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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

Doctors and researchers have noticed that the coronavirus affects children differently. Now, there are questions about how accurate COVID-19 tests are in kids.One recent study done by several laboratories and hospitals in Massachusetts looked at the BinaxNOW rapid test.The test had a high accuracy rate in adults, but when it came to symptomatic patients 18 and under, the accuracy rate was just under 78%. The rate decreased in asymptomatic children.Another paper, published in Clinical Microbiology and Infection, found the Panbio rapid test had a lower accuracy rate in children. It was only able to identify 62% of COVID-19 cases in patients under 16 years old.Doctors have differing opinions on why accuracy rates may be different in children.One doctor tells Yahoo News that children's immune systems are just better at zeroing in on diseases and making them harder to detect.A pediatric doctor we spoke with says she hasn't seen a difference in accuracy rates. If anything, symptoms may be different.“Sometimes the way that the disease processes or goes about in these children can change. It can change with obesity rates and things like that, but we have had it be successful with infants age as well as on up,” said Laura-Anne Cleveland with the Rocky Mountain Hospital for Children.There may also be some variation in the way the test is performed. The cotton swab is the same size for both adults and children, which means it could be more uncomfortable for kids.“Kids move around. If you have a little kid that you're trying to hold down, they're going to move around, and sometimes, we don't want to cause pain or cause tears, but you do have to get in that nose, do a couple turns, and be able to get a good sample,” said Cleveland.When children are tested, doctors say it may actually be a bad sign if they are comfortable during the test, because it may not produce an accurate result. If you notice your kid is comfortable while being tested of if the swab barely went into their nose, it's advised that you ask for the test to be redone. 2065

During the holidays, we often have lots of gifts to send to family and friends and instead of paying a hefty amount to ship them overnight, there’s a new and less costly way to send presents. It’s called Roadie and it’s an app.Once you’ve downloaded the app, you simply start a new gig. Type in where you need your items shipped. It doesn’t matter if it’s the next town over or two states away. You’ll then be set up with a driver headed in that direction. The driver will then pick up and drop off your packages in a matter of hours or few days.The app lets you track your package too. You can ask the delivery driver to take a picture of it along the way.There is no need to worry about package protection. Each gig has a 0 warranty and you even have the option of purchasing an additional ,000 in protection.If you’re wanting to make extra cash by simply delivering the package to the city you’re already headed to, drivers get paid on mileage and urgency.If you’re nervous to try Roadie, just know the new concept of shipping and delivering is backed by UPS. 1081

DUBLIN, Calif. – Actress Lori Loughlin has surrendered herself to authorities to begin her two-month prison sentence for her involvement in the college admissions scam.NBC News and The Associated Press report that Loughlin reported to the Federal Correctional Institution in Dublin, California, on Friday to be processed.The former “Full House” star showed up early. She wasn’t ordered to report to the San Francisco- area prison until Nov. 19, NBC News reports.Earlier this year, Loughlin and her husband, fashion designer Mossimo Giannulli, pleaded guilty for paying 0,000 in bribes to cheat the college admissions process.It came to light in 2019 that the couple paid the money to get their two daughters into the University of Southern California as crew recruits, even though they aren’t rowers.Loughlin and Giannulli were among several people arrested in the case that was called “Operation Varsity Blues.”Loughlin was handed her two-month prison sentence in August, when a judge accepted her plea deal. The same day, her husband was sentenced to five months behind bars for his role. 1101

EL CAJON, Calif. (KGTV) - The pilot of a small plane made an emergency landing at a field and playground next to W. D. Hall Elementary School in El Cajon.The emergency landing happened around 4 p.m. Friday.The pilot says he took from Gillespie Field for a practice flight and was headed back to Gillespie for a landing when he ran out of fuel. He says his engine stopped, and he had to look for a place to land. He was able to glide onto the field safely.The plane hit a fence on the way down causing damage to a wing.The pilot says he has been flying for decades.No injuries were reported. 598