Email a Friend
Print ArticleMedical Dictionary
influenza
Pronunciation (in′flū-en′ză)
- An acute infectious respiratory disease, caused by Influenza viruses, which are in the family Orthomyxoviridae, in which the inhaled virus attacks the respiratory epithelial cells of those susceptible and produces a catarrhal inflammation; characterized by sudden onset, chills, fever of short duration (3–4 days), severe prostration, headache, muscle aches, and a cough that usually is dry and may be followed by secondary bacterial infections that can last up to 10 days. The disease commonly occurs in epidemics, sometimes in pandemics, which develop quickly and spread rapidly; the mortality rate is usually low, but may rise in patients with secondary bacterial pneumonia, particularly in old people and those with underlying debilitating diseases; strain-specific immunity develops, but mutations in the virus are frequent, and such immunity usually does not affect antigenically different strains.
Syn: flu, grippe
[It. influence (of planets or stars), fr. L. influentia, fr. in-fluo, to flow in]
WebMD Medical Reference from "Stedman's Medical Dictionary"
The publisher is not responsible (as a matter of product liability,
negligence or otherwise) for any injury resulting from any material contained
herein. This publication contains information relating to general principles of
medical care which should not be construed as specific instructions for
individual patients. Manufacturers’ product information and package inserts
should be reviewed for current information, including contraindications,
dosages and precautions.
Stedman’s Medical Dictionary 28th Edition, Copyright© 2006_Lippincott Williams & Wilkins. All rights reserved.
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12Statins
Exercise can not only reshape your body and make you physically fit, it may also cause positive changes to your brain.
WebMD does not provide medical advice, diagnosis or treatment.