Influenza virus
Influenza Virus
The Influenza Virus (pronounced: /ˌɪn.fluˈɛn.zə ˈvaɪ.rəs/) is a type of virus that causes the infectious disease known as influenza. The term "influenza" is derived from the Italian word "influenza," meaning "influence," due to the disease's widespread impact.
Etymology
The term "influenza" was first used in this sense in the mid-18th century, borrowed from the Italian influenza, originally meaning "visitation, influence (of the stars)," from Medieval Latin influentia. The word "virus" comes from the Latin word "virus" meaning "poison, sap of plants, slimy liquid".
Types
There are three types of influenza viruses: Influenza A, Influenza B, and Influenza C. Influenza A and B viruses are responsible for seasonal epidemics almost every winter. Influenza C is less common and usually causes mild illnesses in humans.
Transmission
Influenza viruses are transmitted from person to person mainly through the aerosols produced by coughing and sneezing, and by touching contaminated surfaces.
Symptoms
Common symptoms of influenza include fever, cough, sore throat, runny nose, body aches, headache, chills, and fatigue.
Prevention and Treatment
Prevention methods include vaccination, good respiratory hygiene, and antiviral drugs. Treatment primarily involves rest, fluids, and over-the-counter medications to relieve symptoms.
See Also
External links
- Medical encyclopedia article on Influenza virus
- Wikipedia's article - Influenza virus
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