Table 1.

List of programs that are participating in GFV^a as of December 2022.

Program’s name	Territory coverage	Year of foundation	Description	Outcomes	Host institution
Outbreaks Near Me (formerly Flu Near You) [29]	United States and Canada	2011	A system that allows its users across North America to securely and anonymously self-report ILIb symptoms or to report feeling healthy.	Since users generally report before visiting a health care provider, trends on the spread of ILI are often detected before local and national public health agencies do.	Boston Children’s Hospital—Harvard University
FluTracking Australia [30]	Australia	2006	A web-based community-based acute respiratory illness surveillance system that is not biased by health seeking behavior, clinician testing practices, or differences in jurisdictional surveillance method.	To contribute to community-level acute respiratory illness surveillance in Australia To provide consistent surveillance of acute respiratory illness attack rates and testing across all jurisdictions and over time. Provide year-to-year comparison of the timing, attack rates, and seriousness of acute respiratory illness in the community.	Hunter New England Local Health District, Hunter Medical Research Institute—The University of Newcastle
FluTracking Hong Kong [31]	Hong Kong	2021	A web-based health surveillance system used to detect the potential spread of influenza and COVID-19.	To compare ILI syndrome proportions according vaccination status and seasonality, providing consistent monitoring of influenza surveillance activity.	School of Public Health—the University of Hong Kong
SickSense [32]	Thailand	2020	A network of digital volunteers who participate through anonymous reporting of their own health.	This system can identify early signs of an emerging epidemic threat, be an assistant to find real time signs of illness, and engage through digital tools.	The Health Promotion Foundation and Open dream
InfluenzaNetc [33]	Italy, France, the Netherlands, and Denmark	2009	A web-based survey tool to conduct syndromic surveillance through self-reported symptoms volunteered by participants residing in the InfluenzaNet countries.	The platforms collect demographic and risk-factor data from participants upon enrollment, capture weekly symptoms, and report analyzed surveillance results. This provides insights about the ILI activity.	Influweb.org, Covidnet.fr, Influmeter.dk, Infecieradar.nl

^aGFV: Global Flu View.

^bILI: influenza-like illness.

^cInfluenzaNet integration is still going on. This is a partial list of countries which enrolled in the platform.