A32.11

Clinical Causes: Ingestion of contaminated food or water containing Listeria monocytogenes, such as unpasteurized dairy products, raw meats, or processed foods. Transmission from mother to baby during pregnancy through the placenta or birth canal. Infection acquired through contact with contaminated soil or water sources. Less frequently, spread through direct contact with infected individuals or animals.

Key Symptoms: Fever and chills Headache and neck stiffness Confusion or altered mental state Sensitivity to light (photophobia) Nausea and vomiting Seizures in severe cases In newborns, symptoms may include irritability, poor feeding, and lethargy.

Diagnosis Path: To confirm listerial meningitis, healthcare providers typically use a combination of methods. They may perform a lumbar puncture (spinal tap) to analyze cerebrospinal fluid for bacteria, elevated white blood cells, or increased protein levels. Blood tests and imaging scans like MRI or CT scans may also be employed to identify the infection and any complications. Culturing samples from blood or cerebrospinal fluid helps identify Listeria monocytogenes directly.

Treatment Protocols: Treatment usually involves targeted antibiotics effective against Listeria monocytogenes, such as ampicillin or penicillin. In some cases, antibiotics may be combined with other medications based on the patient's overall health and severity of infection. Supportive care, including hydration, management of symptoms, and monitoring for neurological complications, is essential. Early diagnosis and prompt treatment are critical for improving outcomes.