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A Primary Neuron Culture System for the Study of Herpes Simplex Virus Latency and Reactivation
Published on: April 2, 2012
Herpes simplex virus central nervous system relapse during treatment of infantile spasms with corticotropin
Joshua L Bonkowsky1, Francis M Filloux, Carrie L Byington
1Division of Pediatric Neurology, Department of Pediatrics, University of Utah Health Sciences Center, Salt Lake City, Utah, USA. joshua.bonkowsky@hsc.utah.edu
Insights
A corticotropin treatment for infantile spasms in an infant with herpes simplex virus (HSV) encephalitis led to recurrent HSV reactivation. Concurrent acyclovir or avoiding corticotropin in HSV patients is recommended.
Area of Science:
- Neurology
- Infectious Diseases
- Pediatrics
Background:
- Herpes simplex virus (HSV) encephalitis is a severe neurological infection in infants.
- Acyclovir is the standard treatment for HSV encephalitis.
- Infantile spasms are a type of epilepsy that can occur in infants.
Observation:
- An infant with HSV encephalitis experienced severe brain damage despite acyclovir treatment.
- The infant later developed infantile spasms and was treated with corticotropin.
- Following corticotropin treatment, the infant showed signs of recurrent HSV encephalitis with new brain lesions.
Findings:
- Corticotropin treatment may have caused immunosuppression, leading to HSV reactivation.
- Recurrent HSV encephalitis occurred despite previous treatment and despite new brain lesions.
Implications:
- Corticotropin may be relatively contraindicated in patients with a history of HSV infection.
- Concurrent intravenous acyclovir administration should be considered during corticotropin treatment in such patients.
- This case highlights the potential risks of immunosuppressive therapy in patients with a history of viral encephalitis.
Abstract:
Here we report an infant who had herpes simplex virus (HSV) encephalitis and sustained severe bilateral damage to the posterior frontal lobes, postcentral gyri, and the thalami despite intravenous acyclovir treatment. At 7 months of age, the patient developed infantile spasms and was treated with corticotropin injections. After 10 days of corticotropin treatment, she developed lethargy, fever, and opisthotonic posturing. Her cerebrospinal fluid again was positive for HSV DNA, indicating recurrent HSV encephalitis, and repeat MRI revealed new lesions of the right frontal, parietal, temporal, and occipital lobes. Immunosuppression by corticotropin may have led to the reactivation of the HSV encephalitis. Corticotropin should be relatively contraindicated for use when a patient has a history of HSV infection, or intravenous acyclovir should be administered concurrently.
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