Medical Supply Chains

In this April 2, 2020 photo, Tilliesa Banks, right, an emergency services nurse at Harborview Medical Center in Seattle, helps a colleague put on a medical face shield prior to their shift in a triage tent outside the Harborview emergency department used to intake arriving patients who have respiratory symptoms. The face shield was 3-D printed and assembled by a member of a network of volunteers using a design approved and hosted by the U.S. National Institutes of Health. (AP Photo/Ted S. Warren)