translate English to French: Those vaccinations had to be and still have to be administered, but with certain restrictions due to the fact that there is a danger of the virus being transferred from vaccinated animals to those which have not been vaccinated.
Ces vaccins devaient et doivent encore être administrés, mais avec certaines restrictions dues au fait qu'il y a danger que le virus vaccinal se transmette d'animaux vaccinés à des animaux non vaccinés.