Rabies is a zoonotic viral disease that attacks the central nervous system. The best way to prevent urban rabies is preventive vaccination of dogs. Dogs in Slovenia must be vaccinated with the first dose in the age between 12 and 16 weeks and with the second and third dose 12 months after the prior one. All the following vaccinations are given in accordance with vaccine manufacturer´s instructions. The aim of this study was to calculate the correlation between the age of dogs and the titer of antibodies, since positive correlation might contribute to the change of the vaccination scheme. We evaluated rabies neutralising antibodies titers via FAVN. Antibody titres ⡥ 0,5 IE/ml are considered protective against rabies infection. Among all tested samples belonging to different countries the majority was positive and among negative samples the majority was entitled to dogs younger than a year, that were vaccinated only once. Only in the case of Serbia and Montenegro there was a big enough positive correlation between the age of dogs and the titre of antibodies, to say that the age of dogs influences the titre of antibodies. In the case of other countries there was no correlation, therefore we would not change the existing scheme of the first three vaccinations. We suggest that all the following vaccinations are carried out one to three years after the prior dose.
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