GFP Labelled Human Parainfluenza Virus Type 1

Human parainfluenza virus type 1 (HPIV-1) is an important cause of respiratory tract infections, especially in young children, immunocompromised individuals, and the elderly. HPIV-1 belongs to the family Paramyxoviridae and is an enveloped, negative-sense, single-stranded RNA virus. Clinically, HPIV-1 is most notorious for causing croup (laryngotracheobronchitis), especially in children aged 6 months to 3 years. Croup is characterized by a distinct barking cough, hoarseness, and wheezing, which can be alarming to parents and may require medical evaluation. In addition to croup, HPIV-1 can cause bronchiolitis, pneumonia, and other upper and lower respiratory tract infections.

Green fluorescent protein (GFP)-tagged human parainfluenza virus type 1 (HPIV-1) is a powerful tool in virology and molecular biology. By tagging HPIV-1 with GFP, researchers can visually track the virus life cycle and interactions within host cells, providing insights into its pathogenesis. Originally derived from the Aequorea victoria, GFP is a bioluminescent protein that emits bright green fluorescence when exposed to UV or blue light. This fluorescence allows real-time monitoring of viral infection and replication processes in living cells using fluorescence microscopy.