Vaccination dosage
Calves up to 6 months of age: 2 ml
Adult cattle: 5 ml

Route and method of administration
Subcutaneous injection preferably in the loose skin on the side of the neck, observing aseptic precautions.

Primary vaccination course
Where diagnosis of salmonellosis caused by S. dublin and/or S. typhimurium has been confirmed, all at risk adult cattle, including lactating cows, dry cows, heifers, barren cows and in-contact bulls (but excluding any with overt clinical signs of salmonellosis), should receive two 5 ml injections separated by an interval of 21 days.

For pregnant cows, this primary vaccination course can be given irrespective of the reproductive status. Any pregnant cows that have not calved within 8 weeks of the second dose of vaccine should receive a further 5 ml dose of Bovilis Bovivac S 3-4 weeks pre-calving.

Healthy calves from approximately 3 weeks of age may also be given a primary vaccination course. Calves should be given two 2 ml injections separated by an interval of 14 to 21 days.
All stock showing overt clinical signs of salmonellosis at the time of the initial vaccination programme should receive appropriate treatment and be fully vaccinated once they have recovered. Any unvaccinated stock must be managed separately to vaccinated stock, with no contact between the groups. Hygiene precautions must be instituted, where possible, to prevent transfer of infection from one group to another.

Re-vaccination scheme
All cattle vaccinated with the primary vaccination course of Bovilis Bovivac S should receive a 5 ml injection at least two weeks prior to each period of risk or at intervals of not more than 12 months thereafter.
As part of an overall herd management programme, for pregnant cattle, it is advised that for each subsequent pregnancy, in order to maintain a sufficient level of active immunisation to reduce S. dublin and S. typhimurium infections under field conditions, a single injection of 5 ml should be administered approximately 3-4 weeks before calving.