As the nationwide infant formula shortage continues, parents are scrambling to feed their children.43 percent of formula is sold out nationwide as retailers struggle to keep it on the shelves. That's according to Datasembley, which collects real-time data on retail and grocery services. There isn't a substitute for formula and that is especially true for children who require specialty formulas. So where can parents go for help? And what solutions exist to ensure this crisis doesn't happen again?Want to support 1A? Give to your local public radio station and subscribe to this podcast. Have questions? Find us on Twitter @1A.