HELMINTH: CHAPTER 9 PT.2

EQUINE PINWORM

OXYURIS EQUI COMMON NAME

HORSE

HOST OF OXYURIS EQUI

LARGE INTESTINE

P.S. OF OXYURIS EQUI

INTESTINAL MUCOSA

OXYURIS EQUI L4 FEEDS ON?

INTESTINAL CONTENTS

OXYURIS EQUI ADULT FEEDS ON?

RATTAILED

APPEARANCE OF TAIL OF HORSE AFFECTED WITH OXYURIS EQUI

IRRITATION, PRURITUS

PROGRESSES TO TAIL RUBBING OF HORSE AFFECTED WITH OXYURIS EQUI

CELLOPHANE TAPE TEST

DIAGNOSIS OF OXYURIS EQUI

BENZIMIDAZOLE

TREATMENT OF OXYURIS EQUI

HUMAN PINWORM, SEATWORM

ENTEROBIUS VERMICULARIS COMMON NAME

HUMAN, PRIMATES

HOST OF ENTEROBIUS VERMICULARIS

CECUM, APPENDIX

P.S. OF ENTEROBIUS VERMICULARIS

ENTEROBIUS VERMICULARIS

Distinguishing Char.

· Anal itching · TIWA

SELF INOCULATION

INFECTION OF ENTEROBIUS VERMICULARIS

ASYMPTOMATIC

FREQUENTLY, ENTEROBIASIS IS??

PERIANAL PRURITUS

TYPICAL SYMPTOM OF ENTEROBIUS VERMICULARIS

APPENDIX

ENTEROBIUS VERMICULARIS ARE OFTEN FOUND IN?

Probstmyria vivipara

Host	Horse
Site	Cecum & Colon
Distinguishing Char.	· Direct LC; ingestion of larvae thru coprophagy

Heterakis isolonche

Distinguishing Char.

· Nodular typhilitis

Heterakis gallinarum, gallinae

Distinguishing Char.	· Thickening of the cecal mucosa · Carrier of Histomonas meleagridis (causative agent of Blackhead diss. in turkey)

Histomonas meleagridis

Causative ag

Heterakis

Host	Birds
Site	Large Intestine (cecum)
I.H.	Direct LC

ASCARIDIA GALLI, COLUMBAE, DISSIMILIS, DISPAR

Host	Domestic and Wild bird
Site	Small Intestine
I.H.	Direct LC
Paretenic	Earthworm (w/L2)
Distinguishing Char.	· Nodular typhilitis

THREADWORM, DWARF WORM

STRONGLYOIDES WESTERII

SMALL INTESTINE

P.S. OF STRONGYLOIDES

FEMALE

PARASITIC IN STRONGYLOIDES

PARTHENOGENETIC

PARASITIC FORM OF STRONGYLOIDES

STRONGYLOIDES WESTERII

Host	Horse and Donkey
Site	Small Intestine
I.H.	Direct LC

*Strongyloides

STRONGYLOIDES PAPILOSUS

Host	Ruminant
Site	Small Intestine

*Strongyloides

STRONGYLOIDES RANSOMI

Host	Pig
Site	Small Intestine
Distinguishing Char.	· Transmitted transcolostrally

TRANSCOLOSTRALLY

TRANSMISSION OF STRONGYLOIDES RANSOMI

STRONGYLOIDES STERCORALIS

Host	Dog, Cats & Man
Site	Small Intestine

STRONGYLOIDES AVIUM

Host	Poultry
Site	Small Intestine and also cecum

PALISADE, RED WORM

COMMON NAME OF STRONGYLUS EQUINUS

STRONGYLUS EQUINUS

Host	Horse
Site	Cecum & colon
I.H.	Direct LC – ingestion of L3
Distinguishing Char.	· 3 teeth

CECUM, COLON

P.S. OF STRONGYLUS

STRONGYLUS EDENTATUS

Host	Horse
Site	Cecum & colon
I.H.	Direct LC – ingestion of L3
Distinguishing Char.	· no teeth

