intro to Parasitic Diseases in Dog and Cats

define genus

group or subfamily

define species (2)

kind or below a genus

define sp.

one kind of species under that genus

define spp

multiple kinds of species under that genus

define helminths

parasitic worms

define platyhelminthes

flatworms

what species are under helminths

platyhelmintheS

what 2 species are under playhelminths

1. cestodes

2. trematodes

what are under nematodes

1. roundworms

2. hookworms

define protozoa

single cell parasites

what species are under protozoa (2)

1. Flagellates

2. Apicomplexans

what is under flagellates (2)

1. fiardia

2. trichomonas

what species is under apicomplexans (5)

1. Eimeria

2. Cystoisospora

3. Cryptosporidium

4. Coccidia

5. Toxoplasma

define definitive host

The host in which a parasite reaches maturity and reproduces sexually.

define intermediate host

The host that supports the immature or non-reproductive forms of a parasite

define Paratenic host

An intermediate host that is required for the completion of a parasite's life cycle, but there is no development of the parasite.

define reservior host

Can harbour a pathogen indefinitely with no bad effects to the host.

define direct life cycle

Definitive Host → Environment → Definitive Host

define indirect life cycle

Definitive Host → Environment → Intermediate Host → Definitive Host

define pre-patent period

The length of time it takes for a parasite to develop to an adult once it infects the definitive host

what are the 3 migration patterns

1. mucosal

2. tracheal

3. somatic

define mucosal migration pattern

stays in tissue

define tracheal migration pattern

pulmonary vein into lungs

define somatic migration pattern (2)

1. pulmonary vein into lungs

2. encysts in tissues