influenza

influenza infection|influenza with non-respiratory manifestation|Influenza with other manifestations|human influenza|influenza, human|grippe (archaic)|the grippe (archaic)|flu infection|common flu|the flu

Influenza

infectious disease caused by an influenza virus

H1N1 Influenza Virus Particles (8411599236).jpg

Infectious disease

<span lang="en" dir="ltr"><span class="mw-page-title-main">Influenza</span></span>

Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four days after exposure to the virus and last for about two to eight days. Diarrhea and vomiting can occur, particularly in children. Influenza may progress to pneumonia from the virus or a subsequent bacterial infection. Other complications include acute respiratory distress syndrome, meningitis, encephalitis, and worsening of pre-existing health problems such as asthma and cardiovascular disease.

en

https://upload.wikimedia.org/wikipedia/commons/a/a4/EM_of_influenza_virus.jpg

1349218540

https://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/EM_of_influenza_virus.jpg/330px-EM_of_influenza_virus.jpg

Influenza

standard