we also need to focus on the invisible aerosols that can float around for hours, from asymptomatic virus carriers. "They don't have a fever, they're not coughing, they're not sneezing," Dr. Prather said. "But when they're talking, they can produce thousands of aerosols out in their breath, and infect people for days."That is why she reiterates that wearing masks is imperative."You wear a mask not to protect yourself. You wear a mask because you're being thoughtful and protecting other people," Dr. Prather said. One of the studies compares COVID-19 numbers between Taiwan and New York, which share a similar population. While New York had more than 353,000 positive cases and 24,000 deaths by the time Dr. Prather's paper was published, Taiwan only saw around 440 cases and seven deaths. Dr. Prather attributes Taiwan's drastically low numbers, partly to the quickly enacted masking orders. "Taiwan never shut down. They just wore masks," Dr. Prather said. So what kind of facial masks are most efficient? Dr. Prather says one that fits your face properly would protect you the best. Tightly knit, multi-layered cloth masks are good to rewash and reuse. Bandanas can leave many gaps between the contours of your face, which is why it may not be as effective in blocking out particles. Whatever the style, Dr. Prather says that you see the mask moving up and down while breathing, it is a sign that it is working. The more we protect ourselves now, the quicker we can return to normal. "We can get back to a functioning society if we wear masks," Dr. Prather said. "Until tests come in to play or a vaccine comes into place, it'll buy us time, and we can reduce the spread if we take this seriously."Dr. Prather says that while masks do not block 100% of aerosol particles, it is much better to block some than none. 2638

LA MESA, Calif. (KGTV) -- A suspect was arrested following a robbery at a La Mesa credit union Wednesday morning.According to police, the robbery happened at the Navy Federal Credit Union on the 8700 block of Grossmont Boulevard just after 10 a.m. Wednesday.Police say the suspect brandished a knife and demanded cash after walking into the credit union.After fleeing from the business, the suspect was found driving away from the area by officers responding to the incident.The suspect, Rafeek Karamat, 35, was positively identified using surveillance video from the credit union. Karamat was booked into the San Diego County jail for robbery. 652

Lina Crisostomo's SATs are coming up next week, but college test prep has taken a backseat to funerals, vigils and walkouts.It's been like that since a gunman stormed Marjory Stoneman Douglas High School, killing 17 people and sending Lina running from campus."Homework doesn't really seem that important now," she said Friday, the day before her 17th birthday. "My attention has changed to fighting for these 17 lives."  434

LEMON GROVE, Calif. (KGTV) - Eleven months of waiting and one month of planning led to the moment that brought everyone in the Mount Vernon Preschool classroom to tears.Private First Class in the Army National Guard Brian Salazar served his first deployment in Qatar. He's a combat engineer based out of National City. His wife Krystal painstakingly planned a reunion in their 4-year-old daughter's classroom, to surprise her. Brian's parents, among other family were inside too.His mother, Maria Salazar, said in Spanish she thought of him every time she went to sleep, every time she ate and wondered if he ate or not, if he was suffering or not, these thoughts constantly ran through her mind."I did have those moments where I really missed him and I'd cry myself to sleep knowing that he wasn't there," Krystal said.Brian was focused on his little girl Annabel, "hopefully she's as excited to see me as I am her," he said minutes before walking through the door. His mom saw him first, letting out a joyful laugh and bursting to tears. It took Annabel a few seconds to realize what was happening, soon as she realized the man in the camouflage uniform was her dad, she ran and jumped over classmates to get to him. They collapsed into a group hug and sobbed with joy.The embrace lasting minutes as they held firmly to him, affirming to themselves he's truly home. The first words came from Annabel. He asked if she missed him and she squeaked out a quiet response echoing his words.The emotion bringing everyone in the classroom to applaud.Annabel showed her dad she made an art project of a soldier who mirrored him. When asked, she told him she wanted to go with him to Legoland. 1693

LEIMERT PARK (CNS) - A 5-year-old boy was killed Wednesday when he apparently found a gun that went off in his hands inside a Leimert Park home. Los Angeles police responded at 1:15 p.m. to reports of a shooting in the home in the 2000 block of Van Ness Avenue, and the child was found inside. ``Initially it appears to be a self-inflicted'' gunshot, an LAPD official told City News Service. RELATED: San Diego gun law: New ordinance requiring safe storage or trigger lock for firearms takes effectNBC4 reported from the scene that the child and three siblings were inside the home with a woman, believed to be the boy's adoptive mother, when the shooting occurred. No other injuries were reported. LAPD Cmdr. Alfred Labrada told the station there does not appear to be any evidence of the bullet being fired into the home from the outside. ``We don't have any reason to believe there's any danger to the surrounding community,'' he said. ``We don't have any information there is a round that was fired into the residence at this point. We are looking at that as a possibility, but we don't see that as having occurred at this residence.'' RELATED: 12-year-old girl accidentally shot in the chest by cousin in Fallbrook, deputies sayHe said a gun was found inside the home and it ``is a possibility'' that the child discovered the weapon and it discharged. A man claiming to be the boy's grandfather told Channel 4 his son works as an armed security guard, so the weapon may have belonged to him. 1504