Effects of Prosocial and Hope-Promoting Communication Strategies on COVID-19 Worry and Intentions for Risk-Reducing Behaviors and Vaccination: Experimental Study

Elizabeth Scharnetzki   ¹ , PhD ;   Leo Waterston   ¹ , MA ;   Aaron M Scherer   ² , PhD ;   Alistair Thorpe   ³ , PhD ;   Angela Fagerlin   ^{3, 4} , PhD ;   Paul K J Han   ^{1, 5, 6} , MA, MD, MPH

¹ Center for Interdisciplinary Population and Health Research, MaineHealth Institute for Research, Portland, ME, United States

² Department of Internal Medicine, University of Iowa, Iowa City, IA, United States

³ Department of Population Health Sciences, University of Utah School of Medicine, Salt Lake City, UT, United States

⁴ Salt Lake City VA Informatics Decision-Enhancement and Analytic Sciences Center for Innovation, University of Utah School of Medicine, Salk Lake City, UT, United States

⁵ Tufts University School of Medicine, Boston, MA, United States

⁶ Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD, United States