Red is infected; green is uninfected. Squares are males; triangles are females. Not that they’re all that visible at this resolution, but (very thin!) blue edges are marriages and (almost invisible!) violet lines are short term relationships.
May26
Colossus of Rhode 
an aids quilt?
[i was hoping there’d be a message hidden in the green…]
that’s neat! what’s the meaning behind the spatial configuration?
That was how GraphViz laid it out. (Nodes without edges — i.e. single people, are pushed away from the center and there’s a bounding square limited how far way they can go.)
And no, no hidden message… I’ve got animations now though!