[Elizabeth_Zeibig]_Clinical_Parasitology__A_Practi(z-lib.org)

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APPENDIX A
Glossary
undulating membrane Finlike structure connected
to the outer edge of some flagellates; aids
in the organism’s locomotion, moving in a wavelike
pattern.
unembryonated Unfertilized.
unfixed Refers to specimens that do not contain
added preservatives.
uta Refers to mucocutaneous leishmaniasis in the
Peruvian Andes.
vector (pl., vectors) Living carrier (e.g., an arthropod)
responsible for transporting a parasite from
an infected host to a noninfected host.
vertical transmission Process whereby some
arthropods transmit the microorganism they
carry to their offspring.
viscera Soft parts and internal organs of the major
cavities in the body.
visceral Pertaining to the internal organs of the
body, especially the liver, spleen, and lymph
nodes; also may be referred to a systemic
infection.
Winterbottom’s sign Enlargement of the postcervical
chain of lymph nodes related to trypanosomal
infections.
xenodiagnosis A procedure, primarily performed
in areas of the world with little, if any, means for
parasite identification, in which a noninfected
reduviid bug is allowed to feed on a person suspected
of having Chagas’ disease; feces from the
bug is then examined several weeks later for the
presence of trypomastigotes.
Ziemann’s dot (pl., dots) A fine dustlike dot
that stain pale pink and is seen in the cytoplasm
of heavily stained RBCs infected with Plasmodium
malariae; also known as Ziemann’s
stippling.
zoonosis (pl., zoonoses) Accidental human infection
with a parasite whose normal host is an
animal. As a result, completion of the parasite
life cycle may or may not occur; also referred as
a zoonotic occurrence.
zoonotic Parasitic disease that normally infects
animals and that may also infect humans; also
known as a zoonosis.
zygote (pl., zygotes) Fertilized cell, the product
of the union of a male and female sex cell; also
known as an ookinete.
zymodeme analysis Procedure used to diagnose
and identify parasitic infections that involves the
study of isoenzyme patterns of an organism.