Related Experiment Video

Updated: Aug 13, 2026

Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
11:32

Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria

Published on: February 23, 2014

Meningococcal pneumonia and empyema

H S Sacks

    The American Journal of Medicine
    |February 1, 1986
    PubMed

    Insights

    A rare case of pneumonia and empyema caused by Neisseria meningitidis was initially missed. Prompt recognition of unusual meningococcal infections is crucial to prevent transmission to close contacts and healthcare professionals.

    Area of Science:

    • Medicine
    • Infectious Diseases
    • Pulmonology

    Background:

    • Neisseria meningitidis is a bacterium primarily known for causing meningitis.
    • Meningococcal infections can present with diverse clinical manifestations.

    Observation:

    • A case of pneumonia and empyema was observed.
    • The initial diagnosis of the condition was missed.

    Findings:

    • The causative agent was identified as Neisseria meningitidis.
    • Meningococcal pneumonia and empyema are rare clinical presentations.

    Implications:

    • Early identification of unusual meningococcal disease is critical.
    • Prompt diagnosis aids in preventing the spread of infection to contacts and healthcare settings.

    More Related Videos

    Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery10:03

    Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery

    Published on: November 5, 2019

    Induction of Leptomeningeal Cells Modification Via Intracisternal Injection05:55

    Induction of Leptomeningeal Cells Modification Via Intracisternal Injection

    Published on: May 7, 2020

    Related Concept Videos

    Pneumonia I: Introduction01:30

    Pneumonia I: Introduction

    Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
    Risk Factors
    Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
    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...
    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,...
    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...
    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...
    Pneumonia I: Introduction01:29

    Pneumonia I: Introduction

    Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...