Background And Objectives: Encephalitis can cause a severe public health problem. The main aim of this research was to evaluate the medical laboratory results of patients with Herpes Simplex Virus (HSV) encephalitis.
Materials And Methods: Diagnosis of encephalitis for these patients was firstly based on a clinical profile for Herpes Simplex Encephalitis (HSE), plus either a detected HSV1&2-DNA by PCR in CSF or brain neuro-imaging results.
Results: Molecular testing on CSF showed that 15 patients (15%) had HSV infection, 5 patients (5%) had Varicella Zoster Virus (VZV) and one case was positive for Human Immunodeficiency Virus (HIV)-RNA in CSF. The cause of encephalitis in 79 out of 100 patients (79%) was unknown. The comparison of CSF analysis in HSV positives and negatives showed a significant increase of glucose and protein levels in HSV positives than negatives. The mortality rate was 46.6% (7/15) in patients with HSV encephalitis compared to 11.4% (10/85) in non-HSV encephalitis (P = 0.003).
Conclusions: In the current study, 15% of cases were diagnosed as having HSV.
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