... anumber of diseases, including yellow fever, West Nile,St Louis encephalitis, and dengue fever. One or more of the four serotypes of the dengue virus areendemic in many parts of the world, including ... sequences, thestrains will be indistinguishable. The likelihood of suchan occurrence can be reduced by demanding more sequences for distinguishing between any two individ-ual strains; this, however, ... strainsregardless of their serotype, (c) unique to each serotype of the virus (present in all strains of the serotype), and (d) unique to each individual viral strain’s genome(present in the...