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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) - Police have confirmed that the 19-year-old woman shot near Sunset Cliffs Thursday morning was targeted. Police told 10News they received a call at about 7:10 a.m. from a person who spotted a bleeding woman lying on a staircase next to the beach off Ladera Street, near Sunset Cliffs Boulevard.Responding officers arrived and found the woman with multiple gunshot wounds.The 19-year-old was taken to UC San Diego Medical Center. Police said Thursday afternoon that the woman is in stable condition and was able to tell police she had no idea what happened.Police said they do not have any information on a suspected shooter at this time.Police told 10News they have not been able to find anyone who heard gunshots or saw what might have happened. 792

SAN DIEGO (KGTV) -- One person was killed and five people were injured after a crash near Scripps Ranch Sunday afternoon.The crash happened around 1:30 p.m. at the intersection of Pomerado Road and Avenue of Nations near Thurgood Marshall Middle School.Police said an 18-year-old driver and one passenger in a gray BMW were heading home from a basketball tournament when they swerved into oncoming traffic.They crashed into a white Chevy with four people inside, all between the ages of 70 and 90.The driver of the Chevy sedan, a 90-year-old woman, died from her injuries, police said.At least five ambulances were requested at the scene, according to authorities.The cause of the crash is unknown at this time, but the driver told police he had mechanical trouble with his brakes. Alcohol and drugs are not considered a factor in the accident, police said.   917

SAN DIEGO (KGTV) -- Police made a shocking discovery during a traffic stop in Del Cerro.The San Diego Police Department tweeted Wednesday: “You don't see this everyday. We made a traffic stop on a vehicle for expired registration in the Del Cerro area. During the traffic stop, officers located a cellphone shaped stun gun, a handgun and a real M203 grenade launcher in the vehicle.”Police did not say when the traffic stop occurred. You don't see this everyday. We made a traffic stop on a vehicle for expired registration in the Del Cerro area. During the traffic stop, officers located a cellphone shaped stun gun, a handgun and a real M203 grenade launcher in the vehicle. pic.twitter.com/K3BtXBhF1H— San Diego Police Department (@SanDiegoPD) October 28, 2020 ABC 10News reached out to SDPD officials for more information on the traffic stop and the weapons seized, but officials did not respond as of the publication of this story. 945

SAN DIEGO (KGTV) – One of the PGA Tour’s most popular events, the Farmers Insurance Open, will once again be held in San Diego, but no fans will be allowed to attend the January 2021 tournament due to the coronavirus pandemic.Event organizers Century Club of San Diego announced Monday that the Farmers Insurance Open is set for Jan. 25-31 at Torrey Pines Golf Course.However, spectators will be prohibited from the tournament site.Century Club CEO Marty Gorsich said, “We recognize that COVID-19 requires dramatic modifications to the operations of our annual event. We have been working closely with the PGA TOUR as well as the County and City of San Diego in our planning. The safety and well-being of everyone affiliated with the Farmers Insurance Open? and our community remains our top priority. While we will certainly miss the energy our fans bring to Torrey, we remain focused on delivering a PGA TOUR competition that showcases the best players in the game set against the backdrop of one of the most storied courses in the world.The Farmers Insurance Open originated as the San Diego Open in 1952. Since 1968, the event has been played at Torrey Pines.“We are grateful for the support from the entire San Diego community throughout the years. Our team is ready and fully committed to continue providing a first-class tournament to benefit our charity partners and showcase the City of San Diego to a national and international broadcast audience,” Gorsich added. 1481