Helminths Flashcards
Pinworm is caused by
Enterobius
Worm which lays eggs in the anus
Enterobious
Transmission of enterobius
Fecal Oral route (Self-infection)
Diagnosis of enterobius
Scotch tape test
Treatment of Enterobius
Pyrantel pamoate / Albendazole
Hookworms are
Ancyclostoma duodenale
Necator americanus
Hookworm mode of transmission
Penetrate skin of soles of feet, then ascend to lungs, cough up, swallowed, matures in small intestine
Manifestations of hookworm infectiion
Iron deficiency anemia
Diagnosis of hookworm
Stool test, look for eggs
Treatment of Hookworm
Pyrantel pamoate
Transmission of ascaris
Ingestion of eggs in contaminated food, migrates to lungs, then mature, swallowed again
Clinical manifestations of Ascariasis
Respiratory symptoms
Malnutrition
Intestinal obstruction
Diagnosis of ascariasis
Eggs in stool
Treatment of Ascariasis
Albendazole
Transmission of Strongyloides
Penetrates soles of feet –> lungs –> swallowed in GI tract
Nematode capable of autoinfection
Strongyloides - eggs rhatch and repenetrate inside
Diagnosis of strongyloides
Stool test - LARVAE. not eggs
Treatment of Strongyloides
Albendazole, Ivermectin
Trichinella spiralis is found in
Undercooked meat
Symptoms of trichinella infection
Periorbital edema, vomiting, fever, sweating, myalgia
Transmission of Trichinella
Ingestion –> larvbae enter muscle and form cysts within striated muscle
Trearment of Trichinella
Albendazole
Dracunculus medinensis infection mode
Drinking infected water with copepods containing larvae
Intermediate host of dracunculius
Copepods
Manifestaition of dracunculus
Painful skin ulcer with worm coming out
Treatment of dracunculus
Metronidazole
Manual extraction of worm bny wrapping around stick
Onchocerca volvulus intermediate host
Black fly
Manifestation of Onchocerca volvulus
Hyperpigmented and hypopigmented papules with onchodermatitis, blindness
River blindness is caused by
Onchocerca volvulus
Stage of Onchocerca volvulus larva which circulates in the body
Microfilaria