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SAN DIEGO (KGTV) — Nearly three-quarters of the students in San Diego County are currently learning from home, and those numbers don’t make a lot of sense to MIT professor Martin Bazant.Bazant is one of the creators of the COVID-19 Indoor Safety Guideline. The free online tool simulates the fluid dynamics of respiratory droplets in various kinds of rooms to show users the risk of different indoor environments.“If you run the numbers for a typical classroom, especially if the students and the teachers are wearing masks, then the amount of time in the room can be very significant,” Bazant said. “Essentially those people could spend a week in the classroom and not have a problem.”Bazant says the six-foot rule that has largely determined which businesses can stay open is overly simplistic. In some cases, he says the rule creates a false sense of security. In other situations, he says it causes the closure of businesses or schools that could safely operate.“If you place nursing home beds six feet apart in a shared room, they are absolutely not safe,” he said. But he said well-ventilated classrooms, with teachers and students in masks, are another story.“It's only the United States where we follow the six-foot rule. That's given by the CDC. The World Health Organization all along has been saying one meter, which is about three feet. If you simply followed the one-meter rule, all our schools would be open, as they are in most of the world right now,” he said.Bazant and his colleague John Bush said they set out to design a tool that would reveal the risk of transmission based on science, not guesswork.Users start by selecting a room type, like a classroom or an airplane. From there, they can control a wide array of variables to dial in the risk, like the room size, the ceiling height, and the ventilation and filtration systems.From there, users can further tune the model by human behavior. How many people are in the room? Are they whispering, shouting or singing? How many are wearing masks?Mask usage is a critical component, Bazant says. The model quickly reveals the challenges of maskless activities in rooms with poor ventilation. Put five people without masks in a 400 square foot room with closed windows, and it becomes unsafe after 33 minutes.Bazant says studies on super spreader events show in indoor environments, the distance from an infected person doesn’t matter. Infected droplets spread and mix throughout the room like second-hand smoke from a cigarette.But with masks trapping droplets and diverting them upwards like a chimney, an environment like an airplane could be safe for several hours, according to the model. With more than 95% of the passengers and crew wearing surgical masks, a Boeing 737 could support 200 people -- around full capacity depending on the configuration -- for 18 hours. 2850

SAN DIEGO (KGTV) - New advertisements against Measure B riled up supporters, who spoke out against the massive development Friday.The commercial states, "Measure B the Newland Sierra project, is a luxury development," something supporters vehemently deny."What I think is disingenuous is making people feel fearful of what can happen in this development," supporter Melinda Vasquez said.Friday, dozens gathered in Kearny Mesa to advocate for Newland Sierra's development project. The group included teachers and firefighters who want more affordable home options in San Diego.RELATED: El Cajon takes risks to help lower cost of housing"Home ownership has become less of a reality for families like mine," Cindy Lopez said. She is a first generation American (her parents moved from Mexico) and a teacher. She teaches first- and second-graders, and comes home to a 12-month-old."Even though she's a toddler we're going to be expanding soon in the future and we're going to need that space, that affordable space to grow our family," Lopez said she is always budget conscious for her family.The county's existing general plan calls for 99 homes and up to 2,000,000 square feet of commercial property with open space. This is located north of Deer Springs Road and west of I-15 near Escondido.RELATED: Renting is cheaper than buying a home, study showsThe County Board of Supervisors approved the project in September 2018, but a group of nearby residents and the Golden Door Spa nearby gathered enough signatures to send it to a countywide vote. The vote will happen March 3. Newland Sierra's public relations firm presented a chart illustrating 2,135 homes that will house families with a various incomes. They said the development will have a spread of apartments for seniors and low low income, affordable town-homes, and individual homes. The highest bracket in the chart showed 1,570 or more. The firm said there will not be any million-dollar homes.The commercial riled up supporters with this line, "according to official county records Measure B requires no affordable housing."RELATED: New development aims to reinvigorate 8th Street in National CityNewland Sierra recorded an agreement on it's deed guaranteeing affordable housing.A statement released Friday by the law group against Measure B states that agreement is, "nothing more than a distraction with no meaningful legal effect."The firm's lawyer for Yes on B said if Newland Sierra didn't follow through, any stakeholder, like those who spoke out Friday, could sue. 2542

SAN DIEGO (KGTV) - Nearly four thousand kids in San Diego County have tested positive for lead poisoning over the past decade, and more than 130,000 have missed crucial tests, according to a new report from the California State Auditor.State law requires all 1-and-2 year old children on Medi-Cal to get lead testing. The auditor's office says that's not happening.According to the study, 61% of the tests that should have happened since 2009 were missed. In San Diego, that number is 59%. Specifically, kids in San Diego missed 130,657 of the 220,782 tests that should have been administered.Meanwhile, 44,418 kids across the state tested positive for elevated lead levels. In San Diego, 3,395 tested positive.Local doctors say it's problematic because lead poisoning is nearly impossible to detect without proper testing."Unless you screen kids, they are almost always asymptomatic," says Dr. Kenneth Morris, the Medical Director of the Children's Primary Care Medical Group. "You have no idea until you do the routine screening."Dr. Morris says infants are especially prone to ingesting lead, which can cause developmental problems throughout life."They're crawling on the floors, and they're putting their hands in their mouth. It's just that much easier for the lead to get into their system," he says.Morris says access is a problem for many families on Medi-Cal. They go to their doctor's office for routine check-ups and appointments, but can't get to the follow up lab visits for testing."If you have to refer a child out to a laboratory, it becomes that much more challenging. Because then it falls on the family to be able to get to a lab or hospital to get their blood drawn and get the test completed," he says. "That can be a real challenge for under-served families. To get to us, they have to get a friend to drive them or take the bus."Morris says many offices are now getting basic testing abilities, but as long as families have to go to multiple locations, this will remain an issue.See the full report from the State Auditor's Office here. 2069

SAN DIEGO (KGTV) – More drive-in entertainment is coming to Escondido’s Westfield North County mall as summer comes to a close.In August, the California Center for the Arts, Escondido (CCAE) hosted several drive-in live concerts at the former Nordstrom parking lot at the mall on 272 E Via Rancho Parkway.From September through November, the same mall parking lot will be the site for weekly drive-in movie screenings. Spaces for more than 250 vehicles will be made available and spaced apart to keep moviegoers safely distanced.Doors for the screenings will open at 6:30 p.m. on a first-come, first-serve basis. Movies will begin at 8 p.m.The schedule for September:Thursday, Sept. 3: CarsThursday, Sept. 10: Inside OutFriday, Sept. 11: Jurassic ParkThursday, Sept. 17: TangledFriday, Sept. 18: Mamma Mia!Thursday, Sept. 24: ShrekFriday, Sept. 25: Indiana Jones: Raiders of the Lost ArkThe schedule for October and November is expected to be unveiled sometime in mid-September.Tickets are per car and can be purchased at artcenter.org/events or by calling 800-988-4253.Snacks can be bought at the same time tickets are purchased, and special drive-in dinner boxes and specials can be purchased at the screenings through the mall’s restaurant partners.A portion of ticket proceeds will benefit the CCAE, Escondido Community Foundation and Central San Diego Black Chamber of Commerce Foundation. 1406

SAN DIEGO (KGTV) - Police have released surveillance video in hopes the public can identify a group of people suspected of stealing more half-a-million dollars' worth of items from the Hermes de Paris store at Fashion Valley Mall. 238