Scientists 3D-Printed a Human Immune System to Battle Covid-19

A completely artificial immune system quickly pumps out much-needed antibodies

Antibodies (Y-shaped) respond to a SARS-CoV-2 infection. Image: Kateryna Kon/Science Photo Library/Getty Images

In the early stages of the Covid-19 outbreak, Maker communities around the globe fired up their 3D printers to come to the aid of overburdened hospitals and first responders. Individuals and groups of amateurs and experts alike…