Lesson 5 Flashcards
The protozoal infection that involves the colon
Amoebiasis
It may spread to soft tissues, most commonly to liver and lungs by lymphatic dissemination
Amoebiasis
Where amoebiasis commonly spread at?
Liver and lungs
Etiologic agent of amoebiasis
Entamoeba histolytica
Amoebiasis is common in what climate
Warm climate
2 developmental stages of entamoeba histolytica
Trophozoite / vegetative form
Cyst
Facultative parasites that may invade the tissues or may be found in parasitized tissues and liquid colonic contents
Trophozoites / vegetative form
It is passed out with formed or semi-formed stools and is resistant to environmental conditions
Cyst
The infective stage in the life cycle of entamoeba histolytica
Cyst
The cyst is rapidly killed by _____
Putrefaction
Dessication
Temperatures below 5 and 40 degrees
Called the process of decation
Putrefaction
Drying up
Dessication
The source of infection of Amoebiasis
Human excreta
Period of communicability of E. Histolytica
Entire duration of the illness
E. Histolytica incubation period: sub-acute and chronic infection
Several months
E. Histolytica incubation period: severe infection
3 days
E. Histolytica incubation period: average
3 to 4 weeks
Mode of transmission for e. histolytica
Person to person through fecal-oral transmission
Direct contact through sexual contact
Another term for amoebiasis
Amoeba dysentery
Slight diarrhea, with periods of constipations and tenesmus
Acute amoebic dysentery