Lagging COVID Antibody Uptake Continues To Worry US Government

US hopes more publicity will boost use of Lilly and Regeneron COVID-19 antibodies, once anticipated to be in short supply, but federal officials lack any other clear strategy to help overwhelmed health systems. Meanwhile Operation Warp Speed is testing the treatments against new virus variants and working on developing antibody cocktails that could avoid escape mutants as FDA issues guidance on potency assays for sponsors.