Geographic information is collected through various methods: 1. Surveys and Field Studies: Collecting data directly from individuals or communities, often including their location. 2. Remote Sensing: Using satellite imagery and aerial photography to gather data on environmental conditions. 3. Geographic Information Systems (GIS): Integrating spatial data with other types of data to analyze and visualize epidemiological patterns. 4. Health Records: Extracting location-based information from electronic health records and disease registries.
