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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

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 Virginia man says he was fired from his job at a shipyard for refusing to remove a hat supporting President Donald Trump. The Virginian-Pilot reports that Dave Sunderland was fired last week from Newport News Shipbuilding. The private firm builds the nation’s aircraft carriers and some of its submarines. Sunderland said the human resources department said he violated a policy that bars yard workers from “campaigning” while on the job. Sunderland wore the hat as he walked from his car to his work area inside the gates, and sometimes during a safety meeting at the beginning of his shift. A spokesperson for Newport News Shipbuilding says the company doesn't allow political campaign or partisan political activities on company property. 751

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

A New Jersey state trooper admitted to the state's attorney general that he pulled over women while on duty in an attempt to ask women out on a date, WNBC-TV reported. The trooper, 37-year-old Marquice Prather, pleaded guilty on Monday to charges of invasion of privacy, tampering with physical evidence and falsifying or tampering with records. He had been suspended without pay since December after accusations mounted against the trooper. WNBC reported that Prather will be banned from public office, and likely will face probation for the charges. Authorities told WNBC that Prather tampered evidence by turning off his microphone, as the trooper claimed the microphone malfunctioned. Prather was accused by authorities of going through personal information and photos on the cellphones of female motorists. Prather was also accused of copying intimate photos and videos of the women, and he would solicit the women to go on a date with him. 1028