CURRENT AFFAIRS

Detailed explanation-1: -Influenza D virus has been found to be associated with respiratory disease in feedlot cattle (4). The zoonotic potential of influenza D virus remains unclear; this virus can replicate in ferrets (a model for human influenza infection), and a seroprevalance of 91% was found in persons working closely with cattle (5).

Detailed explanation-2: -Influenza D Virus (IDV) has been shown to be one of the numerous agents in the Bovine Respiratory Disease Complex (BRDC). It is believed to be endemic in U. S. cattle and is unique among the four known species of influenza virus.

Detailed explanation-3: -The human influenza A virus was discovered in 1933 soon after Shope succeeded in isolating swine influenza A virus in 1931. Since the discovery studies in the influenza have made immense progress and have contributed greatly to not only virology but also immunology and molecular biology.

Detailed explanation-4: -All influenza viruses consist of single-stranded RNA as opposed to dual-stranded DNA. The RNA genes of influenza viruses are made up of chains of nucleotides that are bonded together and coded by the letters A, C, G and U, which stand for adenine, cytosine, guanine, and uracil, respectively.