“Influenza” is a generic term that describes a large host of variant viruses that are closely related. These viruses are not differentiated, as bacteria are, by genus and species but rather through a complex naming process that first distinguishes between the three major types of influenza viruses, either A, B, or C, and then the …
Salmonella is the genus name of a large group of bacteria which however contains only two distinct species. Unlike many bacterial genus groups the distinctions among the many, at last count 2,501, individually recognized types of Salmonella are not species but instead are known as serovars, or serological variants. These variants are recognized by differing …