It is not allowed the introduction in the Bardena of not vaccinated cattle and, if it were brought in, it shall be inmediately taken out. To prove the vaccination, a certificate from the veterinarian endorsed by the major shall be presented. If, even having been vaccinated, [the cattle] got sick with smallpox or scables, it shall be sent to the 'infirmary' and shall not be taken out of the Bardena.