Symptom Survey

The COVID-19 symptom surveys are designed to help policymakers and health researchers better monitor and forecast the spread of COVID-19.

Features

Symptom Surveys

In partnership with University of Maryland’s Joint Program in Survey Methodology and Carnegie Mellon University’s Delphi Research Group, we invite people on Facebook to participate in surveys that ask about how they are feeling, including any symptoms they or members of their household have experienced and their risk factors for contracting COVID-19.

Privacy

The surveys are designed to provide valuable information to help monitor and forecast how COVID-19 may be spreading, without trading off the privacy of the people who took the surveys. Facebook does not share who took the surveys with our academic partners, and they do not share individual survey responses with us.

Global Reach

With over 2 billion people on Facebook, we are in a unique position to support public health research. We have partnered with trusted academic and nonprofit institutions to build a research network to address some of the world's greatest humanitarian issues. We're currently using our platform to deploy symptom surveys to support ongoing COVID-19 research and help inform public health decisions.

Local Insights

In addition to publicly available data offered by our partners, academic and nonprofit researchers around the world may request access to non-public, non-aggregated survey data for their research.

It has been very rewarding to leverage our faculty expertise in survey methodology and social data science to help connect researchers world wide with such invaluable data in real time. Our discussions with the WHO and many other organizations show clearly the need for this information.”

Dr. Frauke Kreuter, Director of the Joint Program in Survey Methodology at the University of Maryland

Who Uses Symptom Survey Data

Policymakers

New insights can help policymakers determine where to send resources, such as ventilators and personal protective equipment, or which areas are safe to start opening again. The data can also help health systems predict needs for hospital beds.

Public health officials

Public health officials can use this data to monitor changes in population dynamics and how these affect COVID-19 cases and spread as physical distancing policies around the world begin to change.

Researchers

Researchers can use the data to study COVID-19, such as how the pandemic is affecting population movement trends, and understand which areas may be at risk of an outbreak based on population characteristics and symptoms.

Methodology

In partnership with Carnegie Mellon University (CMU) and the University of Maryland (UMD), we invite people on Facebook to participate in surveys that ask about how they are feeling, including any COVID-19 symptoms they or members of their household have experienced, and about their risk factors for contracting COVID-19. To ensure that the survey sample more accurately reflects the characteristics of the population represented in the data, Facebook shares with CMU and UMD a random ID number and a single statistic, known as a weight value, that doesn’t identify a survey respondent but helps correct for survey sample bias. Facebook also shares the participant's language preference with these partners.

Case Studies

The trends over the last five months demonstrate that in certain regions, including Asia and Central and South America, there was a consistently high prevalence (>75%) of mask usage, while in Northern... The trends over the last five months demonstrate that in certain regions, including Asia and Central and South America, there was a consistently high prevalence (>75%) of mask usage, while in Northern Europe, there was a consistently low prevalence (<25%) of mask usage. In some countries we observed an increase over time, which may reflect the rising cases of COVID-19 or mask-related mandates and recommendations.

Symptom Map

Global Trends of Mask Usage in 19 Million Adults

The trends over the last five months demonstrate that in certain regions, including Asia and Central and South America, there was a consistently high prevalence (>75%) of mask usage, while in Northern Europe, there was a consistently low prevalence (<25%) of mask usage. In some countries we observed an increase over time, which may reflect the rising cases of COVID-19 or mask-related mandates and recommendations.

As Covid-19 has spread throughout the United States, poor and minority neighborhoods have been particularly hard-hit. According to an ongoing survey of more than 10 million Facebook users, respondents... As Covid-19 has spread throughout the United States, poor and minority neighborhoods have been particularly hard-hit. According to an ongoing survey of more than 10 million Facebook users, respondents in the poorest quartile of zipcodes have been 63 percent more likely than other respondents to have tested positive for the coronavirus. Respondents in minority-majority zipcodes have tested positive at a rate 58 percent higher than respondents in zipcodes with a majority of non-Hispanic whites.

Symptom Map

Covid Disparities in the United States

As Covid-19 has spread throughout the United States, poor and minority neighborhoods have been particularly hard-hit. According to an ongoing survey of more than 10 million Facebook users, respondents in the poorest quartile of zipcodes have been 63 percent more likely than other respondents to have tested positive for the coronavirus. Respondents in minority-majority zipcodes have tested positive at a rate 58 percent higher than respondents in zipcodes with a majority of non-Hispanic whites.

The Institute for Health Metrics & Evaluation used the Symptom Survey to evaluate mask use and concluded that mask use can reduce the risk of respiratory illness like COVD-19 by one-third or more.

Symptom Map

Wear a mask? Yes, always wear a mask.

The Institute for Health Metrics & Evaluation used the Symptom Survey to evaluate mask use and concluded that mask use can reduce the risk of respiratory illness like COVD-19 by one-third or more.

In new COVID-19 projections for sub-Saharan Africa, the Institute for Health Metrics and Evaluation (IHME) at the University of Washington forecasts that nearly universal adherence to mask-wearing and... In new COVID-19 projections for sub-Saharan Africa, the Institute for Health Metrics and Evaluation (IHME) at the University of Washington forecasts that nearly universal adherence to mask-wearing and social distancing mandates in hard-hit countries could prevent up to 60,125 deaths in the region by December 1.

Symptom Map

IHME Finds Mask-wearing and Other Measures Could Prevent Over 60,000 Deaths in Sub-Saharan Africa by December 1

In the News

Facebook Data Help Track COVID-19 Spread Voice of America Mark Zuckerberg: How Data Can Aid in the Fight Against COVID-19 The Washington Post Mark Zuckerberg explains plans for Facebook health surveys to research and combat coronavirus ABC News Encuestas de síntomas pueden ser una herramienta útil contra covid-19 El Tiempo How symptom data can help countries reopen safely Folha de S. Paulo Encuestas de síntomas contra Covid-19 Reforma Facebook start wereldwijd onderzoek naar symptomen coronavirus Nu.NL Facebook survey could predict COVID-19 likely case load for hospitals The Irish times Facebook wants to show link to Corona survey worldwide DPA/Der Welt

Learn More

To start working with this data in a visualized format, please click below to visit the COVID-19 Interactive Map & Dashboard. For researchers interested in data access, please visit: https://dataforgood.fb.com/docs/covid-19-symptom-survey-request-for-data-access/.

Visit the COVID-19 Interactive Map & Dashboard