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SAN DIEGO (KGTV) — From business closures to limits on gatherings, there’s mounting evidence that government restrictions do slow the spread of COVID-19. But which policies are the most effective?A study published this month in the journal Science aims to answer that question by examining data from 41 countries outside the U.S.The researchers examined seven kinds of COVID-19 policies in mostly European countries and compared them to case and death rates in those countries over time.The policies included limiting gatherings to 1000 people or less, to 100 people or less, and to 10 people or less; a targeted closure on high-risk businesses; a broad closure of most non-essential businesses; school and university closures; and stay-at-home orders.The authors found limiting gatherings to 10 people or less was the most effective nonpharmaceutical intervention of the seven examined, reducing the transmission rate by 42 percent.Closing schools and universities was next, cutting transmission by 38 percent. The researchers said they were not able to examine the relative importance of closing universities over grade schools because such closures were typically implemented at the same time.Next, the researchers examined the impact of two kinds of business closures. They found broad closures of most non-essential businesses were “only somewhat more effective than targeted closures” of high-risk businesses like restaurants, bars and nightclubs. Broad business closures reduced transmission by 27 percent compared to an 18 percent reduction for targeted closures.“Therefore, targeted business closures can be a promising policy option in some circumstances,” the authors wrote.The study estimates those three policies together -- closing high-risk businesses, closing schools and universities, and limiting gatherings to no more than 10 people -- are enough lower to slow the spread of the virus.In epidemiological terms, interventions are considered successful when they lower the so-called number below 1. The reproduction number, or R number, is the average number of people who become infected from one infectious person. Without interventions, the study found the R number for COVID-19 between January and May was 3.3.The study did not examine the impact of wearing masks, but other studies have found that masks can also significantly reduce the spread of COVID-19.So what about stay-at-home orders? Mandatory stay-at-home orders where people are only allowed outside for essential tasks or during certain times of the day tend to be a last resort, when there are other restrictions already in place.The researchers found mandatory stay-at-home orders cut transmission another 13 percent on top of other policies. “Issuing a stay-at-home order had a small effect when a country had already closed educational institutions, closed nonessential businesses, and banned gatherings,” the authors wrote. 2919

SAN DIEGO (KGTV) - Fernanda Whitworth watched her husband Ralph battle cancer for years."He couldn't swallow, he couldn't talk or basically eat. So he lost 45 pounds, it's literally barbaric."Ralph Whitworth was diagnosed with HPV-related tongue cancer in 2013. It eventually claimed his life in 2016.Before Ralph died, the Whitworths began a quest to find a cure. It's a mission Fernanda has carried on."I feel like we are so close; we're on the tipping point of finding a cure," she explained. The nonprofit they founded in San Diego, The Immunotherapy Foundation, is dedicated to funding the most promising research on HPV-driven cancers."This is a huge problem. Not only does HPV account for six different cancer types, almost 100 percent of cervical cancers and in men, now those instances are rising for head and neck cancer, " said Dr. Ezra Cohen, who is the Associate Director for Translational Science at UC San Diego Moores Cancer Center. The Centers for Disease Control estimate that about 14 million people get a new HPV infection every year in the U.S. Nearly all men and women who have ever had sex get at least one type of genital HPV at some time in their lives. The Immunotherapy Foundation has focused its efforts on three categories:  1321

SAN DIEGO (KGTV) -- Friday, Gov. Gavin Newsom announced that counties can reopen schools for in-person education when the county has been off the state's watch list for 14 consecutive days.Newsom said schools that don't meet that requirement would have to start the fall school year with distance learning.Though some of California's schools will make that grade for in-person classes this fall, Newsom outlined when schools may be required to go back to distance learning:Schools should consult public health officer first if a classroom needs to go home because of a positive caseA classroom goes to distance learning if there is a confirmed caseA school goes to distance learning if multiple classrooms have cases or more than 5% of a school is positiveA district goes to distance learning if 25% of a district's schools are closed within two weeks"Our students, teachers, staff, and certainly parents, we all prefer in-classroom instruction for all the obvious reasons, social and emotional foundationally. But only, only if it can be done safely," Newsom said. "And safety will ultimately make the determination of how we go about educating our kids as we go into the fall and we work our way through this pandemic."Newsom's announcement comes as the federal government pushes for states to fully reopen schools in the fall -- even as COVID-19 cases surge in most states. 1385

SAN DIEGO (KGTV) - Glide away those holiday days at one of San Diego’s outdoor ice skating rinks now open for the season.While the weather may stay warm, the ice will be chilly, so be sure you're bundled up!SKATING BY THE SEAIt’s a unique experience: ice skating with a view of the ocean. The Hotel del Coronado offers its skating rink adjacent to the beach on the historic Windsor Lawn through January 1. per person, in advance online. Military and group discounts available. 1500 Orange Ave., Coronado. More infoRADY CHILDREN’S ICE RINKThis Liberty Station skating area offers music and fun with a view of palm trees. The rink is open through January 6 across from The Lot movie theater. adults, children, military. 2875 Dewey Road, Point Loma. More infoHOLIDAY BY THE BAYNot only is there a skating rink, you can slip down the 100-foot long Reindeer Run Ice Slide and see the “Shine” outdoor light show every hour. The Hilton San Diego Bayfront also has Iceberg Bumpers, foods, and cookie decorating. -38 Adults 12 and up, -33 children ages 3-11. Military discounts are available. 1 Park Blvd., Downtown. More infoVIEJAS OUTLET MALL ICE RINKBilled as Southern California’s largest outdoor ice rink, this winter installation is a treat for East County families. You can even buy a season pass. adults and teens, ages 12 and under. 5003 Willows Road, Alpine. More info 1426

SAN DIEGO (KGTV) - Holiday fun from around the world is coming to San Diego this season, as Global Winter Wonderland pops up at SDCCU Stadium.The multicultural theme park set up at the Mission Valley stadium features a circus of lights, a carnival, holiday-themed displays of locations around the world, an international food court, holiday shopping, and Santa (along with his trusty penguin, Penny.)RELATED: Southern California theme parks celebrate the holidays with festive eventsThe festival of holiday lights and music runs at the stadium on select dates from Nov. 11, 2017, to Jan. 7, 2018: 614