Spiral Visualization

Visualization Settings

Adjust these settings to customize your visualization experience. Changes are applied immediately.

Display Settings

Data Point Size

Small (5px) Medium (10px) Large (15px) Extra Large (20px)

Size comparison → Current: 10px

Data Point Opacity

30% 50% 80% 100%

Opacity levels → Current: 80%

Background Brightness

Dark (50%) Dim (80%) Normal (100%) Bright (130%)

Background brightness → Current: 100%

Animation & Interaction

Transitions

Smooth animations Instant changes

Affects dot appearance when switching metrics

Grid Lines

Show grid Hide grid

Radial lines from center to edge

Month Labels

Show months Hide months

January, February, March... around the spiral

Tooltip Behavior

Tooltip Delay

Instant 200ms 500ms 1 second

How quickly tooltips appear on hover

Cursor Following

Fixed position Follow cursor

Whether tooltips move with your mouse

Accessibility & Data

High Contrast

Normal contrast High contrast

Enhanced visibility for better accessibility

Zero Values

Hide zeros Show zeros

Display countries with no reported data

Data Scaling

Global scale Yearly scale Adaptive

How data values are normalized

How This Visualization Works

Spiral Timeline Concept

This visualization displays influenza data as a spiral timeline where:

Each full spiral rotation represents one year (12 months)
Data points are positioned by month around the spiral
Point size indicates the magnitude of values
Colors represent different countries
Hovering over data points reveals detailed information in tooltips

Interaction Guide

🖱️ Mouse Interaction:

Hover over any data point to see detailed information
Tooltips show country, date, metric value, and change from previous month
For Seasonal Risk Patterns: risk category and visual risk bar included

⚙️ Controls:

The spiral displays all available years of data at once
Select different metrics from the left panel
Use Country Analysis panel for detailed comparisons
Access Settings (above) to customize the visualization

Data Metrics Explained

Available Metrics:

Positive Test Share: Percentage of influenza tests that returned positive
Influenza-like Illnesses (ILI): Reported cases of flu-like symptoms
Acute Respiratory Infections (ARI): Broader category of respiratory illnesses
Severe ARI Cases & Deaths: Most serious respiratory infection outcomes
ILI per 1000 Outpatients: Normalized rate of flu-like illness
Seasonal Risk Patterns: AI-calculated risk scores combining multiple factors

Seasonal Risk Patterns Algorithm

This advanced metric combines multiple factors to create risk scores (0-100):

25% Predictability: How consistent the pattern is across years
45% Global Severity: How severe compared to worldwide data
15% Seasonal Timing: Bonus for typical flu season months
15% Seasonal Strength: How seasonal the country's pattern is

Risk Categories: Very High (70+), High (50-69), Moderate (30-49), Low (15-29), Very Low (<15)

Data Sources & Methodology

Data Source: World Health Organization (WHO) Global Influenza Surveillance Network

Coverage: 2009-2024, focusing on 6 key countries with comprehensive reporting

Update Frequency: Data reflects the most recent WHO submissions

Processing: Raw surveillance data is cleaned, normalized, and enhanced with seasonal risk calculations

Limitations: Reporting practices vary by country; some gaps in data may exist

Country Color Codes

Japan - Red from the Japanese flag (rising sun)

North Korea - Cyan representing the blue from the Korean flag

Germany - Yellow from the German flag (black-red-gold)

Iceland - Purple representing the blue from the Icelandic flag

United Arab Emirates - Sky blue representing unity and the sky

Iran - Orange representing the warmth of Persian culture

Data Categories

Data Source & Disclaimer

All data sourced from WHO FluNet (Global Influenza Surveillance and Response System) and collected according to World Health Organization surveillance standards and reporting protocols. Data represents officially reported cases and may not reflect actual disease burden due to variations in healthcare access, testing capacity, and reporting practices between countries and time periods. Surveillance systems and reporting completeness may vary significantly across regions. Data last retrieved from WHO FluNet database in December 2024.

INFLUENZA

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