Muellerius
Revision as of 22:29, 21 April 2010 by Bara (talk | contribs) (Created page with '=='''''Muellerius '''''== *Common, although not major pathogens; little economic importance. === Life-Cycles === **Indirect life-cycle involving mollusc intermediate hosts **L1 …')
Muellerius
- Common, although not major pathogens; little economic importance.
Life-Cycles
- Indirect life-cycle involving mollusc intermediate hosts
- L1 passed in faeces, penetrate foot of mollusc, develop to L3 in 2-3 weeks
- Infected mollusc ingested with grass
- L3 released by digestion and travel to lungs by lymphatic route
- Adults found in alveoli/parenchyma (Muellerius) or small bronchioles (Protostrongylus)
- Prepatent period 6-10 weeks (Muellerius), 5-6 weeks (Protostrongylus)
Epidemiology
- High prevalence because of wide range of intermediate hosts, prolonged survival of larvae in faeces, long periods of patency (>2 years) and poor host immunity