Pneumovirinae

Pneumovirinae
Virus classification
Group:	Group V ((−)ssRNA)
Order:	Mononegavirales
Family:	Paramyxoviridae
Subfamily:	Pneumovirinae

Pneumovirinae is a virus subfamily. It is one of the subfamilies of the virus family Paramyxoviridae. The other subfamily in Paramyxoviridae is Paramyxovirinae. All viruses in this family are called paramyxoviruses. They have enveloped virions (virus particles) that vary in size from 150 to 200 nm in diameter. The nucleocapsid consisting of a protein shell and viral nucleic acids has a helical symmetry.

Taxonomy

There are many genera for both pneumovirinae and paramyxovirinae. The better known subfamily is paramyxovirinae because it includes viruses such as: Rubulavirus, avulavirus, and morbillivirus. These contain the mumps, Newcastle disease, and measles in humans. A virus with the subfamily pneumovirinae is called a pneumovirus. These viruses are responsible for the serious respiratory syncytial virus disease in human infants. A pneumovirus is the genus right below the subfamily of pneumovirinae. It consists of pathogens that work to target the upper respiratory tract within their specific host species. Every pneumovirus is different in that it changes depending upon its host. There are a range of diseases that come are in the genus pneumovirus. Pneumovirus is the more common genus from the subfamily pneumovirinae.

Human metapneumovirus

There is another virus that was first introduced to the pneumovirinae subfamily in 2001 called Human metapneumovirus. Human metapnuemovirus (hMPV) is a negative single-stranded RNA virus that is the second most common cause of lower respiratory infection in young children. Pneumovirus is intermediate in size between other Paramyxoviridae and the Orthomyxoviridae. Cytoplasmic inclusions are considerably more dense than those of other viruses in the family. Human metapneumovirus is very similar to your common cold; it is an upper respiratory infection. It will typically occur in the winter and early spring. This specific infection is most common in children, especially under the age of five. Common symptoms include runny nose, congestion, sore throat, cough, headache, and fever, which can be seem in a cold. It will typically go away after a few days. If this is seen in people over 75 then there is a cause for concern as it can turn to pneumonia.