BERNARDO O’HIGGINS RIQUELME, CHILE ARMY BASE and MONTEVIDEO, URUGUAY— December 22, 2020 — A coronavirus outbreak with 36 positive tests was reported on Monday at a Chilean Army base in Antarctica, the only continent, up to now, free of the virus. The army’s Monday release said that at the Bernardo O’Higgins Riquelme base, following suspicions, swabbing testing was practiced in all …