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SAN DIEGO (KGTV) — The latest surge in coronavirus cases has led Girl Scouts San Diego to cancel all in-person gatherings, meetings, and events for the rest of 2020. The decision comes just three weeks after the resumption of in-person troop meetings had been approved.Christa Sherman, Troop Support Manager for Girl Scouts San Diego, told ABC 10News the decision is the responsible one and is widely supported by troops across the county. "Our Girl Scouts are so resourceful and they really want to do what’s best for their communities, for their schools, for their troops," Sherman said.Both the national and local organizations have been building up their ability to support virtual meetings since the beginning of the pandemic. Troop leaders have access to lesson plans and videos. They can bring necessary materials to drop off at scout's homes before the meetings."We’ve had better attendance at meetings, which is crazy, virtually then sometimes when we were meeting in person," said Elise Hilliard, a troop leader in the South Bay.Even camp-outs are now being done virtually. Kids set up tents in the yard or build forts inside. They set up their mobile device so they can share the experience with their friends. Hilliard said the experiences may be different, but that hasn't changed the Girl Scouts mission. "We’re still definitely trying to make the world a better place, even if from a distance," said Hilliard. 1432

SAN DIEGO (KGTV) - The fate of a beloved torrey pine - saved from the chopping block more than seven years ago - is once again in question.Along tree-lined Long Branch Avenue, one tree has captured the hearts of Jeff Ray's family."My kids loved it.  They touch it all the time.  It's wonderful," said Ray.The towering torrey pine is believed to be about 90 years old."It signifies the beauty of nature and the history of the area," said Ray.The history includes safety concerns. In 2010, with the sidewalks buckling, city experts deemed it a safety hazard, concerned the leaning tree would fall over. Upset neighbors hired their own arborist. Eventually, the city relented, deeming the tree stabile and repairing the sidewalks.  Since then, the tree has been granted Heritage status, giving it extra protections. Still, safety concerns remain.  On Wednesday afternoon, a city advisory panel met and the city's forester told the group the tree isn't just learning. It's actually on the move."The tree has moved an inch-and-a-half in the last two-and-a-half years. The city is recommending removal of the tree based on safety," said City Forester Brian Widener. 1192

SAN DIEGO (KGTV) — The back-to-back announcements of promising clinical trial results from Pfizer and Moderna may usher in a new era for vaccine technology.Both companies have candidates that rely on a new kind of vaccine strategy: RNA. Preliminary data show both candidates are more than 90 percent effective.On the surface, the vaccine candidates look like any other you’ve taken. They work by training your body to build up defensive weapons against a virus, like antibodies and T-cells.But instead of training your body by introducing a killed virus or a fragment of a virus, the vaccines from Moderna and Pfizer introduce a set of instructions called messenger RNA enclosed in a little blob of fat.“The key concept of RNA is that they’re messages, and they’re meant as short-term messages,” said Dr. Shane Crotty of the La Jolla Institute for Immunology.Crotty said there are 5,000 to 10,000 messages within a cell at any given time.Once administered, the mRNA in the vaccine instructs some of your cells to make the coronavirus’ signature spike protein. The spike protein on the surface of the coronavirus allows it to infiltrate and hijack cells.Even though the spike protein is just one of about 25 genes the virus has, preliminary results from the clinical trials suggest it is enough material to train the immune system without making the recipient sick.Crotty likened the process of training the immune system to spotting a sedan. If the coronavirus is a car, the spike protein might be the door.“There's no way that car door could turn into a whole car, but it's enough of a piece of a car for your immune system to recognize that car if it saw it again,” he said.Scientists started by sequencing the virus’ DNA from a sick patient, then encoding that genetic sequence into an mRNA instruction molecule that can be read by the manufacturing part of cells.From there, Dr. Crotty said it’s a bit like the messenger app Snapchat.The mRNA gets injected into the body, sending temporary instructions to your cells that last for a while, then disappear. mRNA does not genetically modify cells, he stressed.“They’re around as messages for some period of time and then they go away, and the cells get back to their normal job of reading their own messages instead of reading the messages you’re injecting in the vaccine,” he said.The concept has been around since the 1990s, but there are currently no RNA vaccines on the market for any pathogen, so Dr. Crotty said it’s hard to estimate how long their protective effects will last.Some vaccines offer a lifetime of protection, like the measles vaccine. Others offer decades of protection. The flu vaccine only lasts about six months.Dr. Crotty said the length of protection depends on how fast the virus mutates and how long the immune cells survive in the body.But even if the COVID-19 vaccine turns out to need an annual update, he’s optimistic. The best feature of RNA vaccines is that they can be quickly reprogrammed.Both Moderna and Pfizer are still in their Phase 3 trials, but they expect to finish them by December. Together, they estimate they’ll have enough doses for about 35 million people by the end of this year, primarily for healthcare workers and high-risk individuals. 3250

SAN DIEGO (KGTV) - The city is running behind on a project to restore an iconic bridge that borders Hillcrest and North Park.Now, people in the area are growing frustrated at the construction on the Georgia St. bridge that's causing traffic delays and drivers to use surrounding neighborhoods as shortcuts."Traffic is very very bad because of te bridge, and I have to go around to buy stuff for my shop, and it's taking me longer to get where I want to go," said Milan Misic, who lives in the area and owns the Balboa Perk coffee and antique shop. The city is restoring the 103-year-old bridge so it can withstand an earthquake. The city broke ground on the million project in July 2016, saying it would take a year. But now it won't be finished until next spring.A city spokesman says the delays are because of weather, and unanticipated cobbles and deposits crews discovered in the bridge walls, making drilling more difficult.He added that there is no threat to public safety and it will not raise the cost.You can track the project on the city's website.   1092

SAN DIEGO (KGTV) - The coronavirus pandemic is preventing many seniors in skilled nursing facilities from seeing their families. UC San Diego students are working to help combat their loneliness with their Sunshine 4 Seniors project. Students would spend their weekends visiting seniors as part of a volunteer project before classes were canceled at UC San Diego. The pandemic halted their visits. "We came up with this project, which was creating cards for seniors at St. Paul Senior Services," says student Olivia Michael. The goal of the project is for students to "step in and fill the loneliness and isolation that the senior citizen communities are feeling, especially during this pandemic," says Morgan Montoya. The students say loneliness in seniors can have damaging effects on the brain. "Olivia and I are near-cognitive science majors," says Montoya. "Our majors really helped us to understand the problems that loneliness poses. With senior citizens having an abundance of isolation and loneliness, it can actually deregulate the brain and cause a progression of Alzheimer's or depression."The Sunshine 4 Seniors project launched nearly a month ago. So far, more than 200 cards have been sent to seniors in skilled nursing facilities. The students say there are thousands of seniors who are not allowed to see their loved ones during this time. They hope to spread some sunshine to as many seniors as they can. "The goal is just to get as many people writing cards as possible," says Michael. "Any means that you have to do it, I just encourage you to get started." 1586

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