Essays on Avian

Introduction

Multiple researches suggest that dinosaurs are among the most successful groups of animals to have ever lived on earth. Their body physique and adaptability enhanced their survival thereby extending their life longevity. In the course of time, these species evolved into diverse shapes and sizes. As a result, the different types of evolved organisms embraced various modes of living. According to Xu (2006), nearly 150 years after the discovery of the first fossils of the dinosaur, this species was believed be a reptile. In fact, when Richard Owen found the first remains of this organism, the paleontologists used the ...

Flu is a viral disease that influences for the most part the nose, throat, bronchi and, once in a while, lungs. Disease typically goes on for around a week, and is portrayed by sudden onset of high fever, hurting muscles, cerebral pain and extreme disquietude, non-beneficial hack, sore throat and rhinitis (WHO, 2016). The name "flu" started in fifteenth century Italy, from a plague ascribed to "impact of the stars." The principal pandemic, or overall pestilence, that unmistakably fits the portrayal of flu was in 1580. No less than four pandemics of flu happened in the nineteenth century, and ...

Avian influenza refers to an infectious disease that originates from wild birds and can be transmitted to humans through contact with domesticated birds. The avian flu virus initially originated from wild birds, and I have noted that they are not usually affected by this illness but spread the virus to birds that are domesticated or raised for food like ducks, turkey, chicken, and pigeons. Avian influenza is highly pathogenic and has led to severe outbreaks in birds that are domesticated mostly in the Asian and Middle East region. There are several types of avian flu, but the most common ...

Background and Significance

Influenza, a viral infectious disease caused by influenza viruses, primarily affect the respiratory system and result in hospitalization and death among both the young and the elderly, as well as the pregnant women and chronically ill; epidemics cause an average of 25,000 deaths annually in the United States alone. (1). The human influenza virus has three types: Type A, type B, and type C. Influenza A has subtypes, classified by surface antigens, hemagglutinin (HA) and neuraminidase (NA). Influenza A has 16 different hemagglutinin subtypes and 9 different neuraminidase subtypes and strains have a nomenclature of H (1-16) N (1-9) ( ...