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Updated: Aug 23, 2026

Intracranial Injection of Adeno-associated Viral Vectors
Published on: November 17, 2010
First report of postoperative intracranial Weeksella virosa infection
Sebastian M Toescu1, Sandra Lacey2, Hu Liang Low3
1Department of Neurosurgery, Essex Neurosciences Centre, Queens Hospital, Romford, RM7 0AG, UK. s.m.toescu@gmail.com.
Abstract:
A 49-year-old female underwent multiple craniotomies for resection of recurrent malignant meningiomata (WHO grade III). She re-presented with sepsis due to a ventricular empyema. The craniotomy wound was urgently debrided, and isolates of the gram-negative rod, Weeksella virosa, were identified on 16S PCR. This species is most commonly found as a genitourinary commensal. We present the first documented intracranial infection by Weeksella virosa and its successful treatment with oral β-lactam antibiotics.
Insights
This study reports the first case of intracranial infection caused by Weeksella virosa, a bacterium typically found in the genitourinary tract. The patient successfully recovered after treatment with oral beta-lactam antibiotics.
Area of Science:
- Neuroscience
- Infectious Diseases
- Microbiology
Background:
- Malignant meningiomas (WHO grade III) can necessitate multiple craniotomies.
- Recurrent tumors pose significant clinical challenges, increasing infection risk.
Observation:
- A patient with recurrent malignant meningioma developed sepsis from a ventricular empyema.
- Gram-negative rod, Weeksella virosa, was identified via 16S PCR in the debrided craniotomy wound.
Findings:
- Weeksella virosa, usually a genitourinary commensal, caused a rare intracranial infection.
- The infection was successfully treated with oral beta-lactam antibiotics.
Implications:
- Highlights the potential for unusual pathogens in complex neurosurgical cases.
- Demonstrates the efficacy of beta-lactam antibiotics for Weeksella virosa intracranial infections.
- Emphasizes the importance of broad-spectrum identification in post-craniotomy sepsis.
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