Life cycle

LIFE CYCLE

  • Eggs are passed in faeces of host. Development and bionomics of larvae are similar to strongyle spp under optimal condition infective stage is reached in 5 days.
  • Infection of definitive host by skin penetration (by L3) and also by oral ingestion. Following skin penetration, larvae reaches the lungs via blood stream.
  • In the lungs L3 moult to become L4, then the L4 migrate up from trachea to pharynx and finally swallowed, reach the intestine .In the intestine L4 moult to become L5.
  • Prepatent period is 30 to 56 days.
Last modified: Friday, 23 September 2011, 10:44 AM