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Development of an Inactive Vaccine for Riemerella Anatipestifer
News source: National Veterinary Research Institute, Taiwan ROC
For further information: steven@mail.nvri.gov.tw, 2003-06-01

Bacterin Able to Infect Both Geese and Ducks

To develop a Riemerella anatipestifer (RA) bacterin, the serotype 2 RA, a predominating strain in Taiwan based on previous investigations, was chosen as a seed strain. Previous reports indicate that RA isolated from geese has the ability to infect only geese. In this study, however, results show that RA could infect both ducks and geese.

Development of Inactive Monovalent Vaccine

An inactive monovalent vaccine was developed, composed of oil-in-water adjuvant and a master seed strain (YL9902-D2) isolated from YiLan Prefecture in 1999. The potency test of the vaccine on ducks aged 6 weeks was 75%. This vaccine did not cause any adverse effect on ducks in the safety test.

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