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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) -- From termite infestations to leaky pipes and AC units, some students at San Diego State University say their on-campus housing complex is “abysmal” even though it costs hundreds of dollars more per month than newer apartments just steps away.Shortly after moving into Aztec Corner, sophomores Hanna Bengard and Kalie Slivkoff said they had issues with electricity, a leaky A/C unit and spiders. A few weeks ago, they found termites in a roommate’s bed.They each pay ,285 a month for a four-person apartment in the on-campus housing complex, even though there’s another complex less than 20 yards away that charges 5 a month.RELATED: Thousands of students move into campus housing ahead of Fall 2019 semesterThe students say they have no other options because a new SDSU policy requires all non-local sophomores to live in on-campus housing.“It’s really frustrating,” said Bengard.Slivkoff added, “I get their point. Better GPAs, closer to campus. I get that kind of stuff, but raising the prices by nearly half, I just don’t agree with that.”SDSU took over the complex this semester with a master lease. Last year, rents were 4, according to the Daily Aztec.RELATED: Residents against SDSU 'mega-dorm' in their community“They’re forcing people to live in these apartments and that’s given them the ability to drastically upcharge the price,” said another resident, Connor Dreher.A Change.org petition demanding refunds had more than 560 signatures as of Friday afternoon.“The rent rate is a reflection of the property manager's market rate, plus SDSU’s residential education cost, which is embedded within the rent rate,” said SDSU spokeswoman La Monica Everett-Haynes. “Prior to the master lease agreement, rent was paid in 12 monthly payments. Today, SDSU’s rent on a license agreement are on a 10 installment payment agreement to accommodate student financial aid scheduling.”Everett-Haynes said the university does not own the property or directly respond to maintenance requests, but SDSU does track the requests to ensure they’re handled promptly.RELATED: SDSU Christian sorority sisters speak out over plans to demolish their house“The offices of Housing Administration and Residential Education has been actively working with residents to ensure that issues are being properly reported so that they may be addressed,” she said in a statement.As of noon Friday, there were only two outstanding service requests in the 602-bed complex, she said.Students acknowledged most service requests are handled promptly. But they said the problems just don’t seem to stop.“We’re all just fed up,” Dreher said. 2641

SAN DIEGO (KGTV) - For the first April 20 in California, marijuana use is legal in the state.California’s new recreational marijuana laws took effect Jan. 1, 2018, as the passage of Proposition 64 in November 2016 opened up the state to regulate cannabis. For local users, however, it's not a matter of simply heading outside and smoking freely.Several state laws are in place to make sure smokers celebrate "4/20' legally - and safely - will be in effect Friday. Here's what they need to know:RELATED:  536

SAN DIEGO (KGTV) -- Gov. Gavin Newsom on Thursday ordered a statewide "limited Stay at Home Order" for San Diego County and other counties in the state's COVID-19 purple tier.In a release on the governor’s website, the state’s curfew will take effect Saturday, Nov. 21. It will be from 10 p.m.-5 a.m.The curfew is set to expire on Dec. 21 at 5 a.m.The state said the restrictions are similar to the stay at home order issued in March.This time, however, the order only applies to counties in California's purple tier status under its COVID-19 reopening plan.Newsom said, “The virus is spreading at a pace we haven’t seen since the start of this pandemic and the next several days and weeks will be critical to stop the surge. We are sounding the alarm. It is crucial that we act to decrease transmission and slow hospitalizations before the death count surges. We’ve done it before and we must do it again."San Diego County Supervisor Greg Cox, in response to the statewide curfew, said, "Look, we know we all want to see this pandemic end. And believe me, we do too. But those who float the public health orders, those who refuse to use masks and facial coverings are just prolonging the misery."“Bottom line is, wear those damn masks out there. Socially distance. And the sooner we do that, the sooner we’re going to get through this crisis,” said San Diego County Sheriff Bill Gore.Gore says they are devoting four two-men deputy teams to work full time with county compliance officers.He says they are not going door-to-door but following up on complaints about businesses or entities violating public health orders. They will attempt voluntary compliance and education first. If that doesn't work, it could lead to citations.He says when it comes to enforcement, they want to work with local jurisdictions and police departments, but they will serve citations with or without their help."If they're not going to join with us in enforcement action, if that becomes necessary, we will issue those citations by ourselves without their assistance," Gore said.Since Monday, the county has issued 52 cease-and-desist orders for businesses not in compliance.Last week, California, Washington, and Oregon issued travel advisories that urge visitors from out-of-state or residents returning home from outside travel to self-quarantine for 14 days. 2351

SAN DIEGO (KGTV) - Heavy rain over the last few years has brought an unexpected splash of color to portions of San Diego.For the last month or so, Rainbow Eucalyptus trees have been shedding their bark, revealing a multi-colored trunk."It's outstanding," says Peter Fritsch, who walks by a handful of the trees along Sports Arena Boulevard. "I love the contrast between the gold and the red and the gray and sometimes blue."RELATED: Interactive map: Exploring San Diego's history, culture through street artHorticulture experts say the colors are more pronounced in tropical climates, but here in San Diego, you can still see a rainbow on the trees."As it ages, the stuff that doesn't look as colorful, has been oxidized somewhat, it peels off," says Bradley Brown, a Master Arborist with Tree Life Consulting. "Over time, the new bark will have those varying shades of color."According to the city, there are Rainbow Eucalyptus trees in Balboa Park, Sports Arena, the San Diego Zoo and parts of Mission Bay. There's no official count for how many exist in the city.Still, right now, they're easy to spot.RELATED: Mission Hills home transformed into whimsical topiary garden"It's amazing watching all the bark peel off and seeing the rainbow come alive in them," says Jason Sandoval, who owns a gas station that has several of the trees nearby.Eucalyptus trees have a rough reputation across San Diego. They grow fast and have a tendency to fall over in high wind and rain events.But Brown says they can be safe if they're well maintained. He'd like to see more planted throughout the city."It's something we should embrace. It's kind of San Diego's tree," he says. "You see pictures of LA and they have palm trees. Ours is the Eycalyptus. It's those Dr. Seuss forms along the freeway that's something we should embrace." 1829