A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 39/12 (2006.01) A61K 35/76 (2006.01) A61P 31/12 (2006.01) A61P 37/04 (2006.01) C12N 7/01 (2006.01) C12N 7/02 (2006.01) C12N 7/08 (2006.01)
Patent
CA 2278824
The present invention is concerned with a vaccine which is capable of protecting poultry against Infectious Bursitis Infections, characterized in that it contains an Infectious Bursitis virus which has the combined properties of upon administration to a chicken causing a reduction in the size of the bursal size, expressed as bursa/body weight ratio, of less than 55 % and the capability to protect poultry having an ELISA antibody titer of at least about 500 and with viruses having the above characteristics.
La présente invention traite d'un vaccin qui permet de protéger la volaille contre les infections par la bursite infectieuse. Ce vaccin contient un virus de bursite infectieuse qui présente plusieurs propriétés combinées. Lors de son administration à un poulet, il provoque une réduction de la taille des bourses qui; exprimée en rapport de poids des bourses/corps; est inférieure à 55 %. Il permet de protéger la volaille possédant un niveau d'anticorps, dosés selon la technique Elisa, d'au moins 500 . L'invention traite également de virus possédant les caractéristiques susmentionnées.
Davelaar Frans Gerrit
Pitstra Bernarda Johanna
Van Wiltenburg Nico
Dimminaco Ag
Ridout & Maybee Llp
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