CRP and COVID-19: In the present article, we present a retrospective study of 61 severely ill patients that received either L/R, Chlo, a combination of both, or a standard treatment without suspected antiviral agents, finding that either drug is ineffective at treating COVID-19, as they are not able to reduce mortality, hospitalization length, C-reactive protein (CRP), lactate dehydrogenase (LDH), ferritin, or d-Dimer levels or even to enhance gasometric and hematic parameters.