Baltimore Is Rethinking What It Means To Call 911 — And Who Responds The city wants to stop health crises before they happen and is creating a new service to do that when people call 911. Previous article: Pediatricians and Health Departments Sidestep Trump’s CDC on Vaccine Guidance Prev Next article: Nurses Chase Cyclospora, Aided by Interviews, Fast-Food Receipts — And the Messy Details Next