Why are we excited about using DNA-based tests ?

• BECAUSE !!!!!!

  • Techniques are now available that permit analysis of a gene to the extent of a finding a difference in one nucleotide in the whole gene !

T-T-G-A-C-T-A-C-C-C-A-G-A-T-C I I I I I I I I I I I I I I IA-A-C-T-G-A-T-G-G-G-T-C-T-A-G

T-T-G-A-C-T-A-A-C-C-A-G-A-T-C I I I I I I I I I I I I I I IA-A-C-T-G-A-T-T-G-G-T-C-T-A-G

E. coli isolate A

E. coli isolate B

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