Cuba credits two drugs with slashing coronavirus death toll

It ascribes the recent reduction in deaths of severely ill COVID-19 patients largely to the use beginning in April of two drugs that appear to help calm the “cytokine storm,” a dangerous overresponse by the immune system in which it attacks healthy tissue as well as the invading virus.

One is itolizumab, a monoclonal antibody produced in Cuba and elsewhere. The other is a peptide that Cuba says its biotech industry discovered and has been testing for rheumatoid arthritis in Phase II clinical trials.