Related Experiment Videos

Moraxella catarrhalis pneumonia in an AIDS patient: a case report

Attapon Cheepsattayakorn1, Prasit Tharavichitakul, Sakchai Dettrairat

  • 110th Zonal Tuberculosis and Chest Disease Center, Chiang Mai, 10th Office of Disease Prevention and Control, Department of Disease Control, Ministry of Public Health, Thailand. attaponche@yahoo.com

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
|March 4, 2009
PubMed

Insights

Moraxella catarrhalis pneumonia is a rare but serious infection in immunocompromised patients, particularly those with acquired immunodeficiency syndrome (AIDS). Early diagnosis through sputum analysis and imaging is crucial for effective treatment and improved outcomes.

Area of Science:

  • Infectious Diseases
  • Pulmonology
  • Immunology

Background:

  • Community-acquired pneumonia (CAP) is uncommon in immunocompromised individuals.
  • Moraxella catarrhalis can be a high-mortality pathogen when present in significant numbers.

Observation:

  • A case report details Moraxella catarrhalis pneumonia in an acquired immunodeficiency syndrome (AIDS) patient.
  • Clinical and initial chest roentgenographic findings are presented.
  • The patient responded well to Amoxyclav treatment.

Findings:

  • Diagnosis relies on sputum Gram's staining, cultures with susceptibility testing, and chest imaging.
  • CD4/CD8-T lymphocyte ratio is an important diagnostic indicator.
  • Moraxella catarrhalis pneumonia requires prompt and accurate diagnosis.

Implications:

  • Highlights the importance of considering uncommon pathogens in immunocompromised patients.
  • Emphasizes the role of diagnostic tools in managing severe pneumonia.
  • Suggests the need for further research into protective vaccines against Moraxella catarrhalis.

Related Concept Videos

Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
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...
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...
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,...
Amebiasis01:28

Amebiasis

Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following: