Emergence of Opisthorchis viverrini cercariae from naturally infected Bithynia (Digoniostoma) siamensis goniomphalos.
Southeast Asian J Trop Med Public Health
;
2005 ; 36 Suppl 4(): 189-91
Article
in English
| IMSEAR
| ID: sea-32358
ABSTRACT
Under natural conditions, the emergence of Opisthorchis viverrini cercariae from naturally infected Bithynia (Digoniostoma) siamensis goniomphalos showed diurnal periodicity, peaking between 800-1000 AM. The cercariae did not emerge during darkness, but low-intensity light could induce a release. Cercariae shedded from each field infected B.(D.) s. goniomphalos was recorded daily. The maximum output from one snail was 1,728 cercariae in a day. The total cercarial output from all five infected snails was 56,555 and the maximum of total cercariae shed from one snail was 27,692. The field-infected B. (D.) s. goniomphalos could survive for 70 days after the snails were collected.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Opisthorchis
/
Parasite Egg Count
/
Snails
/
Survival
/
Time Factors
/
Circadian Rhythm
/
Disease Vectors
/
Ecology
/
Fasciola hepatica
/
Host-Parasite Interactions
Language:
English
Journal:
Southeast Asian J Trop Med Public Health
Year:
2005
Type:
Article
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