{"version":"1.0","type":"rich","title":"TEST","description":"This visualization shows the spread of COVID-19 between countries in the early stages of the outbreak, using a Sankey diagram to trace the rate of transmission from China to other global regions. The diagram makes visible how provinces in China acted as primary carriers, with secondary travel from Europe and Australia facilitating further spread to America and Africa. Implemented with D3.js v5 and custom Sankey layout code, the visualization uses SVG rendering with draggable node rectangles and curved link paths whose thickness represents transmission value. The data is loaded from a local JSON file containing country-to-country links with numerical spread weights.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a560e9c4998a440b83618c107cede42d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}