Nobilis® I.B. Vaccine, Strain H-120

Description :
Live, freeze-dried vaccine against Infectious Bronchitis in chickens. Each dose of vaccine contains at least 10³ EID₅₀0 of the strain H-120. The vaccine pellet contains stabilizers and gentamicin has been added during the production process.

Indication :
Normal and emergency vaccination of broilers, future layers and breeding stock against the Massachusetts type of Infectious Bronchitis.

Vaccination Programme :

I. Future layers and breeding stock Normal vaccination

H-120 at 1-3 weeks , H-120 at +- 8 weeks of age, course spray or oculo/nasal, drinking water.

H-52 at 16 weeks of age, drinking water, oculo/nasal or coarse spray. The H52 vaccination at 16 weeks of age can be replaced by the use of an inactivated vaccine against IB to achieve a long lasting protection throughout the laying period.

In case the inactivated IB vaccine is not used or when it is necessary to vaccinate birds in lay the H-120 strain should be used; revaccination every 3
months.

II. Broilers

H-120 at 1 to 3 weeks of age, drinking water or oculo/nasal or coarse spray.

Immunity and Vaccination Reaction :
Duration and intensity of the vaccination reaction and the establishment of a solid immunity are dependent on the possible presence of maternal antibodies and in general on the health and condition of the birds. Hygiene and management are also important in the post vaccination period.

The reaction after primary vaccination is mild. Slight respiratory disturbances may occur 4 to 7 days after vaccination. These symptoms will usually disappear within two weeks.

Immunity will set in one week after vaccination and will last for several weeks.

Emergency vaccination in birds in lay may provoke a fall in egg production, which will usually soon be restored.

Presentations :
Vials of 1000, 2500 doses of vaccine, in boxes of 10 vials