discovery science research lies behind not only the development of treatments and vaccines against SARS-CoV-2, but also our growing knowledge of how this novel virus spreads—and how best to prevent that spread. Work in fields as disparate as chemistry, engineering, and materials science has revealed that the virus can be transmitted via aerosolized particles and that the most effective masks are made of polymers. Read more in this installment of the COVID-19 discovery science Prequels.