Brain Diseases/parasitology; Gnathostoma; Intracranial Hemorrhages/etiology; Spirurida Infections/complications; Acute Disease; Adolescent; Albendazole/administration & dosage; Albendazole/therapeutic use; Animals; Anthelmintics/administration & dosage; Anthelmintics/therapeutic use; Anti-Inflammatory Agents/administration & dosage; Anti-Inflammatory Agents/therapeutic use; Antibodies, Helminth/blood; Antibodies, Helminth/cerebrospinal fluid; Blotting, Western; Brain Diseases/complications; Brain Diseases/diagnosis; Brain Diseases/diagnostic imaging; Cerebral Angiography; Dexamethasone/administration & dosage; Dexamethasone/therapeutic use; Drug Therapy, Combination; Female; Gnathostoma/immunology; Humans; Intracranial Hemorrhages/diagnosis; Intracranial Hemorrhages/diagnostic imaging; Paresis/etiology; Spirurida Infections/diagnosis; Spirurida Infections/drug therapy; Spirurida Infections/immunology; Time Factors