Which of the following is not a typical source of medical intelligence (MI)?

• A. Espionage activities.
• B. Directly from people.
• C. Medical journals and newspapers.
• D. Satellite imagery.

Answer: (D)

Medical intelligence relies on information gathered from people directly involved in health care and from published medical knowledge. Data coming directly from clinicians, patients, and field health workers provide real-world, timely health signals essential for surveillance. Medical journals and newspapers are classic open-source channels that track disease trends, treatment outcomes, and public health events, forming the backbone of ongoing monitoring. Espionage activities can contribute in some settings by providing sensitive health-related data, but they are not a routine or standard source in public health practice. Satellite imagery, while useful for understanding geography, crowding, or environmental conditions, does not itself yield direct medical information about disease status or health capacity, so it is not a typical source of medical intelligence.