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Avian Influenza / Bird Flu

What are the modes of Transmission ?

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Waterfowl act as a reservoir of avian influenza virus by carrying the virus in their intestinal tract and shedding it in their feces. Avian influenza viruses are spread to susceptible birds through inhalation of influenza particles in nasal and respiratory secretions and from contact with the feces of infected birds.

The main way that influenza viruses are spread is from person to person in respiratory droplets of coughs and sneezes. (This is called "droplet spread.") This can happen when droplets from a cough or sneeze of an infected person are propelled (generally up to 3 feet) through the air and deposited on the mouth or nose of people nearby. Though much less frequent, the viruses also can be spread when a person touches respiratory droplets on another person or an object and then touches their own mouth or nose (or someone else's mouth or nose) before washing their hands.

A person can spread the flu starting one day before he or she feels sick. Adults can continue to pass the flu virus to others for another three to seven days after symptoms start. Children can pass the virus for longer than seven days. Symptoms start one to four days after the virus enters the body. Some persons can be infected with the flu virus but have no symptoms. During this time, those persons can still spread the virus to others.


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Posted by:  johnexo  Posted on: 02/15/2011
Symptoms of avian influenza in humans have ranged from typical human influenza-like symptoms [fever, cough, sore throat, and muscle aches] to eye infections, pneumonia, severe respiratory diseases (such as acute respiratory distress syndrome). http://www.biblehealth.com



Posted by:  Rajay86  Posted on: 08/19/2010
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