Genetic Diversity
As many individuals are asymptomatic carriers of D. fragilis it is proposed there exist a pathogenic and non-pathogenic variants. A study of Dientamoeba fragilis isolates from 60 individuals with symptomatic infection in Sydney Australia found that all were infected with the same genotype, which differed from the North American genotype.
Read more about this topic: Dientamoebiasis
Famous quotes containing the words genetic and/or diversity:
“We cannot think of a legitimate argument why ... whites and blacks need be affected by the knowledge that an aggregate difference in measured intelligence is genetic instead of environmental.... Given a chance, each clan ... will encounter the world with confidence in its own worth and, most importantly, will be unconcerned about comparing its accomplishments line-by-line with those of any other clan. This is wise ethnocentricism.”
—Richard Herrnstein (1930–1994)
“The diversity in the faculties of men, from which the rights of property originate, is not less an insuperable obstacle to a uniformity of interests. The protection of these faculties is the first object of government.”
—James Madison (1751–1836)