Disease overview
Background information
Source-backed disease background is not available yet. Verified surveillance data, coding information, and downloads remain available.
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Country surveillance trends
Choose a country, source, and measure. Each line retains its published reporting period and definition.
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Coverage
Reporting countries and regions
The map shows reporting coverage. Select a measure or open a shaded location to inspect its data.
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Surveillance pattern
Year × month seasonality by country
Review one country’s published monthly values by year. Empty cells indicate values the source did not publish.
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Downloads and methods
Choose a time range and download CSV, JSON or XLSX files.