1. Introduction The Influenza A virus subtype H5, commonly known as avian influenza or “bird flu,” is a highly pathogenic viral strain that primarily circulates among wild and domestic bird populations. While transmission to humans is relatively rare, when human infection does occur, it is characterized by profound respiratory distress, rapid clinical deterioration, and an … Read more
1. Introduction The Influenza A virus subtype H5N1 is a severely pathogenic respiratory virus that primarily circulates among avian populations. Since its initial identification in humans in 1997, it has garnered significant attention from the global medical and scientific communities due to its profound virulence and the substantial mortality rate associated with human infections. While … Read more
1. Introduction The Influenza A virus subtype H7N9 is a recently emerged and notably pathogenic avian influenza virus that represents a significant threat to global public health. First identified in human patients in China in 2013, this specific subtype possesses a deceptive biological characteristic: it circulates asymptomatically in poultry while causing profound, rapidly progressing, and … Read more