A39.0

Clinical Causes: The primary cause of meningococcal meningitis is the bacteria Neisseria meningitidis. It spreads through respiratory droplets from coughs, sneezes, or close contact with an infected person. Having an open or multiple unprotected contacts with carriers of the bacteria increases the risk. Living in crowded environments like dormitories, military barracks, or shelters can facilitate the spread. Individuals with a weakened immune system are more susceptible to infection. Certain ethnic groups and geographic regions see higher incidences, often linked to bacterial strain prevalence.

Key Symptoms: Sudden high fever Severe headache Stiff neck Nausea and vomiting Sensitivity to light (photophobia) Confusion or altered mental state Seizures (in some cases) Skin rashes that do not fade under pressure, which can appear as purple or red spots General feelings of weakness or fatigue

Diagnosis Path: A thorough medical history and physical examination to identify symptoms and potential exposure. Blood tests to detect bacteria or antibodies. Lumbar puncture (spinal tap) to analyze cerebrospinal fluid for bacteria, white blood cells, and other indicators. Additional tests such as blood cultures, PCR testing, or imaging studies may be employed to confirm the diagnosis and identify the bacterial strain.

Treatment Protocols: Intravenous antibiotics to eliminate the bacteria, often started empirically before test results confirm the diagnosis. Supportive care, including fluids, oxygen therapy, and medications to manage symptoms like fever and pain. Close monitoring in a hospital setting to identify and address potential complications. In some cases, corticosteroids may be administered to reduce inflammation. Preventive measures for close contacts, such as antibiotic prophylaxis, to reduce the risk of spread.