Related Experiment Video
Updated: Aug 10, 2026

Evaluation of Zika Virus-specific T-cell Responses in Immunoprivileged Organs of Infected Ifnar1-/- Mice
Published on: October 17, 2018
[Neurological symptoms after an infection by the sandfly fever virus]
C Pauli1, T F Schwarz, C G Meyer
1Max von Pettenkofer-Institut für Hygiene und Medizinische Mikrobiologie, Universität München.
Unlabelled:
CASE 1: A few days after returning from a holiday in Italy a 50-year-old man developed acute gastrointestinal symptoms, followed by headache, fever and joint pains. After transitory remission he had a relapse with fever, headache and meningitis 2 weeks later. Cerebrospinal fluid contained gram-negative diplococci, but no bacteria grew on culture. Under the suspected diagnosis of meningitis he was treated with penicillin. Ten days later he suddenly developed deafness in his right ear. The various signs and symptoms gradually disappeared and the patient was discharged after 24 days in hospital. Retrospectively serological tests indicated sandfly fever (SF) virus infection with serotype Toscana. This is thought to be the first reported case of deafness associated with this disease. CASE 2: One week after returning from a holiday in Tunisia a 34-year-old man fell ill with fever, headache, rigor, nausea, joint pains and a maculopapular rash for which he was treated as an outpatient. The symptoms improved after 7 days, except for the headache which persisted another 5 days. Serology demonstrated an acute infection by SF virus, serotype Sicilian.
Conclusion:
Sandfly fever should be included in the differential diagnosis of headache, fever and signs of meningitis in persons who have recently been to mediterranean countries.
Related Concept Videos
Viral Meningitis
Rabies
Arboviral Encephalitis
Leishmaniasis
Encephalitis l: Introduction
Encephalitis ll: Pathophysiology

