Possible Causes for Lower Respiratory Tract Infection in USA

  • Immune System Disorder
    Lower Respiratory Tract Infection

    An immune disorder is a dysfunction of the immune system. These disorders can be characterized in several different ways: By the component(s) of the immune system affected By whether the immune system is overactive or underactive By whether the condition is congenital or acquired According to the International…[1]

  • Congenital Emphysema
    Lower Respiratory Tract Infection
  • Chronic Obstructive Pulmonary Disease
    Lower Respiratory Tract Infection

    Symptoms and signs may include: Fatigue Dyspnea  Paroxysmal nocturnal dyspnea (PND) Chest tightness Wheezing Cough with sputum (mucoid and/or purulent) Fever Chest pain Workup consists of a detailed history, tests and physical examination. Laboratory Tests Complete blood count Arterial blood gases Serum…[2]

  • Severe Acute Respiratory Syndrome
    Lower Respiratory Tract Infection

    Severe Acute Respiratory Syndrome (SARS) is an infectious disease whose symptoms mimic those of a common cold but are more severe and can progress to life-threatening respiratory failure. It was first reported in China in 2002 with a high incidence of mortality. SARS is a highly contagious disease that caused a…[3]

  • Aspiration of Gastric Contents
    Lower Respiratory Tract Infection
  • Mucopolysaccharidosis 1
    Lower Respiratory Tract Infection

    Mucopolysaccharidosis 1 is a rare lysosomal storage disease provoked by mutations of the gene encoding for alpha-L-iduronidase, an enzyme required for the breakdown of determined glycosaminoglycans. Depending on the severity of the disease, patients may be diagnosed with Scheie syndrome, Hurler Scheie syndrome…[4]

  • Fucosidosis
    Lower Respiratory Tract Infection

    Fucosidosis a glycoprotein storage disorder and involves genetic mutations of the FUCA1 gene, which, in turn, profoundly inhibits the functionality of the alpha-L-fucosidase enzyme, responsible for cleaving the fucose sugar molecule at the end of the catabolism process. Fucosidosis is a disorder that may have a…[5]

  • Hypogammaglobulinemia
    Lower Respiratory Tract Infection

    Hypogammaglobulinemia is a term describing insufficient levels of gamma globulins, which may occur from malignant, genetic or iatrogenic diseases. Recurrent infections of the respiratory tract and the ear are the main clinical manifestations and infections are one of the most important complications. The diagnosis is…[6]

  • Bronchiectasis
    Lower Respiratory Tract Infection

    The clinical manifestations typical with bronchiectasis are cough and daily mucopurulent production of sputum which may last from months to years. Blood-streaked sputum or hemoptysis may be as a result of airway damage following acute infection. Less specific symptoms include dsypnea, pleuritic chest pain, weight…[7]

  • Atrial Septal Defect
    Lower Respiratory Tract Infection

    Atrial septal defect (ASD) is a congenital malformation characterized by a communication between the atrial chambers of the heart. History ASDs are usually asymptomatic in infancy and childhood. In most cases, the symptoms manifest by the third decade of life. Due to paucity of symptoms, most times ASDs go…[8]

Further symptoms

Similar symptoms


  1. Wikipedia: Immune disorder, CC-BY-SA-3.0
  2. Chronic Obstructive Pulmonary Disease, Symptoma
  3. Severe Acute Respiratory Syndrome, Symptoma
  4. Mucopolysaccharidosis 1, Symptoma
  5. Fucosidosis, Symptoma
  6. Hypogammaglobulinemia, Symptoma
  7. Bronchiectasis, Symptoma
  8. Atrial Septal Defect, Symptoma