INFLUENZA A：Family Clustering of Avian Influenza A H5N1 - PMC

influenza a   influenza a adalah Surveillance for human cases of avian influenza has been intensified in recent months, perhaps resulting in the identification of less severe cases. Alternatively, more widespread laboratory testing may be associated with false-positive results. No evidence to date shows genetic reassortment between H5N1 and human influenza A viruses . Viruses

virus influenza a The influenza AH1N1pdm09 viruses belonged to clade 6B.1A.5a.2a, while the influenza AH3N2 viruses evolved from clade 3C.2a1b.2a.1a to 3C.2a1b.2a.2a.3a.1. Compared with the vaccine strain of the Northern Hemisphere of the current year, multiple amino acid substitutions and glycosylation sites changes were observed in the HA protein that most

influenza a To diagnose the flu, also called influenza, your healthcare professional does a physical exam, looks for symptoms of flu and possibly orders a test that detects flu viruses. The viruses that cause flu spread at high levels during certain times of the year in the Northern and Southern hemispheres