Division 4 A bovine herd is brucellosis-free if it complies with the conditions in 1(b) and (c) and when vaccination has been carried out as follows:F1F2

female bovine animals have been vaccinated:

• before the age of six months old with live strain 19 vaccine, or

• before the age of 15 months old with killed 45/20 adjuvant vaccine which has been officially inspected and approved, or

• with other vaccines approved under the procedure laid down in Article 17;

bovine animals under 30 months old which have been vaccinated with live strain 19 vaccine may give a serum agglutination test result greater than 30 IU but less than 80 IU of agglutination per millilitre provided that, on the complement fixation test, they give a result less than 30 EEC units in the case of females vaccinated less than 12 months previously or less than 20 EEC units in all other cases.