It is always a good idea for your cat or dog to have regular vaccinations. However, we know that for many people this is not possible. We will assume that your pet has not been vaccinated unless you can bring its vaccination certificate with it. If it has been vaccinated, it will be easier for Endeavour to find a placement.It is always a good idea for your cat or dog to have regular vaccinations. However, we know that for many people this is not possible. We will assume that your pet has not been vaccinated unless you can bring its vaccination certificate with it. If it has been vaccinated, it will be easier for Endeavour to find a placement.