Life-saving advancements have come a long way, but engineering artificial blood has been a challenge. Nicola Twilley is a New Yorker contributor and co-host of the podcast Gastropod. She talks to Krys Boyd about the breakthroughs — and setbacks — in the quest for artificial blood, why it’s needed more than ever, and why eyes are on Big Pharma to finance it. Her article is “The Long Quest for Artificial Blood.”  Learn about your ad choices: dovetail.prx.org/ad-choices