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SAN DIEGO (KGTV) — While Saturday will start off cold, temperatures will improve through next week throughout San Diego County after a week of chilly temps and weather.A Frost Advisory will be in effect through 9 a.m. Saturday for the Inland Empire and San Diego County's valleys, as temperatures dip to the 30s an 40s, according to the National Weather Service. At higher elevations, temps could hit the teens.While temperatures are expected to warm up, conditions through the weekend will keep road conditions through some mountain roads dangerous. Snow and ice that had built up through the week will still be present, with a slight chance of flurries for the mountains Saturday.WEATHER: Up-to-date conditions throughout San Diego CountyWith the cold weather Saturday, black ice in some areas could be present. Chain restrictions or road closures may still be required.But warmer weather is on the horizon. Temperatures are expected the return to normal for this time of the year by the middle of next week, according to NWS. 1036

SAN DIEGO (KGTV) — With the increase of online shopping, experts predict that retailers will make a record-breaking number of return transactions this year.December 26 is the official start of the "returns and exchanges" season.Grab a cart. It's back to the store. David Warren's sofa just didn't look right. So he was back at the Target store in Kearny Mesa Saturday afternoon."I'm just returning these pillows and shirts," Warren said. "I'm going to swap them out for something smaller."Fernando Delacruz and his wife bought themselves bicycles to kick start a healthy New Year's resolution."I figured I'm going to need a bike so I can exercise," Delacruz said. "And then my wife said, 'Oh that's a cool Christmas gift for me too!'"The couple bought their bikes at target.com. Delacruz's fit perfectly, but his wife's did not."When she tried it on, it was kind of a little big for her," Delacruz said. "So we have to return it."The pandemic has caused a surge in online shoppers, a saving grace for retailers. But not being able to touch and feel the products means there have been a record-setting number of returns. Experts say returns will cost companies more than billion this holiday season. But retailers have managed to make the return process much easier, many places not even requiring receipts."We do have a Target card, and they can trace it from there, so we didn't have to worry about that," Delacruz said.Delacruz says now they are at the store to return what didn't fit and replace it with one that does."We're probably going to look for another bike today," Delacruz said.According to the 2020 Deloitte Holiday Retail Survey, 45% of shoppers prefer the "buy online, return in-store or curbside" service. 1732

SAN DIEGO (KGTV) — While the bulk of rainfall has moved out of San Diego County for the week, high winds and surf while persist through the weekend.A large west-northwest swell will bring a high surf advisory to San Diego County through Saturday until 8 p.m., with surf reaching 6 to 10 feet along the county's southern coastline. Surf will subside gradually through the end of the weekend.During that time, however, an increased risk of rip currents will create a hazard along the area's beaches.WEATHER: 10News' weekend forecastHeading into Saturday night, another storm system will bring mostly light to moderate rain Saturday night and the possibility of snow in local mountains.High winds from the west are forecasted for portions of San Diego's mountains and deserts, with a wind advisory will be in effect from 4 p.m. Saturday to 7 a.m. Sunday. Wind gusts could reach 55 mph and isolated gusts could hit 65 mph.Those winds will make driving difficult in the area, especially for high profile vehicles. Motorists are reminded to use extra caution and watch for fallen tree limbs during that time. 1110

SAN DIEGO (KGTV) -- We’ve known for a while that COVID-19 hits people over 65 especially hard, but a study published Wednesday from researchers in San Diego offers new insight into why that happens.The numbers are staggering: if you’re 65 or older, your risk of winding up in the hospital from COVID-19 is five to 11 times higher than someone under 30. Your risk of death is at least 90 times higher, according to data from the Centers for Disease Control and Prevention.Researchers at the La Jolla Institute for Immunology say the reason why older people fare so much worse appears to be from a lack of T-cells, a type of white blood cell that can decline with age.“Some viruses get controlled by one part of the immune system. Some viruses get controlled by another. In this case it seems that T-cells really do a lot of the work,” said Dr. Shane Crotty, one of the authors of the study published Wednesday in the journal Cell.Dr. Crotty and his colleagues looked at 50 people infected with the virus, and they measured the three elements of the adaptive immune system in detail: antibodies, helper T-cells and killer T-cells.Then they compared the measurements to how people fared against the virus. Some patients in the study group had severe cases, others had mild infections.The researchers found that people with all three branches of the adaptive immune system tended to fully recover. People with severe cases of the virus often lacked one or more of the immune branches, and it was particularly evident in older people.“Our data indicated that of the older individuals, it was particularly the ones that had fewer T-cells to start that look like they really struggled to control this virus,” Dr. Crotty said.As we age, we have fewer T-cells to send after invading pathogens. “That collection of T-cells gets smaller. So it’s harder to recognize a new virus,” Crotty said.Among the 748 deaths in San Diego County reported as of Wednesday, 87% were people aged 60 and older.The findings from LJI may have implications in the search for a vaccine against COVID-19. The data suggests that vaccine-makers may want to target a drug that elicits all three branches of the immune response, Dr. Crotty said. Some vaccine approaches, such as inactivated virus vaccines, only elicit two of three branches, not killer T-cells. However, Crotty said it was too soon to rule any candidates. Two strong branches produced by a vaccine could potentially cover for the lack of a third, he said.Crotty said the findings could help vaccine-makers interpret results from the clinical trials and find the right dosing.“Is a given vaccine a good vaccine, and you just need a booster immunization?” he said. “Does it work well in one population but it doesn’t help in the elderly because it doesn’t generate a T-cell response, for example? Those are the scenarios when this type of knowledge will come into play.” 2906

SAN DIEGO (KGTV) - Want to live in a prime Park West location with a Balboa Park view? A condo for sale for ,450,000 may fit the bill.The unit on 6th Avenue can be two separate residences or combined into a larger home.With a spacious balcony, you can enjoy treetop views of Balboa Park, or stay cozy in the cooler months at one of the home’s two fireplaces.HOME TOUR: Treetop view of Balboa Park available at condoThe home is listed by Francine Finn, Raye Scott and Sarah Scott of Pacific Sotheby's?Realty.2630 6th Ave.,450,000Bedrooms: 4Baths: 4Square Feet: 5,307 577

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