title: "Disease Import"
showAbove: true
height: 200
data: 
  zip: "summaries.zip"
  url: "$RUN$.diseaseImport.tsv"
mark: 
  type: "area"
  strokeWidth: 3
  tooltip: true
encoding: 
  x: { field: "date", type: "temporal"}
  y: { field: "n", "stack": "center","axis": null }
  color: {field: "strain"}