Translate the following English sentence to French:
"It is likely that cases may occur due to maternal transmission but these will be isolated and not feed-related, and there is no justification for a return to cohort culling."
Il est probable que des cas d'ESB apparaissent à cause de la transmission maternelle, mais ce seront des cas isolés qui ne seront pas dus à l'alimentation, et rien ne justifie le retour des mesures d'abattage massif.