Timely dissemination of research findings leads to scientific progress. This is especially important in fields such as biology and medicine, where research findings can affect the development of health care policy and decision-making. In situations such as the Ebola, Zika, and coronavirus disease 2019 (COV-ID-19) outbreaks, scientific research needs to be released to the public as soon as possible to facilitate prompt prevention and treatment. The need to share research findings immediately has created a new trend, known as preprints. Editors and publishers need to understand the concept of preprints and should consider how to handle rapidly changing expectations and practices regarding preprints.