And as long as the opportunities for treatment are few and the fear of social exclusion is real, many will not want to know.

Translate to French.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Et, tant que les possibilités de traitement seront limitées et que la crainte de l'exclusion sociale sera réelle, beaucoup préféreront ne rien savoir.