COVID-19 Systems Causal Loop Map¶
Specification¶
The full specification below is extracted from Chapter 19: "COVID-19 as a Public Health Master Case Study".
Type: microsim
**sim-id:** covid-systems-map<br/>
**Library:** p5.js<br/>
**Status:** Specified
Interactive causal loop diagram for COVID-19 system dynamics. Nodes (rendered as labeled oval buttons) represent: Infectious Population, Transmission Rate, NPI Compliance, Vaccine Coverage, Vaccine Hesitancy, Misinformation Volume, Political Polarization, ICU Occupancy, Mortality Signal, Pandemic Fatigue, Variant Fitness, Wastewater Signal. Edges connect nodes with polarity labels (+ or −). Loops are highlighted in distinct colors: R1 transmission loop (red), R2 misinformation loop (orange), R3 polarization loop (purple), B1 herd immunity loop (green), B2 surge loop (blue). Clicking any node highlights all connected edges and displays a 2–3 sentence description of that variable's role in the system. Clicking any loop label animates the loop path and shows a popup explaining the feedback mechanism. Legend in lower right shows R (reinforcing) vs B (balancing) loop notation. Reset button returns to default view. Canvas: 800×520px.