Community-based, participatory epidemiology apps provide communication forums and allow researchers to collect information from people close by or from great distances:
OVERVIEW
Participatory Epidemiology: Use of Mobile Phones for Community-Based Health Reporting (PLoS Medicine, 2010)
SAMPLING
The following journals are pertinent to the field. Those marked with (*) have impact factors listed in Epidemiology related fields in InCites Journal Citation Reports:
Sources and tools for specialized health statistics include: