Section II. CLASS PIROPLASMASIDA
Members of Class Piroplasmasida, genus Babesia are characterized by bodies
which are small, pyriform to ameboid. They possess no spores, flagella, or cilia.
The reproduction is asexual by cell division or schizogony. In the life cycle, ticks
are used as vectors. In some publications, these organisms are placed in the Class
PARASITIC MEMBER OF CLASS PIROPLASMASIDA
ORGANISM 1--CLASS Piroplasmasida--Genus Babesia
COMMON NAME: Redwater fever; piroplasmosis; babesiosis.
PATHOGENESIS: Many species are pathogenic to vertebrates; over one hundred
cases in humans (splenectomized persons are most susceptible); could be fatal.
GEOGRAPHICAL DISTRIBUTION: Most cases from Nantucket Island, Massachusetts.
HABITAT: Intracellar in RBCs.
INTERMEDIATE HOST: vertebrates; man.
TICKS: Definitive host, vector.
VERTEBRATES: Intermediate host.
INFECTIVE FORM TO MAN: Vermicle.
MODE OF INFECTION: Injection.
SPECIMEN OF CHOICE: Blood.