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SAN FRANCISCO (AP) — Two visitors died in a fall from a popular overlook at Yosemite National Park, an official said.Park rangers were trying to recover the bodies of a man and a woman Thursday, spokesman Scott Gediman said. He didn't say when the couple fell from Taft Point, which is at an elevation of 7,500 feet (2,285 meters).Yosemite officials said in a statement that they are investigating the deaths and no other information was available: 461

SAN FRANCISCO (AP) — The amount of snow blanketing the Sierra Nevada is even larger than the 2017 snowpack that pulled the state out of a five-year drought, California water officials said.As of Thursday, the snowpack measured 202% of average after a barrage of storms throughout winter and spring, according to the Department of Water Resources.The wet weather has slowed but not stopped, with thunderstorms prompting flash flood warnings Sunday in the central and southern parts of the state.At this time last year, the snowpack measured 6% of average — making this year 33 times bigger than 2018, the San Francisco Chronicle reported.In 2017, the snowpack measured 190% of average.The snowpack supplies about 30 percent of state water needs.In the Tahoe Basin, Squaw Valley ski resort has seen so much snow it plans to keep its slopes open until least July 5. In May alone, Squaw recorded 37 inches (94 centimeters).State officials consider the most important snowpack measurement to be the one taken around April 1 because that's typically when storm activity subsides."And then after that the sun's highest position in the sky contributes to rapid melting. This year, that didn't happen and we had late season snow," National Weather Service forecaster Idamis Del Valle told the newspaper.This year's April 1 reading put the snowpack at 176% of average, making it the fifth-largest on that date, with records going back to 1950, the Chronicle said.___Information from: San Francisco Chronicle, http://www.sfgate.com 1528

SAN YSIDRO, Calif. (KGTV) - Customs and Border Protection officials tweeted thermal camera video Friday of men climbing the U.S.-Mexico border fence and damaging the concertina wire.The video was recorded by U.S. Border Patrol cameras placed near Border Field State Park in Imperial Beach, opposite from where migrants have been gathering as more members of the Central American caravan arrive in Tijuana.There was no word on whether the incident captured on video led to an arrest.“All seeking to enter the U.S. are urged to do so at one of more than 320 official U.S. Ports of Entry,” Customs and Border Protection officials wrote in the tweet.  665

Scientists and medical professionals across the country are working to learn about the coronavirus’s effect on children. There's still a lot they don't know about how the virus affects children.With children often not showing as many symptoms as adults, experts say kids can help us learn more about the novel coronavirus. Dr. Beth Thielen, a pediatric infectious disease physician and professor at the University of Minnesota, says people could be looking to children, especially as they go back to school, to find out more about the coronavirus."I mean, I hope so. I think this provides a very rich opportunity to understand a lot of basic things about the immune system and why diseases manifest differently in adults and children," says Dr. Thielen.Dr. Thielen says from possible protective measures of the MMR vaccine in children to t-cells, there's so much people can learn from how children's bodies combat viruses."It is thought that t-cells play a substantial role in helping to clear viral infections from the lungs. There are people looking at t-cell responses but they've lagged a bit behind with the data coming out on t-cell responses hasn’t been as prominent as the antibody studies," says Dr. Thielen. She adds, the reason people are looking at t-cells and children is because t-cells decline with age."I think they are critical. We all have them, they work to protect us from infection and potentially they are more efficacious in younger people potentially. Although, I think that really hasn’t been clearly worked out for SARS COV2," says Dr. Thielen.Dr. Jay Varkey, an epidemiologist at Emory Hospital in Atlanta, Georgia, agrees. Dr. Varkey says scientists are also looking into why children older than 10 years old, are more likely to have more serious symptoms with COVID-19."I think the reasons for that are complex. I think part of that might be related to some sort of existing t-cell immunity, and to what that is whether that’s to memory cells that are acting against a previous seasonal coronavirus that would just cause cold like symptoms, or whether its related to something more complex -- I don't think we’re there in terms of understanding," says Dr. Varkey.Dr. Varkey says, while children can help us understand COVID-19 better, it's also up to the adults to make sure they're growing up in a healthy, safe environment."We will learn much from kids but one of the messages we’ve been emphasizing in the hospital is that if we, again- and I answer this both not just as an infectious disease physician but also as a parent to two school age kids--we as adults have a responsibility to try and make our community safe to actually allow in-person learning," says Dr. Varkey."I think that we often think of children as getting a lot of these infections and the fact of the matter is most adults are getting exposed, as well, but our immune systems are sort of experienced at seeing them and we don't get sick," says Dr. Thielen.Dr. Thielen is a member of the Pediatric Infectious Disease Society and says she and other doctors in their scientific groups are advocating for more pediatric research to truly understand how certain diseases, including COVID-19, behave in children. 3217

SAN YSIDRO, Calif. (KGTV) -- Authorities are warning Americans traveling to Tijuana about people posing as police officers reportedly getting aggressive with drivers waiting to cross the San Ysidro Port of Entry. Photos from Tijuana Police show officers near the port putting a man in handcuffs. Authorities in Mexico say he’s one of 35 people arrested Sunday for being aggressive to drivers waiting to get back into the United States. The concern was raised this week as travelers are expected to head south for the holiday weekend. Marco Sotomayor, the Secretary of Public Safety in Tijuana told the San Diego Union Tribune that the city is seeing cases that are more violent and more consistent. Sotomayor goes on to say that criminals sometimes mask themselves as police officers wearing fake badges on hats and jackets, demanding money from drivers stuck in lines. "I think you very much stick out if you've never been to Mexico, and you don't know where you're going and you don't know what roads to take, I think that does make you a very easy target,” said Amanda Matti with Daytripper Tours. She says the company has been safely traveling into Mexico for 30 years. Because they travel in large groups via buses and have contacts across the border, Matti says their tour service never runs into these type of issues. "Our driver is usually local, experienced in Mexico, our tour managers are experienced, so I think they know not to target us."Matti says if you plan on going this weekend and don’t have experience, don’t go alone. "We definitely recommend traveling in a group." 1595