900 Years of Tree Diagrams, ... It opened the door to all new types of visual models." Are Trees Useful Anymore? It's surprising how constant trees are throughout these diverse visualizations.

Tell us about the tree diagram. HJ: It simply shows what happens if you cut even one contact that would have resulted in transmission. A tree diagram is not the type of thing epidemiologists would ...

The UK Government has recently imposed a ban on importing foreign ash trees in order to prevent the spread of fungal disease Chalara ... its capacity to infect new types of plant host species.