claim: clinical trials of monoclonal antibodies to prevent covid-19 now enrolling
evidence_1: this network will allow us to test the safety and efficacy of monoclonal antibodies and other preventive measures to help identify how best to reduce the level of sars-cov-2 infection and ultimately end the covid-19 pandemic. monoclonal antibodies are laboratory-made versions of proteins naturally produced by the immune system in response to invading viruses or other pathogens.