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A new study suggests misguided antibodies created as a response when someone is infected with the coronavirus could be the cause behind both more severe COVID-19 symptoms and those who report having symptoms for months after initially recovering.Researchers at Yale University found that COVID-19 patients they studied had high levels of antibodies that had turned on them; these wayward antibodies blocked antiviral defenses, wiped out helpful immune cells and attacked the body in several areas including the brain, blood vessels, liver and gastrointestinal tract.“Covid-19 patients make autoantibodies that actually interfere with immune responses against the virus,” Aaron Ring, an immunobiologist at Yale and senior author on the study, told The Guardian.Autoantibodies are antibodies that attack the body’s own proteins by mistake and disrupt their normal functions.“We certainly believe that these autoantibodies are harmful to patients with Covid-19,” said Ring. He added that the harmful effects of these autoantibodies could continue well after the initial infection has been overcome. He said antibodies can last for a long time, and if they are misguided in their attacks, the effects of their attacks on the body could also last a while.The study, which has yet to be peer reviewed and formally published, looked at antibodies from 194 COVID-19 patients and hospital workers with a range of symptoms and severity of symptoms.Other conditions, like lupus, multiple sclerosis and rheumatoid arthritis, are also made worse by the immune system malfunctioning and attacking the body. 1600

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.The object, nicknamed 'Oumuamua, meaning "a messenger that reaches out from the distant past" in Hawaiian, was first discovered in October 2017 by the Pan-STARRS 1 telescope in Hawaii.Since its discovery, scientists have been at odds to explain its unusual features and precise origins, with researchers first calling it a comet and then an asteroid, before finally deeming it the first of its kind: a new class of "interstellar objects."Now, a new paper by researchers at the Harvard Smithsonian Center for Astrophysics raises the possibility that the elongated dark-red object, which is 10 times as long as it is wide and traveling at speeds of 196,000 mph, might have an "artificial origin.""'Oumuamua may be a fully operational probe sent intentionally to Earth vicinity by an alien civilization," they wrote in the paper, which has been submitted to the Astrophysical Journal Letters.The theory is based on the object's "excess acceleration," or its unexpected boost in speed as it traveled through and ultimately out of our solar system in January 2018."Considering an artificial origin, one possibility is that 'Oumuamua is a light sail, floating in interstellar space as a debris from an advanced technological equipment," wrote the paper's authors, suggesting that the object could be propelled by solar radiation.The paper, written by Abraham Loeb, professor and chair of astronomy, and Shmuel Bialy, a postdoctoral scholar, at the Harvard Smithsonian Center for Astrophysics, points out that comparable light-sails already exist on earth."Light-sails with similar dimensions have been designed and constructed by our own civilization, including the IKAROS project and the Starshot Initiative. The light-sail technology might be abundantly used for transportation of cargos between planets or between stars."In the paper, the pair theorize that the object's high speed and its unusual trajectory could be the result of it no longer being operational."This would account for the various anomalies of 'Oumuamua, such as the unusual geometry inferred from its light-curve, its low thermal emission, suggesting high reflectivity, and its deviation from a Keplerian orbit without any sign of a cometary tail or spin-up torques."'Oumuamua is the first object ever seen in our solar system that is known to have originated elsewhere.At first, astronomers thought the rapidly moving faint light was a regular comet or an asteroid that had originated in our solar system.Comets, in particular, are known to speed-up due to a process known as "outgassing," in which the sun heats up the surface of the icy comet, releasing melted gas. But 'Oumuamua didn't have a "coma," the atmosphere and dust that surrounds comets as they melt.Multiple telescopes focused on the object for three nights to determine what it was before it moved out of sight. 3063

A mother in Clarksville, Tennessee has been charged after the death of her 4-month-old daughter.Officials said they responded to a home in the 200 block of Orleans Drive after 11:30 a.m. Saturday on a call of an unresponsive child.Officers found the 4-month-old not breathing. They performed CPR, and the baby was taken to Tennova Hospital where she failed to regain consciousness and passed away.Detectives investigated the infant’s death leading to a criminal homicide charge against the baby’s mother, 25-year-old Sarah Danielle Scribner.A witness, identified in a police affidavit as Aeriel Shiraef, told authorities Scribner called her and said she'd done something bad. Scribner allegedly told Shiraef she had stopped the baby from crying by putting her hand over the infant's mouth. She added the infant was no longer breathing.Scribner was booked into the Montgomery County Jail.  916

A mysterious monolith has appeared in downtown Las Vegas on Friday.Fridays in Vegas always bring surprises. Did anyone call this one? #Monolith pic.twitter.com/BRVhITrlpX— Circa Las Vegas (@CircaLasVegas) December 4, 2020 The object was standing under the Fremont Street Experience canopy as of Friday afternoon.WTF! Welcome To Fremont ....mysteriously lost Utah Monolith. #monolith pic.twitter.com/5fVIJh9rua— Fremont Street Exp (@FSELV) December 4, 2020 Several Fremont Street properties have shared their own images of the monolith throughout the day.We found the missing #Monolith... on @FSELV! pic.twitter.com/e5T8IzjkQk— Fremont Casino (@fremont) December 4, 2020 A Fremont Street Experience spokesperson said the team first noticed the object in the early morning hours on Friday but no further immediate information was available to share.Another similar monolith was recently discovered in a remote area of Utah back in November before it vanished a few days later. 982

A recent study by the U.S. Centers for Disease Control and Prevention found that 6% of more than 3,000 health care workers who were tested had antibodies to coronavirus. Still, after being retested 60 days later, 28% of them had antibody levels so low they were no longer detected."These results suggest that serology testing at a single time point is likely to underestimate the number of persons with previous SARS-CoV-2 infection, and a negative serologic test result might not reliably exclude prior infection," the authors of the study said.According to the CDC, blood samples were taken from 3,248 frontline health care personnel at 13 hospitals between April 3- June 19, 2020.194 of those healthcare workers had detectable antibodies to COVID, the agency said.Participants with higher initial antibody responses were more likely to have antibodies detected at the follow-up test than were those who had a lower initial antibody response, the study concluded.The authors added that the study shows that the window is limited for collecting potentially useful "convalescent plasma" from the blood of patients who have fought off COVID-19. 1151