Parasites Flashcards
Accidental or incidental parasite
Fasciola
Paratenic host
Trichinella
Facultative parasite
Strongyloides
Skin penetration
Stronglyloides
Schistosoma
Ancylostoma
Necator
Congenitally transmitted parasite
Toxoplasmosis
Inhaled parasite
Enterobius
Treatment for amoeba cyst carrier
Diloxanide furoate
GI ulcers in amebiasis
Flask-shaped
Amebiasis: mediates adherence
Lecitin
Amebiasis: for penetration
Amebapores
Amebiasis: for cytopathic effect
Cysteine proteases
Backpacker’s diarrhea
Giardia lamblia
Drug of choice: Cryptosporidum
Nitrazoxanide
Pathogenic protozoan with no cyst form
Trichomonas vaginalis
Diagnostic stage of toxoplasmosis
Trophozoite (bradyzoite)
Preferred diagnostic test for toxoplasmosis
IgM
Treatment of toxoplasmosis
Sulfadiazine plus pyrimethamine
Transmission of Chagas’ disease
Reduviid bug (Triatoma)
Most frequently and severly affected tissue in Chagas’ disease
Cardiac muscle
Chagas’ disease: unilateral periorbital edema
Romaña sign
Treatment of Chagas’ disesase
Nifurtimox
Transmission of African sleeping sickness
Tsetse fly (Glossina)
African sleeping sickness: frequency
Every two weeks
More severe: Rhodesian or Gambian?
Rhodesian
African sleeping sickness: posterior cervical lymphadenopathy
Winterbottom’s sign
African sleeping sickness: hyperesthesia
Kerandel’s sign
African sleeping sickness: CSF plasma cells with cytoplasmic immunoglobulin globules
Mott cells
Most common cause of red tide
Pyrodinium bahamense var compresum
Shellfish poisoning: paralytic
Saxitoxin
Shellfish poisoning: neurotoxin
Brevetoxin
Shellfish poisoning: diarrhetic
Okadaic acid
Shellfish poisoning: amnesic
Domoic acid
Granulomatous amebic encephalitis
Acanthamoeba castellani
Amebic keratitis
Acanthamoeba castellani
Primary amebic meningoencephalitis
Naegleria fowleri
Only ciliated protozan to cause human disease
Balantidum coli
Ulcers in balantidial dysentry
Round-based, wide-necked
Maltese cross
Babes microti
Transmission of Leishmansis
Sandfly (Phelbotomus)
Drug of choice for leishamniasis
Sodium stibogluconate
More uterine branch: solium or saginata?
saginata
Infective stage of Taenia
Cysticerci
Eggs (Taenia solium)
Taenia: intestinal obstruction
saginata