PARASITOLOY OWN

• Ascaris lumbricoides

  Common name

  MOT

  Infective Stage

  Diagnostic stage

  roundworm

  ingestion

  fully embryonate egg

  ova, adult
• trilobate lips

  lumbricoides
• resembles pencil lead in thickness

  female lumbricoides
• Vermicularis

  Common name

  MOT

  Infective

  Diagnostic

  pinworm

  ingestion

  fully embryonated egg

  ova and adult
• T. trichura

  Common name

  MOT

  Infective stage

  Diagnostic stage

  whipworm

  ingestion

  fully embryonated egg

  adult
• t. trichura

  Common name

  MOT

  Infective stage

  Diagnostic stage

  whipworm

  ingestion

  fully embryonated egg

  ova
• colorless and whiplike


  anterior end
• pinkish-gray resemble a whip handle


  posterior end
• 3rd most common helminth

  tichiura
• found primarily in warm climates

  trichiura
• pudoc worm

  phillipinensis
• gurgling sound

  borborygmi (philippinensis)
• H. bipartita

  ipon
• Hookworms

  MOT

  infective stage

  diagnositc stage

  skin penetration

  filariform lava

  egg
• Nector americans

  shape of S
• Americanus

  equipped with amiphidial gland

  tail contains a copulatory bursa and copulatory spicule
• Duodenale

  ● Common name: Old world hookworm

  ● Diseases: Ancylostomiasis and miners anemia

  ● Characteristic shape of adult is letter C

  ● Adult worm has a 2 pairs of ventral teeth

  ● Has a pair of copulatory spicule which is bristle like
• Braziliense

  • Common name: Cat hookworm
  • Disease: Cutaneous larva migrans / creeping eruption
  • Adults have a pair of teeth and a pair of inconspicuous median teeth
  • Copulatory bursa is broad and long with short lateralrays
• Caninum

  • Common name: Dog hookworm
  • Disease caused: Cutaneous larva migrans/creepingeruption and eosinophilic enteritis
  • Adult worm has 3 pairs of ventral teeth
  • Cephalic amphidial gland
• Strongyloides stercolaris

  • Common name: Threadworm
  • Mode of transmission: Skin penetration
  • Infective stage: Filariform larva
  • Diagnostic stage: Rhabditiform larva
• Spiralis

  Common name: Muscle worm/Trichina worm

  Mode of transmission: Ingestion of encysted larva

  Infective stage: Encysted larva

  Diagnositc stage: Larva
• Coiled, surrounded by nursing cells

  Spiralis
• Body of the worm is transparent with fine striated cuticle

  Stercolaris
• chinese lantern shape

  stercolaris
• dog heatwrom

  dirofilaria immitis
• guinea worm

  dracunculus medinensis
• barber pole appearance

  cantonensis
• ratworm

  cantonensis
• specimen for cantonensis

  CSF
• Anisakis

  • 1st IH: Copepods (cyclops)
  • 2nd IH: Small fish (ingest copepods)
  • 3rd IH: Big fish
  • FH/DH: Humans, marine mammals
• present only in heterophyes

  genital sucker
• prevention of anisakis

  cook food thoroughly
• Crab

  westermani
• snail

  ilocanum
• plant

  faschiola
• fish

  heterophyes

  clonorchis

  opisthrorchis
• sheep's liver fluke

  hepatica
• cat liver fluck

  felineus
• egg of felineus

  • With operculumthat sits on thethickened rimand a minute aboperculum is also present
  • Yellowish-brown,ovoid and is smaller than Clonorchis sinensis ova
• most important fluke of the man

  sinensis