Bacterial Infections

  • Author: Harjot K. Singh, MD (More Info)
  • Editors in Chief: Joseph J. Eron, Jr., MD; Daniel R. Kuritzkes, MD
  • Last Reviewed: 8/31/21 (What's New)


  • Major features of pneumococcal pneumonia include abrupt onset of symptoms and early presentation with fever, cough that often produces purulent sputum, dyspnea, and, in some cases, pleurisy[Selwyn 1998]
  • Preceding viral infections, particularly influenza, are common[Morens 2008]
  • Characteristic laboratory findings include leukocytosis and a relatively high CD4+ cell count, although incidence is also increased in advanced disease

Action required