Anamnesis

History: A 28-year-old male patient, previously healthy, presents with a diffuse and intense headache for 2 days, associated with fever (38.5°C), photophobia, and neck stiffness. He reports a sudden onset of symptoms following a flu-like illness (rhinorrhea and myalgia). He denies any history of trauma or immunosuppression.

Physical Examination: Positive neck stiffness (Brudzinski's sign), without focal neurological deficits.

Complementary Exams:

CSF: Leukocytosis (120 cells/mm³, lymphocytic predominance), elevated protein (80 mg/dL), normal glucose. PCR negative for bacteria.

CSF PCR: Positive for enterovirus.

Report this case — e.g. suspected re-identification risk.