FILE PHOTO: A sign is pictured outside an Eli Lilly and Company pharmaceutical manufacturing plant at 50 ImClone Drive in Branchburg, New Jersey, March 5, 2021. Picture taken March 5, 2021. REUTERS/Mike Segar(Reuters) -Eli Lilly and Co said on Monday it had a revised agreement with the U.S. government for its COVID-19 antibody drug, bamlanivimab,