Parasitology
Parasitology is the study of parasites. These can be animal parasites (such as toxoplasma or heartworms) or human parasites. Parasitologists study multicellular parasites such as
ascaris lumbricoides or flukes or unicellular
eukaryotes such as
malaria or
leishmaniasis. In general, prokaryotes fall under the field of
bacteriology rather than parasitology.
See also: Veterinary Parasitology