Many people with diabetes who can't afford the insulin they need to stay alive are turning to social media for help.
Because of COVID-19 restrictions, a critical Shanghai plant that produces the dye has been operating at reduced capacity for weeks.
Are there enough vials, syringes and packaging to get an approved vaccine where it needs to go?
More than 200 economists have signed a letter to President Trump and congressional leaders. They say a Buy America order the Trump administration is contemplating for medical supplies would push up prices and exacerbate shortages.
Dependence on global supply chains can be useful in a crisis only if countries don't set up export barriers like some are now with medical supplies.