Parainfluenza Virus2 (HPIV2) Nucleoprotein (NP) (His Tag) Protein (Control)

The human parainfluenza virus (HPIV) is an enveloped, negative-sense, single-stranded RNA virus that belongs to the family of Paramyxoviridae.It is classified into four serotypes numbered from 1 to 4 (HPIV-1, HPIV-2, HPIV-3, and HPIV-4) . Serotype 4 can even be more subdivided into HPIV-4A and HPIV-4B.HPIV can cause both upper respiratory tract infection (URTI) and lower respiratory tract infection (LRTI) in children usually under the age of 5, adults, immunocompromised adults, and the elderly. It is one of the major causes of morbidity and mortality in infants worldwide.These respiratory viruses were first observed in the late 1950s when they were isolated from children with croup and were known as croup-associated viruses.