Public health impact analysis project demonstrating how trend monitoring and pre/post intervention evaluation can support infectious disease program decision-making in Nigeria.
# Monitoring_Trends_of_Lassa_Fever_in_Nigeria
## Project Overview
- This project demonstrates how routine surveillance data can be used to monitor infectious disease trends and evaluate the impact of public health interventions.
- Using a simulated but realistic dataset reflecting Lassa fever patterns in Nigeria (2019-2023), the analysis examines changes in confirmed cases, deaths, and case fatality rate (CFR) before and after aaa modeled intervention introduced in early 2021.
- This project is designed to showcase a practical, decision-support approach suitable for Monitoring & Evaluation (M&E) teams, public health NGOs, and program managers.
☑️ Objectives
- Monitor temporal trends in confirmed Lassa fever cases.
- Assess the impact of a public health intervention using pre/post comparison.
- Evaluate changes in disease severity using CFR.
- Translate statistical findings into clear, actionable insights.
📂 Data Description
- Time period: 2019-2023(monthly)
- Geographic scope: Six Nigerian states
- Key variables:
- Confirmed cases
- Deaths
- Case Fatality Rate (CFR)
- Intervention phase (Before / After)
- Rolling average of cases
❎ Note: The dataset is simulated for analytical demonstration and does not represent official surveillance data.
🔍 Methods
- Descriptive time-series analysis
- Rolling averages to smooth short-term fluctuations
- Pre- vs post-intervention comparison
- Visual trend inspection with intervention marker
- All analysis was conducted in Python using reproducible methods.
📈 Key Insights
- Confirmed cases were higher and more volatile before the intervention period.
- A strong and sustained reduction in average monthly cases was observed after the intervention.
- CFR showed visible fluctuations but became more stable post-intervention.
- Results suggest improved disease control following program implementation.
🧠 Programmatic Implications
- Supports evidence-based program evaluation
- Enables early detection of adverse …