Chloroquine does not inhibit infection of human lung cells with SARS-CoV-2 - Nature
Expression of TMPRSS2—a protease that activates SARS-CoV-2 for entry into cells—renders SARS-CoV-2 insensitive to chloroquine.
www.nature.com
However, they used a lung cancer cell line. They they showed is that when covid and hydroxycholoquin is around, COVID will attack the cancer cells and leaving normal cells intact.
So much for science.