In Germany, the current outbreak of mass social media-induced illness is initiated by a ‘virtual’ index case, who is the second most successful YouTube creator in Germany and enjoys enormous popularity among young people. Affected teenagers present with similar or identical functional ‘Tourette-like’ behaviours, which can be clearly differentiated from tics in Tourette syndrome.
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patients often reported to be unable to perform unpleasant tasks because of their symptoms resulting in release from obligations at school and home, while symptoms temporarily completely disappear while conducting favourite activities.