Food-Borne & Contact Transmitted Parasites Flashcards
Trichinella spiralis
(2) final hosts:
(1) swine
(2) other vertebrates
Encysted larvae is present in striated muscles (nurse cell) such as the deltoid, gastrocnemius, soleus, and gluteus maximus
Trichinella spiralis
Trichinella spiralis
infective stage:
diagnostic stage:
encysted larva (muscle tissue) encysted larva (muscle tissue)
Adult male has 2 large fleshy conical papillae and a single testis
Trichinella spiralis
Enterobius vermicularis
sources of infection
contact borne
Female worm has an interwinding and flesh-colored uterus.
Angiostrongylus cantonensis
Mystery worm
Capillaria philippinensis
Female worm has a “barber’s pole”. This is an intestine filled with blood.
Angiostrongylus cantonensis
causes vulvovaginitis
Enterobius vermicularis
its diagnostic tests are:
Cellulose tape swab
Swellengrebel technique
Enterobius vermicularis
Seatworm
Enterobius vermicularis
Female worm has a club shaped uterus filled with developing eggs and larva
Trichinella spiralis
Male worm has a chitinized spicule and long spicule sheath
Capillaria philippinensis
Adult male has a esophageal bulb. Also, give the location
Enterobius vermicularis
anterior end
Female and male worms have an esophagus with think narrow tube surrounded with stichocytes
Trichinella spiralis
Female worm is larviparous and has a single ovary
Trichinella spiralis
Capillaria philippinensis
final host
man or other vertebrae
Angiostrongylus cantonensis
sources of infection:
food borne
zoonotic
Angiostrongylus cantonensis
final hosts:
Rattus norvegicus
Rattus rattus rattus
Adult male = minute worm
Trichinella spiralis
Enterobius vermicularis
final host:
man
Society worm
Enterobius vermicularis
Trash/garbage worm
Trichinella spiralis
its diagnostic tests are:
Bentonite Flocculation Test
Bachman Intradermal Test
Trichinella spiralis
causes borborygmi
Capillaria philippinensis
Capillaria philippinensis
intermediate host
glass fish
Capillaria philippinensis
MOT
ingestion
Pinworm
Enterobius vermicularis
Trichinella spiralis
habitat:
small intestine
Enterobius vermicularis
infective stage:
diagnostic stage:
embryonated ova
ova
Enterobius vermicularis
habitat:
large intestine
Male worm has a bean shaped copulatory bursa.
Angiostrongylus cantonensis
Ova is striated, flattened bipolar plugs, and guitar or peanut shaped
Capillaria philippinensis
Angiostrongylus cantonensis
intermediate host:
Achatina fulica
causes Nocturnal pruritus ani
Enterobius vermicularis
Trichinella spiralis
accidental host:
man
Adult male has a blunt & curved posterior.
Enterobius vermicularis
causes periorbital swelling and edema generalized weakness
Trichinella spiralis
Angiostrongylus cantonensis
habitat:
rat’s lungs
Trichinella spiralis
MOT:
ingestion
its diagnostic tests are:
Muscle tissue biopsy
Beck’s Xenodiagnosis
Trichinella spiralis
causes micro-ulceration
Capillaria philippinensis
Trichina worm
Trichinella spiralis
its diagnostic tests are:
Petrolatum Coated Swab
NIH method
Gram technique
Enterobius vermicularis
Capillaria philippinensis
sources of infection
food borne
Encysted larvae becomes calcified when there is no host
Trichinella spiralis
Capillaria philippinensis
infective stage:
diagnostic stage:
larva (intermediate host)
ova (stool)
Muscle worm
Trichinella spiralis
Rat lung worm
Angiostrongylus cantonensis
Atypical female is viviparous& larvivapous
Capillaria philippinensis
In Bentonite Flocculation test, these antibodies detect current infection and previous infection respectively
IgM
IgG
Angiostrongylus cantonensis
MOT:
ingestion
Trichinella spiralis
sources of infection:
food borne
zoonotic
Adult female has 8-13mm long and pointed tail
Enterobius vermicularis
Angiostrongylus cantonensis
accidental host:
paratenic host:
man
crab, prawn
Pudoc worm
Capillaria philippinensis
Capillaria philippinensis
habitat
small intestine
Angiostrongylus cantonensis infective stage (2):
man: L3 filariform
rat: L1 rhabditiform
Enterobius vermicularis
MOT:
ingestion & inhalation
Egg is lopsided/convex/D-shaped
Enterobius vermicularis
Its larva is a small knob near tip of tail. Name parasite and larval phase.
Angiostrongylus cantonensis
L1 rhabditiform
Its larva has an expanded knob-like tips. Name the parasite and larval phase.
Angiostrongylus cantonensis
L3 filariform