A brief review on Influenza A virus (H 3 N 2 ) and its effects in human with precondition

Manjari Agrawal; Ansh Aggarwal1; Surya Prakash D.V.

doi:10.37591/rrjomv.v13i1.3218

Abstract

A primary cause of human influenza is the viral genus Influenzavirus A, of which H3N2 is a subtype. The virus has undergone various mutations, resulting in the emergence of different strains, affecting pigs, humans, and birds. H3N2 exchanges internal protein-coding genes with other influenza subtypes through reassortment. The H3N2 virus, which is a type of seasonal influenza A virus, is still circulating globally and is causing symptoms very similar to those of the regular flu. In European pigs, the H3N2 virus is a combination of the classical H1N1 avian- like virus and the human H3N2 virus, resulting in a reassortant strain with avian-like HA and NA genes and internal genes from the human H3N2 virus. Antigenic drift occurs frequently in seasonal H3N2 viruses, which are linked to severe sickness in elderly persons. Every year, there are influenza outbreaks that eventually reach pandemic proportions. The treatment and prevention of influenza A virus infection have previously been licenced for two older medications, rimantadine (Flumadine and generic) and amantadine (generic). There is currently no vaccine available for H3N2v infection. Scientists have initiated initial measures in the direction of creating a vaccine; however, the Centers for Disease Control and Prevention (CDC) has stated that there has been no determination to commence large-scale production of a vaccine at this point.

Abstract

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