cercarial การใช้

• Excretory bladders are located at posterior end of the cercarial body.
• The miracidia go through several stages in the mollusc host, eventually emerging as motile cercarial larvae.
• If necessary to enter potentially infected water, cercarial repellants and cercaricidal ointments can be applied to the skin before entering the water.
• The clinical manifestation of such infection is known as an neglected allergic disease called cercarial dermatitis ( or swimmer's itch ).
• "Indoplanorbis exustus " has been implicated in outbeaks of cercarial dermatitis in human populations in India, Laos, Malaysia and Thailand.
• The condition involves the cercarial dermatitis to penetrate the skin, while dying in the epidermis, causing the itching sensation ( Blankespoor et al ., 2004 ).
• Cercarial dermatitis results from the cutaneous allergic reaction in people exposed to larval schistosomes ( cercariae ) shed by infected snails into freshwater bodies such as lakes, ponds, and paddy fields.
• Test sensitivity and specificity vary widely among the many tests reported for the serologic diagnosis of schistosomiasis and are dependent on both the type of antigen preparations used ( crude, purified, adult worm, egg, cercarial ) and the test procedure.
• "' Swimmer s itch "'or "'cercarial dermatitis "', is a short-term immune reaction occurring in the Incidence may be on the rise, although this may also be attributed to better monitoring.