Three years ago, America was in the midst of an infant-formula crisis. Abbott, one of the world’s biggest formula producers, had issued a nationwide recall after two children who consumed its products died of Cronobacter , a bacterial infection that can lead to complications such as meningitis. Because Abbott produced about 40 percent of the U.S. supply of infant formula, the recall contributed to a monthslong nationwide shortage stemming partially from pandemic-related supply-chain issues.