Helminth Infections; Parasitic worms, roundworms

Helminth

Macroscopic, multicellular, Eukaryotic

Life cycle stages: Eggs, larvae, adult worms

Nematodes(roundworms)

Cestodes(Tapeworms)FLATWORMS

Trematodes(flukes) FLATWORMS

Nematodes (Roundworms)

Ascariasis

Filariasis

Ascariasis

Ascaris Lumbricoides

Intestinal obstruction, abdominal discomfort, growth impairement in children

Poor hygine, sanitation, unwashed fruit/veg

Fecal-oral, ingest cont food/water

Filariasis

Wuchereria Bancrofti

Severe lymphedema of the limbs due to worms lodging in lympathic vessels

ELEPHANTIASIS- fibrosis of skin, swelling of lower limbs and thickening of skin

Bite of infected MOSQUITOES in the genera

CULEX

ANOPHELES

AEDES

Sanitation, residing close to STAGNANT WATER BODIES,

PONDS, MARSHES

Parasites are

organisms that live on or in living organisms at whose expense they gain advantage

Accidental host

living org that serve as a host in a particular parasites life cycle but NOT a usual host in that life cycle

Facultative

can be parasitic, does NOT have to life as a parasite, capable of living an independent life, apart from host

Obligate

no choice

to survive it must be parasite, most in humans