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Parasitic Gastroenteritis (view source)
Revision as of 13:40, 12 January 2009
, 13:40, 12 January 2009no edit summary
*Nematodes may survive inside the host for long periods of time, not as normally developing adult worms (that would be expelled within a few weeks), but as larval worms that have become temporarily arrested in their development and may remain inside the host 'asleep' for many months
*Nematodes may survive inside the host for long periods of time, not as normally developing adult worms (that would be expelled within a few weeks), but as larval worms that have become temporarily arrested in their development and may remain inside the host 'asleep' for many months
====Arrested larval development====(synonyms: inhibited development, hypobiosis, diapause)
==== Arrested larval development ====(synonyms: inhibited development, hypobiosis, diapause)
*Long lifespan of several months (c.f. adult worms; a few weeks only)
*Long lifespan of several months (c.f. adult worms; a few weeks only)
*Larvae become arrested at an early stage in their development e.g. ''Ostertagia'' as EL4 (i.e. early fourth stage), equine cyathostomes as L3
*Larvae become arrested at an early stage in their development e.g. ''Ostertagia'' as EL4 (i.e. early fourth stage), equine cyathostomes as L3