Vir 111


Freeze Dried Live Vaccine against – Infectious Bronchitis (IB) – H120 strain (Mass. Type) – SPF origin

Infectious Bronchitis

Infectious bronchitis (IB) is caused by a specific virus known as infectious bronchitis virus (IBV), a member of the Coronavirus genus within the Coronaviridae. Infectious bronchitis is an acute and highly contagious respiratory disease of chickens. It has worldwide distribution. Several different serotypes of IB virus are known to exist. Although it does indeed cause respiratory disease it also replicates at many non-respiratory epithelial surface, where it may cause pathology e.g. kidney, gonads. Strains of the virus vary in the extent to which they cause pathology in non-respiratory organs.To control the disease live and inactivated vaccines of various serotypes are in use.

Additional information

Composition / Contents

Each dose contains live attenuated Infectious Bronchitis attenuated virus, H120 strain, at least 10 3.5EID50.


Active immunization of chickens against Infectious Bronchitis.

Indications for use

Use by instructions of a veterinarian.
Use immediately after reconstitution with antiseptic or disinfectant free drinking water.

Administration and dosage

• Prepare for each 1,000 doses 100-300 ml of non chlorinated water.
• Add the reconstituted vaccine to the adequate volume of spraying water, immediately prior to use, and mix well.
• The ventilation system of the poultry house should be inoperative during the spray/aerosol administration.
• Direct the stream from the sprayer over the heads of the birds.
• Droplets of 100-300μm diameter are ideal as they facilitate even coverage of birds.
Drinking water:
• Make sure that drinking water is free of any traces of disinfectants.
• Deprive the birds of drinking water two hours before vaccination.
• Prepare adequate volume of drinking water to be consumed within one to two hours.
• Protect the dissolved vaccine from chlorine by adding BIOVAC'S Blue Neutrachlor® (following the instructions) or skim milk powder (50g/20L) or skim milk (0.5L/20L) to drinking water to be consumed within one to two hours.
• Stir well after mixing and allow solution to stand for 20 min. before adding the vaccine.
• Mix well the reconstituted vaccine in the final volume of disinfectant-free drinking water.
• Let the birds consume all the vaccine-water volume before renewing water supply.
Ocular route:
The vaccine should be dissolved in physiological saline solution (usually 40 ml per 1,000 doses) and administered by means of a standardized dropper. Administer one drop (0.04ml) of vaccine into the open eye of each bird.


• Vaccinate healthy birds only.
• Use entire contents of the vial when first opened.
• Destroy unused contents and decontaminate empty vials before discarding them.
• Keep vaccination records including vaccine batch number.

Withdrawal period



Store at 2ºC-8ºC, protected from direct sunlight.


Each box contains 10 or 20 vials of 1,000, 2,500 or 5,000 doses


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