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A massive cloud of Sahara Desert dust is blanketing the Caribbean as it heads toward the U.S. with a size and concentration that experts say hasn’t been seen in half a century. The thick dust cloud, known as the Saharan Air Layer, is making a 5,000 mile trip from the northern Africa desert to North and Central America along the east to west Trade Winds along the equator. The Saharan Air Layer is between 5,000 and 20,000 feet above the Earth's surface, and dust plumes travel over the Atlantic Ocean several times a year between spring and fall. This year's dust plume is thicker than normal, the concentration of particles in Puerto Rico are the highest in decades. Air quality across most of the Caribbean region fell to record “hazardous” levels Monday and experts who nicknamed the event the “Godzilla dust cloud” warned people to stay indoors and use air filters if they have one. 896

A recent study published Tuesday in the journal JAMA Internal Medicine found that most Americans are still susceptible to COVID-19.According to the study, researchers studied the blood samples of 177,919 Americans across the nation, D.C., and Puerto Rico between July 27 and Sept. 24. They found that fewer than 10% of the people had detectable COVID antibodies."In this U.S. nationwide seroprevalence cross-sectional study, we found that as of September 2020, most persons in the US did not have detectable SARS-CoV-2 antibodies, and seroprevalence estimates varied widely by jurisdiction," the authors concluded. "Continued biweekly testing of sera collected by commercial laboratories will allow for assessment of the changing epidemiology of SARS-CoV-2 in the U.S. in the coming months. Our results reinforce the need for continued public health preventive measures, including the use of face masks and social distancing, to limit the spread of SARS-CoV-2 in the U.S."Researchers noted that Seroprevalence varied between metropolitan/nonmetropolitan areas and across regions, with estimates as high as 23% in the northeast, 13% in the south, and forecasts in the midwest and west were less than 10%.The researchers also found that Seroprevalence was often lowest in older age groups. 1295

A relaxing swim in the ocean after a day of training suddenly changed when a shark got close to a coast guard group, prompting crewmembers to fire shots in the water to scare the animal away.Members of the Coast Guard Cutter Kimball had completed operations for the day “a zillion miles from land” and “had not been off the ship for weeks,” they said in a Facebook post describing the encounter. USCGC Kimball is based in Honolulu.The group decided to go for a swim complete with an inflatable unicorn, and utilized a “fully vetted and tested plan we’ve used before” which included safety briefs, a small boat stationed 50 yards out and “an armed shark watch.”Then, over the radio, a call comes over “shark!” 716

A man who held up a "Trump 2020" sign while riding Splash Mountain at Disney World says he has been banned from the park for life.Dion Cini of New York City donned a "Make America Great Again" visor and strategically held up a "Trump 2020" banner so it would show up in the on-ride photos that are available for purchase near the exit of Splash Mountain.NBC News reports that Cini was later told that he has been permanently prevented from visiting its parks.Disney told NBC that it wasn't the content of Cini's sign that resulted in the ban but the fact that he held up a sign "to incite a crowd."Disney World's park rules state that "unauthorized events, demonstrations or speeches, or the usage of any flag, banner or sign for commercial purposes, or to incite a crowd" as among its prohibited activities.Cini posted a picture of his ride photo, along with what appears to be a ticket documenting his ban from the parks on FacebookAlex Hider is a writer for the E.W. Scripps National Desk. Follow him on Twitter @alexhider.  1065

A San Diego bail bondsman is disputing a controversial Facebook live in which the narrator says his agents were turning in a suspected undocumented immigrant.The video, shot Monday by Ryan McAdams, shows Watkins employees turning a Latino man into central jail. McAdams, wearing a Watkins hat, narrates the video, saying the man was at risk of skipping trial and costing Watkins ,000. He added commentary that drew criticism from immigration advocates. "He's in here hiding under sanctuary status right now," McAdams says in the nine-minute video. "Let ICE (Immigration and Customs Enforcement) deal with him."Jerald Watkins, who co-owns Watkins Bail Bonds, said he watched that video in shock. He said immigration status doesn't matter. "As long as you appear at your court dates, that's all we're asking," he said. Watkins said his workers took the man in after he changed his address and phone number, plus a warning from his co-signors that he may skip trial. "The family called and said look, this guy's acting shaky, we don't want to be on the hook for ,000," he said. Watkins said McAdams isn't his employee. He simply knew the agent, who let him ride along while he broadcast it on Facebook."Yeah, I'm not happy about that," Watkins said. "That's just some private citizen doing what he's going to do."McAdams told 10News Monday he wanted to inform the public."I'm just trying to keep people up to date," he said. But Watkins says immigration status had nothing to do with the case. In the Facebook video, McAdams said the man was suspected of driving under the influence. But Watkins said he was suspected of providing false information to police.He declined to identify the man.    1758