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It was also believed that concurrent circulation of two different influenza A subtypes didn’t occur. Although laymen confer with many incapacitating respiratory infection as “flu”, true influenza is attributable to the small family of the Orthomyxoviridae. Myxo derives from the Greek for mucus and refers to the power of these viruses to attach to mucoproteins on the cell floor; ortho means true or regular, as in orthodox, and distinguishes these viruses from the Paramyxoviridae (measles is a member of this household). It was first identified by its capability to agglutinate erythrocytes, therefore its name, but it is now obvious that it also has necessary roles within the attachment and entry of virus to the cells of the host and in determining virulence. Its predominant function appears to be connected with release of new virus from cells. The main nutritional parts of bird’s nest are: water-soluble protein, carbohydrates, trace parts – calcium, phosphorus, iron, sodium, potassium and an essential element needed for the human body “neuraminic acid”, also referred to as “bird’s nest acid”. They’re: Influenza virus A, B and C as well as Thogoto-like virus which is a tick-borne virus of mammals.
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