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...... The H5N1 influenza virus is generally transmitted through two basic waysfirst, by inhaling infected droplets from a virus carrier (i.e., an animal, bird or human) which has been shown to be the most common transmission mode and by direct physical contact with the droplets via the environment or human-to-human. Once exposed, the virus quickly infects the upper respiratory system, the sinuses, or both areas simultaneously with an incubation period ranging from two days and upwards to eight days or longer, depending on the amount of exposure and the type of transmittal (Beigel, et al., 1376)
As to symptoms associated with the H5N1 virus, the infected person will first experience a high fever and disturbances linked to the lower respiratory tract, much like symptoms associated with more common types of flu. Along with these symptoms, there may also be vomiting, diarrhea, severe abdominal pain and perhaps bleeding from the nose and gums, although these symptoms are rather rare in most persons. Of course, because of various immune system responses to the H5N1 virus, some persons may not experience much discomfort and may

only complain of a headache or infrequent diarrhea......

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