A

Acaricidal compound

acaricides are compounds that act against ectoparasites belonging to the Class Arachnida, sub-class Acari by zoological nomenclature

 

Acaricide

acaricides are compounds that act against ectoparasites belonging to the Class Arachnida, sub-class Acari by zoological nomenclature

 

Anthelmintic

a compound that destroys or causes the expulsion of parasitic worms

 

Application

like treatment, but describing how veterinary medicinal products can be administered or applied to animals, typically orally, topically or by injection.

 

Ascarid

a worm of the family Ascarididae which includes Ascaridia, Ascaris, Toxocara and Toxascaris

 

Asexual reproduction

multiplication of parasite stages by binary or multicellular fission without production of sexually differentiated stages

 

Asymptomatic

capable of carrying and transmitting disease but exhibiting no symptoms or clinical signs

 

Atopic

the animal is allergic or sensitised to antigens from the environment

 

B

Bradyzoites

slow-dividing tissue stages contained within a pseudocyst or maturating tissue cyst

 

C

Cerumen

earwax

 

Cestodes

any of various flatworms of the class Cestoidea, including tapeworms

 

Chemoprophylaxis

disease prevention by use of chemicals or drugs

 

Chemotherapy

disease treatment by use of chemicals

 

Control

general term comprising ‘therapy’ and ‘prevention (prophylaxis)’

 

Coproantigen test

test to detect antigen in faeces

 

Cysts

a) environmental resistant stage of Giardia excreted with faeces able to survive outside the host;
b) mature stage of heteroxenic protozoa in the extraintestinal tissues (= tissue cysts)

 

D

Definitive/Final host

a host in which the sexual development (production of sexually differentiated stages) is completed (in contrast to intermediate hosts)

 

Dermatoses

any skin disease or lesion on the skin

 

Dormozoites

sleeping cells – non-dividing tissue stages. Development continues once they are transmitted to a carnivorous host until they are transmitted to a carnivorous host

 

E

Ectoparasiticide

compound developed for the on-animal use as a therapeutic agent to eliminate any existing ectoparasite infestation and prevent reinfestation

 

Endemic

prevalent in or restricted to a particular region

 

Epidemiology

study of the causes, distribution and control of disease

 

Erythematous

red skin due to congestion of the capillaries

 

Excystation

escape of parasite stages from the multilayered shell which cover the environmental stages (see cyst, oocyst)

 

F

Filaria

nematode worms now classified as Onchocercidae

 

H

Helminths

worms: in this context parasitic

 

Heteroxenic

infecting several host species in the life cycle

 

Homoxenic

infecting only one host  in the whole life cycle

 

Hookworm

parasitic nematode with hooked mouthparts

 

Hyperpigmentation

increase in the natural colour of the skin

 

I

IGR

Insect Growth Regulator = Compound that may inhibit the development of immature stages of insects, hence kill them

 

Infection

invasion and multiplication of microorganisms in body tissues

 

Infective

capable of producing infection

 

Infestation

the presence of parasites in the environment, on the skin, or in the hair of a host

 

Ingestion

taking into the body by mouth

 

Insecticide

insecticides are compounds that act against ectoparasites belonging to the Class Insecta by zoological nomenclature

 

Integrated Control

the use of several measures to control different parasites or parasite stages present on the animal and stages present in the environment

 

Intermediate host

a host in which asexual reproduction or development is completed

 

Intertriginous

areas of skin that may rub together e.g. the axilla between the leg and body of an animal

 

L

Lichenification

thickening of the skin caused by chronic inflammation resulting from prolonged scratching or irritation

 

M

Metastrongylids

family of nematode parasites, the adults invade the bronchi and lungfamily of nematode parasites, the adults invade the bronchi and lung

 

Morphology

form and structure of organisms

 

Motile

moving

 

N

Nematodes

roundworms, in this context parasitic

 

O

Oocyst

a tenacious spore stage capable of surviving outside the host

 

P

Palaearctic

a zoogeographical region consisting of Europe, Africa north of the Sahara, and most of Asia north of the Himalayas

 

Parasiticide

compound developed for killing parasites

 

Paratenic host

a host which serves to maintain the life cycle of the parasite; no parasite development or reproduction takes place

 

Patent infection

a mature infection which is producing immature stages such as eggs or oocysts

 

Pathogenesis

the origin, development and resultant effects of a disease

 

Pathogens

an agent that is capable of causing diseasean agent that is capable of causing disease

 

Pesticide

compound developed for the elimination of different stages of parasites in the environment

 

Phlebotomes

sand flies – in Europe Psychodid sand flies of the genus Phlebotomus are responsible for the transmission of leishmaniosis

 

Prepatency

the period before an infection is mature and producing eggs or equivalent

 

Prevention

measures taken prior to any infestation or infection of the pet animal with parasites, to prevent the establishment of an infestation, infection or disease.

 

Proglottids

segments of a tapeworm

 

Protozoa

any of a large group of single-celled organisms

 

Pruritus

severe itching

 

R

Repellent

compound, which makes a host unattractive to a parasite and thus can prevent attack or establishment

 

S

Schizogony

see asexual reproduction

 

Sporocysts

a multilayered stage within oocysts that contains the sporozoites

 

Sporozoites

the cellular infective units that evolve from excystation of oocysts and sporocysts

 

Sporulation

development of sporozoites from the stages of sexual development

 

Subcutaneous worms

worms that burrow under the skin

 

Symptomatic

relating to or based on symptoms

 

T

Tachyzoites

fast-reproducing parasite stages within the host cell

 

Therapy

any medical intervention to cure a disease; this includes the use of veterinary medicinal products (treatment), to eliminate an existing parasite infestation

 

Tissue cyst

see cysts

 

Topical treatment

treatment applied to the skin surface

 

Treatment

application of veterinary medicinal products (medication) as deemed necessary based on any given diagnosis or risk

 

Trematodes

flatworms, in this context parasitic

 

Trophozoites

motile, active stages in the host e.g. within the life cycle of Giardia and other protozoa

 

V

Vector borne

an organism, such as a mosquito or tick, that carries disease-causing microorganisms from one host to another

 

Viscera

soft internal organs of the body

 

Z

Zoonosis

any infectious disease that can be transmitted between animals and humans

 

Zoonotic

transmissible between animals and humans stages (see cyst, oocyst)