<p>The present invention provides vaccines containing inactivated avian infectious bronchitis virus VLO 10110/AVI/9 and/or an inactivated virus strain serologically related thereto the immune response to which in birds is enhanced by "priming" with a live heterologous strain of avian infectious bronchitis virus. Immunisation of poultry against infectious bronchitis using such a vaccine does not require initial vaccination or "priming" of the poultry with a live vaccine of the same strain, thus enabling "priming" to be effected using a well-tried conventional live heterologous vaccine, for example a live vaccine to an avian infectious bronchitis virus of the Massachusetts serotype.</p>
申请公布号
DE3582422(D1)
申请公布日期
1991.05.08
申请号
DE19853582422
申请日期
1985.12.10
申请人
PITMAN-MOORE, INC., NORTHBROOK, ILL., US
发明人
BOX, PHILLIP GEORGE MOUNT VIEW PYRTON, OXFORDSHIRE OX9 5AP, GB;HOLMES, HARVEY CHARLES, LONDON NW7 3QE, GB