Cestodes

Rat tapeworm

Hymenolepis diminuta

pseudophyllidea

Diphyllobothrium latum

Broad fish tapeworm

Diphyllobothrium latum

Location: Intestinal tract

Infective stage: Diphyllobothrium latum

PlerocercoidLo

Diagnostic stage: ova & proglottids in stool

1. Diphyllobothrium latum

2. Taenia saginata

Location: Small Intestine

1. Taenia saginata

2. Taenia solium

3. Hymenolepis diminuta

Beef tapeworm/Longest tapeworm

Taenia saginata

Pork tapeworm/Hooked tapeworm

Taenia solium

Infective stage: Taenia saginata

Cysticercus bovis (larval stage)

DH: man

1. Diphyllobothrium latum

2. Taenia saginata

3. Taenia solium

4. Hymenolepis nana

IH: Diphyllobothrium latum

1st: Copepods (coracidium)

2nd: Freshwater fish (plerocerocercoid)

MOT: Diphyllobothrium latum

ingestion of uncooked/raw fish

commonly mistaken as Paragonimous westermani ova

Diphyllobothrium latum

MOT: Taenia saginata

ingestion of measly beef with infective larva

IH: Taenia saginata

cows, cattle, camels

Diagnostic stage: ova in stool

1. Taenia solium

2. Hymenolepis nana

3. Hymenolepis diminuta

MOT: Taenia solium

ingestion of measly pork infected

Infective stage: Taenia solium

cysticercus cellulosae & embryonated egg

IH: Taenia solium

pork

Dwarf tapeword/Smallest tapeworm

Hymenolepis nana

IS: Hymenolepis nana

cysticercoid larvae in grain beetle

embryonated egg

MOT: dwarf tapeworm

ingestion of grain products infected by insects

IH: hymenolepis nana

fleas, beetles, rats, or house mice

Autoreinfection

Hymenolepis nana

Location: ileum of small intestine

Hymenolepis nana

MOT: Hymenolepis diminuta

ingestion of rat/infected insects

IH: Rat tapeworm

rats or house mice

IS: Hymenolepis diminuta

cysticercus larvae

dog/cat tapeworm, double-pored tapeworm, pumpkin seed taepworm

Dipyllidium caninum

MOT: Dipyllidium caninum

ingestion of infected fleas

DH: dog

Dipyllidium caninum

AH: Human

1. Dipyllidium caninum

2. Echinococcus granulosus (dead-end host)

IH: Dipyllidium caninum

Dog louse, dog flea, cat flea

DS: Dipyllidium caninum

Eggs packets

Gravid proglottids in stool

IS: Dipyllidium caninum

Cysticercoid

Hydatid worm/ Dog taepworm

Echinococcus granulosus

Location: subcutaneous

Echinococcus granulosus

IS: Echinococcus granulosus

embryionated eggs in dog’s feces

DS: Echonococcus granulosus

hydatid cysts in lung and liver

DH: Echinococcus granulosus

dog or wild canines

shortest tapeworm to infect man

Echinococcus granulosus

IH: Echinococcus granulosus

sheep, cattle, goats, pigs

commonly mistaken for Taenia spp.

Echinococcus granulosus