CURRENTGLOBAL New study shows immunity drops quickly in mild Covid-19 casesEditor Selangor JournalJuly 22, 2020July 22, 2020 by Editor Selangor JournalJuly 22, 2020July 22, 2020 WASHINGTON, July 22 — A study published on Tuesday shows that in people with mild Covid-19 cases, their antibodies against the coronavirus drop sharply over...