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The live
vaccine, AnavacŪ is available through Poultry Health Laboratories, in Davis,
California. It is shipped on dry ice or in liquid nitrogen. It costs $3.00
per dose plus shipping. The killed vaccine is available through California
Woolgrowers Association. It costs $6.50 per dose and is shipped via normal
refrigeration. The protection is only against the anemia that causes disease signs. Cattle immunized with the tick cell culture-derived A. marginale had a significantly lower percent reduction in the PCV after challenge as compared with the controls. They did not display clinical anaplasmosis. The cell culture-derived A. marginale shows promise for use as an antigen in the development of a new killed commercial vaccine for anaplasmosis. |