A living map showing the percentage values for COVID-19 and influenza like symptoms.
Go to our mapAn open API to access the fraction values for COVID-19 and influenza like symptoms.
Go to our APIData repository for daily individual survey responses.
Go to micro data repoCOVID-19 World Symptom 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 symptoms, social distancing behavior, 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 are available for researchers via data use agreements. Over half a million responses are collected daily.
Documentation
Detailed Methodology:Weights and Methodology Brief for the COVID-19 Symptom Survey
Symptom Survey Instruments:Version 1
Version 2
Version 3 & 4
Version 5
Version 6
Version 7
Version 8
Country Regional Codes:Country Region Numeric Codes
Professor
Director of Joint Program in Survey Methodology
Professor
Director of the Center for Geospatial Information Science