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SAN DIEGO (KGTV) — As temperatures warm up, there is some early research suggesting air conditioning units could increase the risk of spreading COVID-19.One team of researchers swabbed several kinds of air conditioning units and found traces of the virus on one out of every four samples.One of the authors, University of Oregon professor Dr. Kevin Van Den Wymelenberg, said the research “does give us some pause.”Air conditioning units bring in little outside air, particularly when temperatures are very hot, posing a risk that viral particles could be recirculated into rooms, Van Den Wymelenberg said.However, just because the study found traces of the virus in A/C units, it doesn’t prove people can actually get sick from the contaminated air because it’s not yet clear how many viral particles it takes to infect someone, he noted.“Nobody knows what that minimum threshold is so we need to take as many precautions as possible,” he said.Dr. Edward Nardell, a professor in the Departments of Environmental Health and Immunology and Infectious Diseases at the Harvard T.H. Chan School of Public Health, said air conditioning units can generate air currents that can carry large particles farther, similar to what researchers found contributed to the spread of the novel coronavirus disease in an air-conditioned restaurant in Guangzhou, China."You are not socially distanced as much, but you're re-breathing the same air that someone else just exhaled," Nardell said. "We call it rebreathed air fraction, and if someone is infectious, often asymptomatic, you're going to be rebreathing their small particles."This week, a group of 239 scientists from 32 countries asked the World Health Organization to update its COVID-19 guidance to reflect that the virus is airborne.On Thursday, the WHO released updated guidance acknowledging that airborne transmission can’t be ruled out, but stopped short of confirming that the virus spreads through the air.Instead, the WHO said the virus primarily spreads through droplet transmission, where larger particles come out of an infected person’s mouth, then fall quickly to the ground or onto surfaces. In airborne transmission, the particles stay floating for a long time.“I think they’re underweighting the importance of this airborne route based on the best available information,” said UC Berkeley Professor Emeritus William Nazaroff, one of the signatories of the letter to the WHO.He said in a poorly ventilated room, particles might linger for 30 minutes to an hour.Scientists say one of the best ways to protect yourself is to open windows, to increase the circulation of fresh air.Scientists say upgraded air filters in AC units and standalone air purifiers could also help.Germicidal lamps may also be effective, Nardell said. The technology is almost 100 years old, and has been proven effective in protecting against tuberculosis infection.The lamps, which shine ultraviolet light, are set up to shine horizontally, high up in the room to kill floating pathogens.Nardell said the technology can be deployed cheaply and easily in a number of settings.Additional reporting by Lauren Rozyla at WFTS 3159

SAN DIEGO (KGTV) - Cara Knott's family has written a letter to Gov. Gavin Newsom asking that Craig Peyer remain behind bars.In December 1986, Peyer -- then a California Highway Patrol officer -- pulled over Knott on Interstate 15 in the Rancho Penasquitos area. Peyer beat Knott, strangled her, and threw her body over a bridge.Peyer was eventually convicted of killing the 20-year-old San Diego State student in 1988.Peyer's next parole hearing isn't until 2027, but in their letter to the governor, Knott's family says they've learned inmates are being released from Peyer's prison because of COVID-19.“This is precisely NOT a person who deserves to be released early from prison for humanitarian reasons. Officer Peyer showed NO Mercy when he murdered my sister," Knott's sister wrote in her letter to the governor.ABC 10News reached out to California Department of Corrections and Rehabilitation for clarification. CDCR says, at this time, there are no plans to expedite the release of Craig Peyer."He committed a betrayal of trust that's unmatched in San Diego history at my judgment," said Paul Pfingst, who prosecuted the case. "If we don't have room for him in prison, because of a risk that he might catch a disease that all of us have a risk to catch, I think that would be a grievous mistake." 1312

SAN DIEGO (KGTV) — Blake Davis' story is filled with chapters of love and laughter."We used to call him a smiley meatball! He was always a big guy, always in the 100th percentile in terms of growth and just really animated and really fun to be around," said Blake's mom, Leah. But at 14 months old, their seemingly healthy baby stopped breathing at the park. He was revived and rushed to the hospital. "He was diagnosed with pulmonary hypertension, so high blood pressure of the lungs," said Rob, Blake's dad.Doctors told Rob and Leah that this was rare in children. "We were overwhelmed lost, devastated, had no clue what was going on, what his future would be, and felt totally helpless," the couple said.As the months passed inside the hospital, friends and family asked what they could do to help. The family asked that they do something kind in Blake's honor, and share the story on a Facebook page created for Blake."It was this really, really beautiful, uplifting thing happening in the world during our darkest moments," said Leah. Blake was eventually released from the hospital, but months later, his condition then worsened. He needed a lung transplant."Ultimately, on January 2 of 2019, we got the news he was unanimously accepted onto the lung transplant registry. And that was the day he passed," said Leah.But the good deeds continued. "There are a lot that don't cost a penny. Helping someone at the grocery store, planting a tree, cleaning a beach," said Leah. What started in San Diego spread across the country and then the world. "Any selfless act whether it costs money or is free, anything positive and uplifting," said Rob.The Davis family created a website to document the movement sparked by Blake. People can share kind acts inspired by Blake through the website's "good deed tracker."The family also created kindness cards people can use to help share Blake's story. "Ultimately, it keeps Blake alive, it perpetuates his legacy, which is a beautiful one," said Leah and Rob. You can share good deeds and learn more about Blake on the website ForBlake.org. 2091

SAN DIEGO (KGTV) -- Crews battled a house fire in the Lake Murray area, Saturday night.The fire was reported just before 8:40 p.m. in the 8000 block of June Lake Drive, just off of Cowles Mountain Boulevard.Firefighters arrived on scene at approximately 8:42 p.m. to heavy smoke.Details on how the fire started or if anyone was injured were not immediately available. 375

SAN DIEGO (KGTV) - Congress is considering a bill that will push for more transparency in the online event ticketing industry. Included in the reforms would be a mandate that companies disclose the full cost of each ticket, including additional fees, up front.In the current environment, most ticket sites show only the cost of the ticket up front, but add the fees after the customer has begun the process of purchasing the tickets.San Diego Congressman Scott Peters is on the committee considering the bill and questioned leaders from the major ticketing companies during a congressional hearing Wednesday. RELATED: ESPN: Ticket sellers support mandate to show upfront fees"The main thing is that you should know going in what the fees are that you're going to pay," Peters told 10News. The hearing included representatives from Ticketmaster, Stubhub, and AXS.Other contentious issues being considered by lawmakers include battling ticket fraud, transfer of tickets once purchased, and the accusations that companies withhold putting many of the tickets on sale at one time in order to create a false sense of demand and artificially cause the ticket prices to increase.Peters says he thinks Congress will be able to pass a strong bill to create more transparency. "There was a lot of agreement about what we should do in Congress, even among the companies. They'd like to have us set rules that everyone could abide by," Peters said. 1444

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