Changes

'''Chemoprophylaxis'''  

'''Chemoprophylaxis'''  

*There are several control objectives

There are several control objectives

**To prevent fluke eggs being dropped onto snail habitats

*To prevent fluke eggs being dropped onto snail habitats

***This is done by treating sheep/cattle with an adulticidal drug in the '''late winter/early spring'''

**This is done by treating sheep/cattle with an adulticidal drug in the '''late winter/early spring'''

**To protect animals grazing pasture known to be contaminated with metacercariae. The choice of drug, time of treatment and dosing interval will depend on

*To protect animals grazing pasture known to be contaminated with metacercariae. The choice of drug, time of treatment and dosing interval will depend on

#Whether you are trying to prevent acute or chronic disease

#Whether you are trying to prevent acute or chronic disease

#The likely intensity of challenge (local knowledge/fluke forecast)

#The likely intensity of challenge (local knowledge/fluke forecast)