The new coronavirus can infect not only lungs, but also blood vessels, kidneys, livers and other organs, according to various experiments with laboratory-made organoids. Organoids, created from stem cells, assemble various cell types that comprise organs in the body. This allows them to model what happens in reality better than standard cell-line experiments can. Doctors knew that various organs were injured in the course of a coronavirus infection, but they didn’t know whether that damage was a direct result of the virus entering those organs. The experiments suggest it is. “We are fairly confident now that the virus that causes COVID-19 can infect tissue outside the lung and significantly contribute to disease,” says genetic engineer Josef Penninger.

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