Bacteria|Bacterial Typing Techniques|DNA, Bacterial|DNA, Viral|Databases, Genetic|Genome, Bacterial|Genome, Viral|Gram-Negative Aerobic Bacteria|Gram-Negative Bacteria|Gram-Negative Facultatively Anaerobic Rods|Gram-Positive Cocci|Internet|Listeria|Orthopoxvirus|Polymorphism, Genetic|Sensitivity and Specificity|Sequence Analysis, DNA|Sequence Homology, Nucleic Acid|Species Specificity|Tandem Repeat Sequences