Overview of Facebook Use by Hospitals in Italy: A Nationwide Survey during the COVID-19 Emergency.

: Facebook is the most popular social network across the world and also allows users access to health information. Our study presents an overview of the official Facebook profiles of hospitals in Italy ( = 1351) and how much they are used. : All hospitals were surveyed on the number of Facebook posts in May (post-lockdown) and October (second pandemic wave) 2020.