CCDM TOPIC SCHISTOSOMIASIS Flashcards Preview

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Flashcards in CCDM TOPIC SCHISTOSOMIASIS Deck (7):
1

Identification

A blood fluke (trematode) infection with adult
male and female worms living within mesenteric or vesical veins of the host over a life span of many years.

2

Schistosoma mansoni and S. japonicum signs and symptoms:

diarrhea, abdominal pain and hepatosplenomegaly. S. japonicum can also cause CNS disease, with
Jacksonian seizures.

3

How is Definitive diagnosis of schistosomiasis achieved?

Egg biopsy specimens, stool by direct smear, or in urine.

4

Mode of transmission:

Mode of transmission—Infection is acquired from water containing free-swimming larval forms (cercariae) that have developed in snails.

5

Incubation period:

primary infections 2–6 weeks after exposure

6

Period of communicability

Not communicable from person to person; may spread the infection by discharging eggs in urine and/or feces into bodies of water for as long as they excrete eggs; it is common for human infections with S. mansoni and
S. haematobium to last in excess of 10 years

7

Specific treatment:

Praziquantel oral dose 40 mg/kg.

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