Description
Nobilis® Corvac is an inactivated vaccine for the immunisation of chickens against infectious Coryza. The vaccine contains inactivated bacteria of serotypes A, B and C of Haemophilus paragallinarum, the causative agents of infectious Coryza. As adjuvant water in oil is used.

Composition
Active components:

• Inactivated Haemophilus paragallinarum strain 083 (serotype A).
• Inactivated Haemophilus paragallinarum strain Spross (serotype B).
• Inactivated Haemophilus paragallinarum strain H-18 (serotype C).

Formulation
Water-in-oil emulsion.

Indications
Protection against Haemophilus paragallinarum infections in chickens.

Vaccination
Chickens can be vaccinated from 2 weeks of age onwards. To achieve a protection in layers and breeders up to 60 weeks of age, two vaccinations are required. The first dose is ussually administered at the age of 5 to 10 weeks and the repeated dose a few weeks before the onset of egg production.

The interval between the two vaccinations has to be at least six weeks.

Dosage
0.5 ml per bird.

Method of administration
Subcutaneously in the lower part of the back of the neck.

Withholding period
None. 

Presentation
500 ml (1000 doses) bottles.

Storage
Store between 2-8°C and avoid freezing.

Contra-indications
When used according instructions: None. 

Further information
Dispose of empty or part-used vials in accordance with local regulations.

Precautions

• Vaccinate healthy birds only. 
• Before use allow the vaccine to reach room temperature (20-25°C). 
• Shake the bottle well before use. 
• Use sterile injection equipment. 
• Use the entire contents when first opened. 
• Opened vials should be used within three hours. 
• Do not mix with other vaccines. 
• Should a vaccinator inject himself or a bystander by accident, a local reaction may occur. It is recommended that the advice of a doctor is sought, taking care to inform the doctor that the vaccine is an oil emulsion.