No dog or cat shall be registered for a license by the village clerk or any other authorized representative of the village unless the owner or keeper of such dog or cat exhibits at the time of registration a certificate by a licensed veterinarian that such dog or cat, during the current calendar year or the calendar year immediately preceding such registration for a license, has been inoculated against rabies. It shall be unlawful to keep or harbor in the village a dog or cat that has not been vaccinated against rabies for the current year. (1965 Code § 9-7-33)