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As students return to school and employees head back to the office all with new safety protocols likely including wearing a mask, a new study from Duke University explores which masks are more effective.Spoiler alert: A fitted N95 mask, usually reserved for those in the medical community, performed the best in their test. However, since many Americans do not have access to those and have been using a mix of store-bought or homemade cotton and fabric facial coverings, Duke tested 13 other kinds of masks.The study, which was published Friday, was prompted when a professor at Duke’s School of Medicine was asked to assist a local group buying masks in bulk for the community. According to CNN, the professor wanted to make sure the masks they bought were effective.Researchers gathered 14 kinds of masks, including the professionally-fitted N95 mask, a bandana, homemade cotton varieties, and a surgical mask. They then used a dark room, laser beam and cell phone camera to record how many droplets (which reflect the laser beam light) each mask allows through.For each mask test and the non-mask wearing control test, the speaker was recorded saying “Stay healthy, people” five times. Each mask was tested ten times. 1229

As the COVID-19 pandemic progresses, researchers say it is important to track how the coronavirus mutates because it could affect the efficacy of a vaccine.Like all living cells, viruses evolve their chemical make-up changes. In viruses like the flu, that happens frequently, which is why every year there is a new vaccine to treat whatever strain is expected to circulate. With COVID-19, however, those mutations happen much slower, according to research out of Arizona State University.“One of the things we’re still keeping an eye on is the evolution of this virus because that virus is still around in the community,” said Dr. Efrem Lim, an assistant professor at ASU. “Everyone is coming in blind to this. This is a novel virus. This isn’t something we have seen before.”In March, Arizona State University played host to our country’s fourth COVID-19 case. As soon as it was detected, Dr. Lim started studying how the virus mutates and sent his findings to the World Health Organization. It's something that still continues to this day.“This virus, overall, mutates pretty slowly, which is a good thing,” said Dr. Lim. “However, we can have instances where the virus can have very large, dramatic, mutations, such as deletions in the genome.”While rare, Dr. Lim says those mutations can be significant as it changes how the virus acts inside the body.Currently, scientists are focusing much of their efforts on identifying ways to eliminate the function of the spike protein in COVID-19, as it is the way the virus binds to our cells and infects them (spike proteins are the stalks that protrude from the center of the virus that make it so recognizable).“It is very good news that the virus is not changing rapidly,” said ASU virologist Dr. Brenda Hogue. “We will have to see over time, as the virus continues to circulate, as we put a vaccine into play, whether or not there will be any issues.”Dr. Lim says right now there does not appear to be any issues because the virus mutates slowly, but he adds it could adapt to a vaccine once one begins to circulate.He says more testing needs to be done to determine that, however. 2140

AUSTIN, Texas (AP) — Democratic presidential candidate Beto O'Rourke says President Donald Trump should resign as Congress begins an impeachment investigation.O'Rourke said Saturday there shouldn't be a fear of an impeachment probe intensifying partisan divisions. The former Texas congressman said at the Texas Tribune Festival in Austin that he believes impeaching Trump would ultimately unify the country.But O'Rourke says "the best thing" Trump can do at this point is to step down. Trump defiantly denies any wrongdoing.The 2020 Democratic presidential field is unanimous in its support of Congress for launching an impeachment investigation. The White House's handling of Trump's calls with foreign leaders is at the heart of the House impeachment inquiry.O'Rourke has been lagging in the polls but says he's in the race "until the very end." 856

BAKERFIELD, Calif. - An Oildale, Calif. 11-year-old tried to kill himself after his tablet was taken away, according to court documents obtained by Scripps affiliate KERO-TV.The documents show Kern County Sheriff's deputies were called to the Woodrow Avenue Sunday evening for reports of an attempted suicide.The boy's mother told deputies she found her son hanging in his bedroom closet by a sweater.The mother said she pulled him from the makeshift noose and called 911. Deputies performed CPR when they got there and the boy was then taken to the hospital for further treatment. His condition at this time is not known.The mother told deputies that the boy was upset about his tablet being taken away from him.If you or someone you know needs help, call the Kern County Mental Health Hotlines: (24/7)Suicide Prevention Hotline:  1-800-273-8255Crisis Hotline:  1-800-991-5272? 901

ATLANTA (AP) — A federal judge is permanently blocking Georgia’s 2019 “heartbeat" abortion law, finding that it violates the U.S. Constitution.U.S. District Judge Steve Jones ruled against the state Monday in a lawsuit filed by abortion providers and an advocacy group.Jones had temporarily blocked the law in October, and it never went into effect.The new ruling permanently enjoins the state from ever enforcing House Bill 481.The measure sought to ban abortions once a “detectable human heartbeat” was present, with some limited exceptions.Cardiac activity can be detected by ultrasound as early as six weeks into a pregnancy.Jones found the law violated the 14th Amendment. 685