STRONGYLUS VULGARIS

Host	Horse
Site	Cecum & colon
I.H.	Direct LC – ingestion of L3
Distinguishing Char.	· 2 teeth

OESOPHAGOSTOMUM RADIATUM, COLUMBIANUM, VENULOSUM

Host	Ruminants
Site	Large & small intestine
I.H.	Direct LC – ingestion of L3
Distinguishing Char.	· Pimply gut extensive nodule formation · Nodular worms

OESOPHAGOSTUMUM DENTATUM, QUADRISPINULATUM, BREVISCADUM, GRANATENSIS

Host	Pigs
Site	Large & small intestine
I.H.	Direct LC – ingestion of L3
Distinguishing Char.	· Pimply gut extensive nodule formation · Nodular worms

CHABERTIA OVINA

Host	Sheep, Goat, occasionally Cattle
Site	Colon
I.H.	Direct LC – ingestion of L3
Distinguishing Char.	· L5 feeds by ingesting large plugs of mucosa and blood

LARGED MOUTHED BOWEL WORM

CHARBETIA OVINA

KIDNEY WORM OF PIG

COMMON NAME FOR STEPHANURUS DENTATUS

STEPHANURUS DENTATUS

Host	Pig
Site	Kidney and Perirenal Tissue
I.H.	Direct LC – ingestion of L3

L4

LARVAL STAGE IN STEPHANURUS DENTATUS THAT TEARS TISSUE OF ORGANS

ERRATIC MIGRATION

COMMON IN STEPHANURUS DENTATUS (LIVER)

GAPEWORM, REDWORM, FORKED WORK

SYNGAMUS TRACHEA COMMON NAME

SYNGAMUS TRACHEA

Host	Non-aquatic birds
Site	Trachea

SYNGAMUS LARYNGEUS

Host	Cattle and Buffaloes
Site	Larynx and Upper Tract

SYNGAMUS LARYNGEUS

Distinguishing Char.

· Worms occlude the air passages causing difficulty in breathing (gapes)

SYNGAMUS TRACHEA

Distinguishing Char.

· Permanently in copula forming y- shape · Worms occlude the air passages causing difficulty in breathing (gapes)

SYNGAMUS

I.H.	Direct LC - ingestion of free L3, L3 in egg - ingestion of earthworm, beetles, slugs, snails

CANINE HOOKWROM

COMMON NAME OF ANCYLOSTOMA CANINUM

ANCYLOSTOMA CANINUM

Host	Dog, Foxes, rarely Man
Site	Small Intestine
I.H.	Direct LC; oral infection and skin penetration

*Ancylostoma

ANYCYLOSTOMA TUBAEFORME

Host	Dog, Foxes, rarely Man
Site	Small Intestine
I.H.	Direct LC; oral infection and skin penetration

ANYCYLOSTOMA BRAZILIENSE

Host	Dogs & Cats
Site	Small Intestine
I.H.	Direct LC; oral infection and skin penetration
Distinguishing Char.	· Cutaneous larva migrans but may also cause by others · No prenatal and lactogenic infection

ANYCYLOSTOMA DUODENALE

Host	Man, Wild Carnivores, and Pigs
Site	Small intestine
I.H.	Direct LC; oral infection and skin penetration
Distinguishing Char.	· No prenatal and lactogenic infection

UCINARIA STEPHANOPHALA

Host	Dog, Cat, Fox
Site	Small intestine
I.H.	Direct LC; oral infection and skin penetration
Distinguishing Char.	· Pedal dermatitis

ANGRIOSTOMUM VRYBURGI

Host	Cattle and Buffaloes
Site	Small & Large intestine
I.H.	Unclear life cycle

COMMON HOOKWORM OF MAN

COMMON NAME FOR NEACTOR AMERICANUS

NECATOR AMERICANUS

Host	Man, dog & pig
Site	Small intestine

BUNOSTOMUM TRINGOCEHALUM

Host	Sheep and Goats
Site	Jejunum, Ileum
I.H.	Direct life cycle

BUNOSTOMUM PHLEBOTOMUM

Host	Cattle
Site	Duodenum

TRICHOSTRONGYLUS LONGISPICULARIS

Host	Cattle and sheep
Site	Small intestine
I.H.	Direct LC
Distinguishing Char.	· Cause formation of tunnels; cause a characteristic Ringworm lesion; “Black scouring”

