An exploratory analysis of monthly measles surveillance records from 46 African countries between 2012 and September 2025. Using R, the study examines country-month record availability, annual and country-level trends, the influence of Madagascar on the 2019 peak, and variation in monthly reported cases. The analysis includes data quality checks, visualisations, and sensitivity analyses, with attention to reporting gaps and limitations in interpreting case counts.

A practice presentation using ioslides that explains why to use simple linear regression.

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