The experimental infusion doctors have given to President Trump seeks to counter a problem affecting many older Covid-19 patients: an ineffective immune response. Among other treatments, Mr. Trump has taken a drug cocktail from Regeneron Pharmaceuticals Inc. that hasn’t been approved for broad use but aims to jump-start an immune defense by supplying antibodies to help fight the coronavirus that causes Covid-19. The company says its results suggest the infusion can help people infected with the coronavirus who haven’t yet...

Source: Wall Street Journal October 05, 2020 14:58 UTC