Data Parameters From Participatory Surveillance Systems in Human, Animal, and Environmental Health From Around the Globe: Descriptive Analysis - Carrie McNeil; Nomita Divi; Charles Thomas Bargeron IV; Andrea Capobianco Dondona; Kacey C Ernst; Angela S Gupta; Olukayode Fasominu; Lucy Keatts; Terra Kelly; Onicio B Leal Neto; May O Lwin; Mvuyo Makhasi; et al. (JMIR Public Health and Surveillance)