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Does a picture really show a stunning move by the Blue Angels forming what looks like a giant hand?No.While the Blue Angels are amazing, the picture going around showing them forming a huge hand is a piece of digital art. 229

EL CAJON, Calif. (KGTV) - Months of preparation will finally pay off Saturday for students in the Cajon Valley Union School District.The district is putting on what's now become an annual event, TEDxKids@ElCajon, a local version of popular TED Talks.After working with coaches all year, a select number of students were chosen to give their talks Saturday, speaking about issues they're passionate about.The event kicks of at 9 a.m. at Greenfield Middle School in El Cajon.Entrance is free for CVUSD students and general admission is . 545

During the last few months, many health experts have been talking about reaching “herd immunity” with the distribution of the COVID-19 vaccine. Over the Christmas weekend, Dr. Anthony Fauci said he estimates the country needs to reach 80-85% with the vaccine to attain herd immunity.Here’s what that means.Herd immunity is a concept used in discussions about vaccination, and signifies the threshold needed for a population as a whole to be protected from a virus.The World Health Organization clarifies that herd immunity, or population immunity, “is achieved by protecting people from a virus, not by exposing them to it.”The Mayo Clinic also describes the situation following the 1918 Spanish Flu outbreak. They say people who survived the pandemic were later immune to infection of the H1N1 flu, also referred to as swine flu.Health experts warn that relying on community infection to create herd immunity could be dangerous; there are questions about how long the antibodies created by infection protect against reinfection, and a high level of community infection could lead to overwhelmed medical facilities and a high number of deaths.When the threshold of herd immunity is reached, it means the vast majority of a population is vaccinated and has antibodies, thereby lowering the overall amount of community spread of the virus. It also means portions of the population who cannot get vaccinated are kept safer by the limited spread.What that threshold is varies depending on the virus and the efficacy of the vaccine.According to the WHO, herd immunity against the measles is reached with 95% vaccination, while herd immunity against polio is 80%.Dr. Fauci believes herd immunity for COVID-19 can be reached with around 85% of the population having antibodies. 1778

Each winter, many people wonder whether its worth getting a flu shot while health officials repeatedly warn against not getting one.Now a new study sheds light on the benefit of doing so. Even when the flu shot is just 20% effective it can still reduce US doctor visits due to illness by an estimated 20 million in a single year, the new report published in the scientific journal PNAS (Proceedings of the National Academy of Sciences of the United States) finds.In addition, vaccination also can prevent thousands of hospitalizations and deaths, the study authors estimated based on the average vaccination coverage rate in the United States."Getting vaccinated against influenza is beneficial to the individual and to the community even when the vaccine is of relatively low efficacy," said Burton H. Singer, co-author of the study and an adjunct professor for the Emerging Pathogens Institute at University of Florida in Gainesville.Caused by viruses, flu is a contagious respiratory illness with mild to severe symptoms that can sometimes lead to death. The flu virus evolves rapidly and new viruses circulate in different parts of the world, so each year scientists must reformulate the vaccine. Add to that an imperfect manufacturing process and even a 'good match' formulation may not be as effective as scientists would like.In fact, the Centers for Disease Control and Prevention estimated just 36% effectiveness for the 2017-18 seasonal vaccine as of February 3. (The season ends in May.)For the new study, Singer and his colleagues created a mathematical model of flu transmission and vaccination to evaluate how much illness is prevented by even a very low effectiveness flu vaccine. The research team found that at the average rate of US coverage even a poor vaccine would prevent a significant amount of illnesses, hospitalizations and deaths.For example, at just 43% coverage (the average rate of Americans who received a flu shot for the years 2012 through 2017), a vaccine with just 20% effectiveness could avert more than 20 million infections or illnesses as compared to not getting the vaccine. In addition, 129,000 hospitalizations and 61,000 deaths could be prevented.Based on the model, if more people got a flu shot, say half of the US population, the same 20% effective flu shot would prevent an additional 3.63 million infections, 21,987 hospitalizations and 8,479 deaths."When a vaccine is fully effective on 50% or more of the people who are vaccinated, you need to primarily focus on vaccinating young children," said Singer. The reason? Children are still building immunity and they pass germs around at school."As efficacy of the vaccine decreases, it becomes increasingly important for the elderly to be vaccinated in addition to young children," said Singer, since the elderly are more likely to develop complications from the flu, such as pneumonia, which can be deadly.The CDC reported a total of 160 flu-related deaths in children and 30,064 flu-related hospitalizations overall?between October 1, 2017 and April 21, 2018. The highest rate of hospitalization occurred among adults 65 years old and older.Richard Webby, a flu scientist who is part of the World Health Organization's advisory board and a member of St. Jude Children's Research Hospital's Department of Infectious Diseases, said "effectiveness estimates go up and down based on a number of factors including match of vaccine and circulating strain and probably other factors we don't fully understand.""The take home message from the past few seasons is that there is much room for improvement," said Webby, who was not involved in the research.Still, more people, particularly the elderly, need to get vaccinated even when the vaccine effectiveness is lower than hoped, Webby said: "This study suggests that even with a less than optimal vaccine there is still much public health benefit that can be achieved if these are used properly and widely." 3992

Don’t expect BLM and social justice messages on basketball courts or jerseys in the NBA next season, according to league Commissioner Adam Silver.The 2020 NBA season has gotten a lot of attention for both the league’s response to the coronavirus pandemic with a “bubble” and their public embrace of social justice issues and the Black Lives Matter movement this summer.During a NBA Countdown interview on ESPN ahead of a playoff game earlier this week, Silver was asked about the league championing social justice and civil rights, but as Silver noted in a press conference recently, that has not been universally popular.“How committed are you to being that going forward?” host Rachel Nichols asked.Silver quickly responded, “We’re completely committed to standing for social justice and racial equality. It’s part of the DNA of this league.”He then said changes could come in how that commitment is manifested. The commissioner acknowledged the league has to sit down with the players and discuss for next season.“I would say in terms of the messages you see on the court on our jerseys, this was an extraordinary moment in time, when we began the discussions with the players and what we all lived through this summer,” Silver said.In July, when the league restarted their 2020 season from a so-called bubble in Orlando, “Black Lives Matter” was painted on the court floor. Players, coaches and staff stayed in Orlando this summer and drastically limited contact with the outside world and other people, in order to stop the spread of the coronavirus.Also this season, players were allowed to put slogans or phrases on their jerseys to highlight causes they support.The league was also the first large sports group to protest playing games in the wake of the shooting of Jacob Blake in Kenosha, Wisconsin. Instead, many teams and other leagues spent time focused on social justice issues.Blake is a black man who is now recovering at a rehabilitation center after being shot several times in the back by a police officer.So, what can fans expect in the 2021 season?“My sense is there will be some sort of return to normalcy. That those messages will largely be left to be delivered off the floor. And I understand those people who are saying ‘I’m on your side, but I want to watch a basketball game,’” Silver said.As for when the next season will start, Silver says everyone with the league needs a rest, mentally and physically, and they don’t have an exact start date at this time. They said it could be as early as Christmastime, but will likely be in 2021. 2572