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Presenting genomic information

Look at the diagram above – this is a cluster diagram which shows relationships between TB genomes.

The cluster that is shown links TB genomes from the school outbreak described earlier

Each circle represents a group of people who were infected by TB isolates which do not differ by any Single Nucleotide Polymorphisms.

The numbers within the circles represent the year in which the TB was diagnosed for each patient – year 0 is the patient with the earliest diagnosis.

Lines indicate a difference of 1 SNP between groups.

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