Serratia marcescens, a pathogen with an uncanny resemblance to blood, has had an outsized influence on modern science. In the latest article from Asimov Press, author Corrado Nai explains how research into this organism has revealed how handshakes transmit disease, how bacteria enter the bloodstream, and how an illness can spread through large cities. Our audio correspondent, Carlos Bricio, interviewed Corrado Nai to learn more.

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