This project aimed to use a multiple-wave longitudinal panel survey to test a novel model of how views and behavior regarding personal and collective solutions to what became an emerging pandemic (COVID-19) are affected by various beliefs and attitudes, between persons and within persons over time. This model built upon both the Protective Action Decision Model (e.g., by including stages of behavior change measures; new measures of threat perception) and the PI’s prior work (e.g., by generalizing temporal trends across far more measures) to provide a more nuanced, dynamic portrait of how people respond to unexpected zoonoses (diseases that jump the species barrier) in a changing world, and why. Broader impacts included identification of how people perceive alternative means to manage 2019-nCoV risks, so as to help inform public health officials’ management of SARS-CoV-2 and future emerging infectious diseases.