rinciples of Epidemiology in Public Health Practice" (3rd Edition, 2012).
assive," involves healthcare providers or laboratories reporting cases to public health authorities on a voluntary or mandatory basis without active prompting (e.g., routine notifiable disease reporting). While passive surveillance contributes to baseline data, it is less proactive and not specifically designed to signal early increases in illness, making it less fitting. Option B, "Active," entails public health officials actively seeking data from healthcare facilities or providers (e.g., calling to confirm cases during an outbreak). This is more resource-intensive and typically used for specific investigations rather than ongoing community trend monitoring, which aligns better with syndromic methods. Option D, "Targeted," refers to surveillance focused on a specific population, disease, or event (e.g., monitoring TB in a high-risk group). The scenario's broad focus on community illness indicators does not suggest a targeted approach.
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