Page 947 - Veterinary Immunology, 10th Edition

product is now commercially available.
VetBooks.ir These are especially effective against single high doses but are less
Cattle mount protective responses against Fasciola infections.

efficient against low-level trickle infections of the type likely to be

encountered in the field. Animals may be protected against
fascioliasis by the use of defined parasite antigens, such as fatty
acid-binding protein, glutathione S-transferase, recombinant
cathepsin L, and liver fluke hemoglobin.

In general, helminth vaccines are not yet widely employed. There
has been reluctance on the part of farmers to change established
control procedures, especially when the major financial burden of
these infestations is often borne by others.

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