Meningococcal Infection

Category: Health & Disease Prevention | GS Paper II and III

SEO Title: Meningococcal Infection: Causes, Symptoms, Vaccines and Public Health Prevention

UPSC Notes

Meningococcal infection is a potentially life-threatening bacterial disease that can cause meningitis and septicaemia.

  • Causative organism: Neisseria meningitidis.

  • Major serogroups: A, B, C, W, X and Y.

  • Transmission: Respiratory droplets and throat secretions during close contact.

  • Risk settings: Crowded environments such as hostels, camps and large gatherings.

  • Symptoms: Sudden fever, severe headache, neck stiffness, vomiting, sensitivity to light and a non-blanching rash.

  • Disease progression: Severe cases can progress rapidly and become fatal within a short period.

  • Possible complications: Hearing loss and limb loss among survivors of severe disease.

  • Vaccines: MenACWY and MenB vaccines cover different meningococcal serogroups.

  • Close contacts: Preventive antibiotics may be recommended by public health authorities.

  • International relevance: The African meningitis belt experiences recurrent epidemics.

  • Global objective: The World Health Organization has promoted a goal of defeating meningitis by 2030.

Key Pointers for Prelims

  • Organism: Neisseria meningitidis.

  • Main diseases: Meningitis and septicaemia.

  • Transmission: Close contact through respiratory secretions.

  • Prevention includes vaccination and public health management of close contacts.

  • Rapid recognition is important because the infection may progress quickly.