Time-series analysis of meningococcal disease in Catalonia

Angela Domínguez1, Pilar Muñoz, Neus Cardeñosa

  • 1Epidemiological Surveillance Service, Department of Health, Generalitat of Catalonia, Barcelona, Spain. angela.dominguez@gencat.net

Abstract

Insights

Meningococcal disease serogroups B and C in Catalonia showed different temporal patterns. Serogroup B cases correlated with influenza epidemics, while serogroup C cases linked to influenza and inversely to vaccination campaigns.

Area of Science:

  • Epidemiology
  • Infectious Disease Dynamics
  • Public Health Surveillance

Background:

  • Meningococcal disease incidence in Catalonia was elevated in 1996-1997.
  • Analysis of temporal trends for serogroup B and C meningococcal disease is crucial for public health interventions.

Purpose of the Study:

  • To analyze the temporal behavior of serogroup B and C meningococcal disease cases in Catalonia.
  • To understand the epidemiological patterns of different meningococcal serogroups over time.

Main Methods:

  • Time series analysis of confirmed meningococcal disease cases from 1996 to 2004.
  • Application of Poisson regression models (GLM and ZIP) to analyze serogroup B and C case data respectively.

Main Results:

  • Temporal evolution of serogroup B and C meningococcal disease cases were correlated.
  • Serogroup B cases showed association with influenza epidemics.
  • Serogroup C cases exhibited association with influenza epidemics and inverse association with vaccination campaigns.

Conclusions:

  • Serogroup B and C meningococcal disease exhibit distinct temporal dynamics.
  • Understanding these distinct patterns can inform and evaluate vaccination strategies for meningococcal disease.

Related Concept Videos

Bacterial Meningitis01:24

Bacterial Meningitis

Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Viral Meningitis01:18

Viral Meningitis

Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Investigation of Disease Outbreaks01:23

Investigation of Disease Outbreaks

Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...