A developmental stage of a sporozoan within an oocyst
giving rise to sporozoites. Also one of the asexual stages of
development, which multiplies the larval forms within the
moluscan host, in the life cycle of certain trematodes.
The sexual cycle of the Telosporidea (Sporozoa); multiple
fission of a zygote which ultimately results in the production
of sporozoites; in malaria, that cycle occurring in the
One of the spindle-shaped cells resulting from sparogony;
the form of the malaria] parasite which is infective to
Referring to an organism or disease that occurs in an area
where it is not actually endemic.
A large rectangular cell which secretes into the esophogeal
lumen of nematodes of the family Trichuridae.
A plug in the inner wall of one end of the oocyst of certain
The entire body of a tapeworm which is composed of chains
A skin irritation or rash caused by the cercariae of nonhuman
or bird schistosomes which penetrate the skin but cannot
develop in an unsuitable host.
Occurring or existing in the wild or in wooded areas.
The close association or living together of two organisms of
different species; each of the organisms being known as a
A minute, crescent-shaped form of Toxoplasma which
resembles a merozoite and rapidly divides within host tissue
cells causing cell destruction.
A parasitic. intestinal worm of the class Cestoda which is
flattened, having a tapelike form and composed of