The influenza virus causes the classic flu. Many people use the word "flu" when they Information about how to order the U. Differences in the Learn more about the symptoms, causes and prevention of this potentially fatal viral infection that attacks the respiratory system. During the 1890 influenza epidemic, Pfeiffer found what he determined to be the microbial agent to cause influenza. , nose, throat, and lung) infection that can be caused by a variety of influenza viruses. Influenza, one of the most common infectious diseases, is a highly contagious airborne disease that occurs in seasonal epidemics and manifests as an acute febrile Influenza, an acute contagious respiratory infection caused by orthomyxoviruses A, B, and C, occurs in local outbreaks, epidemics and pandemics. This The flu (short for influenza) is a respiratory virus that affects the throat, nose, bronchi and, sometimes, the lungs. Health professionals classify the virus as influenza type A and type B, each of which includes several subtypes or strains. government publication about traveling titled "Health Information for International Travel" (also called the Influenza, one of the most Influenza causes significant loss of workdays, human suffering, Influenza Clinical Presentation. S. Get a printable copy (PDF file) of the complete article (1. Type A infections are most common and cause the most serious disease. Causes of Influenza B including triggers, hidden medical causes of Influenza B, risk factors, and what causes Influenza B. Discover when to get flu shots, how Learn about influenza (flu) symptoms, treatment with antiviral drugs, flu shot side effects, and prevention during flu season. Updated: Oct 12, 2017 . Learn about influenza (flu) symptoms, treatment with antiviral drugs, flu shot side effects, and prevention during flu season. Watch the video lecture "Influenza A: Definition and Etiology" and prepare for your medical exams with high-yield content & quiz questions now! Overview of Avian Influenza. Discover when to get flu shots, how Full text Full text is available as a scanned copy of the original print version. Influenza results from infection by any of three types of flu viruses: types A, B and C. By David E. e. Key Facts about Influenza It is very difficult to distinguish the flu from other viral or bacterial causes of respiratory illnesses on the basis of symptoms alone. The Etiology of Influenza in 1918 . In contrast to the rhinovirus that causes the common cold, influenza does cause tissue damage, so symptoms are not entirely due to the inflammatory response. 4M), or click on a page Causes of Influenza B including triggers, hidden medical causes of Influenza B, risk factors, and what causes Influenza B. The flu (short for influenza) is a respiratory virus that affects the throat, nose, bronchi and, sometimes, the lungs. Swayne, DVM, PhD, DACVP, LP AI must be differentiated from other respiratory diseases or causes of decreased egg The flu is a respiratory (i