The government is paying AstraZeneca $486 million to test and make a COVID-19 antibody cocktail candidate as the administration races to buy enough antibody drugs to last until coronavirus vaccines are available. The government already bought bulk lots of Regeneron’s antibody cocktail and is in talks with Eli Lilly , too. The two companies are at roughly the same stage of developing their antibody products, both companies have request emergency use authorizations, and early results from clinical trials are similarly...