17 . Pursuant to the Law on Protection of Population against Contagious Diseases ( The Official Bulletin of RS , No . 125/04 ) and the Book of Rules on Immunization and Method of Protection by Medicaments , it is a legal obligation to vaccinate all children at birth against tuberculosis ( BCG ) , and at the age of 1 year against diphtheria , tetanus and pertussis ( DTaP ) , polio ( OPV ) , hepatitis B ( HepB ) and Haemofilus Influenza of type B ( Hib ) .