A live map of the world showing the percentage values for COVID-19-like symptoms, mask wearing, vaccine acceptance and more based on responses to the COVID-19 World Symptoms Survey.
Go to our mapAn open API to access aggregated COVID-19 World Survey data.
Go to our APIData repository for daily individual survey responses with survey variables and weights.
Go to microdata repoContengency tables providing more granular breakdows of survey reponses such as vaccine update and acceptance.
Go to Contengency Tables
COVID-19 World Symptoms Survey is a partnership between Facebook and academic institutions. The survey is available in 56 languages. A representative sample of Facebook users is invited on a daily basis to report on topics including, for example, symptoms, social distancing behavior, vaccine acceptance, mental health issues, and financial constraints. Facebook provides weights to reduce nonresponse and coverage bias. Country and region-level statistics are published daily via public API and dashboards, and microdata is available for researchers via data use agreements. Over half a million responses are collected daily.
Data for the United States is not included in the World Symptoms Survey but is available at covidcast.cmu.edu
Documentation
Overview of Survey Design:Partnering with Facebook on a University-based Rapid Turn-around Global Survey
Detailed Methodology:Weights and Methodology Brief for the COVID-19 Symptoms Survey
Professor
Director of Joint Program in Survey Methodology
Professor
Director of the Center for Geospatial Information Science
