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By J B McFerran; M S McNulty; Commission of the European Communities. Coordination of Agricultural Research

ISBN-10: 0898388090

ISBN-13: 9780898388091

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Extra resources for Acute virus infections of poultry : a seminar in the CEC Agricultural Research Programme, held in Brussels, June 13-14, 1985

Sample text

Shown asymmetrical cross relationships. Other isolates have Some variation has also been reported in the structural polypeptide profiles of P}W-2 isolates (Alexander and Collins, 1981). To date none of the variations between isolates of P}W-2 viruses have been related to epidemiological or biological properties. Variations also exist between P}W-3 viruses. In general terms serological tests have indicated P}N-3 viruses isolated from either turkeys or psittacineshave shown closer relationships with viruses from the same source (Alexander et at, 1982).

5 ~l of two inactivated influenza vaccines prepared using the virulent A/tern/S. Africa/6l (H5N2) strain were injected subcutaneously into five week old SPF chicks. HI antibody appeared faster but also waned faster after vaccination with vaccine A, in aqueous solution, than with the oil emulsion based vaccine B. This was associated with a slightly better protection against challenge with the virulent live virus by vaccine A 3 weeks after vaccination. Challenge was not followed by a significant increase of HI tines or appearance of precipitating antibody.

J. gen. , 22, 35-41. 45 EXPERIMENTAL VACCINATION OF CHICKENS AGAINST AVIAN INFLUENZA SUBTIPE H5 WITH AN INACTIVATED OIL EMULSION VACCINE B. G. O. 5 ~l of two inactivated influenza vaccines prepared using the virulent A/tern/S. Africa/6l (H5N2) strain were injected subcutaneously into five week old SPF chicks. HI antibody appeared faster but also waned faster after vaccination with vaccine A, in aqueous solution, than with the oil emulsion based vaccine B. This was associated with a slightly better protection against challenge with the virulent live virus by vaccine A 3 weeks after vaccination.

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Acute virus infections of poultry : a seminar in the CEC Agricultural Research Programme, held in Brussels, June 13-14, 1985 by J B McFerran; M S McNulty; Commission of the European Communities. Coordination of Agricultural Research


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