22  What Can the Phylogenetic Tree Tell Us?

22.1 Quiz

⬜ Developing Hypotheses
⬜ Sample Collection
⬜ Outbreak Investigation
⬜ Sequencing
⬜ Bioinformatics
🟩 Molecular Epidemiology
⬜ Public Health Implementation

Looking at the phylogenetic tree, what would you expect to see if the virus originated from a single introduction into humans?
A. All human sequences would be identical.
B. Human sequences would cluster closely together (or group closely together) but differ slightly.
C. Human sequences would be widely dispersed (or scattered) throughout the tree.
D. Human sequences would be more similar to environmental microbes than to each other.