Black-marked - Tradução em português
The National Science Advisory Board for Biosecurity (NSABB) declared a paper Fouchier had sent them – and the US journal Science – too dangerous to publish. The board called for key sections of the report to be deleted, to prevent the recipe for the virus falling into the hands of bioterrorists. Fouchier was not alone in having his work black-marked.
"black-marked" - na "lista negra" (o trabalho oferece muitos riscos à sociedade).
Perhaps, Telma. I think it means to have sections of his paper deleted by having black ink applied over sensitive words making them illegible.