*Trichostrongylus

TRICHOSTRONGYLUS COLUMBRIFORMIS

Host	Ruminants
Site	Small intestine

*Trichostrongylus

TRICHOSTRONGYLUS CAPRICOLA

Host	Sheep and Goat
Site	Small Intestine, sometimes Abomasum

TRICHOSTONGYLUS AXEI

Host	Ruminants, Pig, Horse and Man
Site	Abomasum & Stomach

*Trichostrongylus

BANKRUPT/BLACK SOUR WORM

COMMON NAME FOR TRICHOSTRONGYLUS LONGISPIRACULARIS

OSTERTAGIA OSTERTAGI, CIRCUMCINCTA, TRIFURCATA

Host	Ruminants
Site	Abomasum
I.H.	Direct LC; oral infection and skin penetration
Distinguishing Char.	· Abomasum (Morocco leather in appearance in heavy infection) · Bright green diarrhea

BROWN STOMACH WORMS

COMMON NAME FOR OSTERTAGIA OSTERTAGI, CIRCUMCINCTA, TRIFURCATA

COOPERIA

Host	Ruminants
Site	Small intestine
Distinguishing Char.	· Watch spring–like posture

HYOSTRONGYLUS RUBIDUS

Host	Pig
Site	Stomach
Distinguishing Char.	· Chronic gastritis

ORNITHOSTRINGYLUS RUBIDUS

Host	Pigeon
Site	Crop, Proven & Small Intestine

NEMATODIRUS

Host	Ruminants
Site	Small intestine

THREAD NECK STRONGYLE

NEMATODIRUS

HAEMONCHUS CONTORTUS/PLACEI

Host	Ruminants
Site	Abomasum
Distinguishing Char.	· Each worm sucks .05 ml of blood per day

TWISTED STOMACH WORM, WIRE WORM, BARBER’S POLE WORM

COMMON NAME FOR HAEMONCHUS CONTORTUS/PLACEI

FAFFA MALAN CHART

elective treatment method for controlling the level of parasitic barber's pole worm (Haemonchus contortus), also known as twisted wireworm) among domesticated small ruminant populations.

DIOCTOCAULUS VIVIPARUS

Host	Cattle
Site	Bronchi and bronchioles

DICTYOCAULUS FILARIA

Host	Sheep & goat
Site	Bronchi and trachea

DIOCTYCAULUS ARNFIELDI

Host	Horse
Site	Bronchi and Bronchioles
I.H.	Direct LC
Distinguishing Char.	· Catarrhal Parasitic bronchitis

LUNG WORM

COMMON NAME OF DIOCTYCAULUS ARNFIELDI

Metastrongylus elongatus/apri, salmi, pudendotectus

Host	Pigs, sheep, deer, ox and man
Site	Bronchi and Bronchioles
I.H.	Direct LC
Distinguishing Char.	· Pulmonary consolidation, bronchial muscular hypertrophy and Peribronchial Lymphoid hyperplasia

*Metastrongylus

Prostrongylus rufescens

Host	Sheep & Goat
Site	Small Bronchioles

red lungworm

Prostrongylus rufescens

Muellerius capillaris

Host	Sheep & Goat
Site	Alveoli

Aelustrongylus abstrusus

Host	Cat
Site	Lung and Small Bronchioles
I.H.	Snail
Paratenic	Birds and Rodents

Cat lung worm

Aelustrongylus abstrusus

Angiostrongylus cantonensis

Host	Rats
Site	Right ventricle and Pulmonary artery
Distinguishing Char.	· Eosinophilic meningoencephalitis

Angiostrongylus vasorum

Host	Dogs
Site	Right ventricle and Pulmonary artery
I.H.	Snail

Gurltia sp

Host	Cat
Site	Thigh Veins
I.H.	Shrimp and Crabs