Having two doses of a COVID-19 vaccine has been linked with negative protection against symptomatic infection with the disease, scientists say, while a previous infection without vaccination offers around 50 percent immunity, according to a study analyzing the Omicron wave in Qatar.
FIFA and World Athletics, two international governing bodies for sports, revealed Monday they are reviewing their eligibility rules for transgender athletes.
A 15-year-old was killed and three others were hospitalized, including a police officer, after a fight led to gunfire at a Juneteenth festival in Washington D.C. Authorities believe the teenager was killed in a resulting stampede.