Translation of "été constatée jusqu’alors " (French → English) :

Definition: A condition, so far found only in girls, in which apparently normal early development is followed by partial or complete loss of speech and of skills in locomotion and use of hands, together with deceleration in head growth, usually with an onset between seven and 24 months of age. Loss of purposive hand movements, hand-wringing stereotypies, and hyperventilation are characteristic. Social and play development are arrested but social interest tends to be maintained. Trunk ataxia and apraxia start to develop by age four years and choreoathetoid movements frequently follow. Severe mental retardation almost invariably results.

the presence in its territory of a Union quarantine pest not known to be present there.

Where a competent authority suspects or has received evidence concerning the presence of a Union quarantine pest, or a pest subject to measures adopted pursuant to Article 30(1), in a part of the territory of its Member State where that pest was previously not known to be present, or in a consignment of plants, plant products or other objects introduced into, intended to be introduced into, or moved within, the Union territory, it shall immediately take the measures necessary to confirm whether that pest is present (‘to officially confirm’).

Where a competent authority suspects, or has received evidence concerning, the presence of a Union quarantine pest, or a pest subject to measures adopted pursuant to Article 30(1), in a part of the territory of the respective Member State where that pest was previously not known to be present, or in a consignment of plants, plant products or other objects introduced into, intended to be introduced into, or moved within the Union territory, it shall immediately take any measures necessary to confirm on the basis of a diagnosis of an official laboratory as referred to in Article 37 of Regulation ►C1 (EU) 2017/625 ◄ (“to officially confirm” ...[+++]), whether that pest is present or not.

Member States should therefore carry out surveys for the presence of Union quarantine pests in the areas where those pests were not known to be present.