The Re-emergence of Human Metapneumovirus: Virus Classification, Characteristics, Mechanisms of Infection, Clinical Features, Diagnosis, Epidemiology, Prevention, and Treatment.

Publication date: Jun 01, 2025

The respiratory virus known as the human metapneumovirus (HMPV) was discovered for the first time in 2001 in the Netherlands. It is a ribonucleic acid (RNA) virus that belongs to the Paramyxoviridae family. It causes upper and lower respiratory tract infections (RTIs), especially in young children and the elderly. Although the majority of HMPV infections are resolved on their own, some infected infants, children, and elderly patients need to be hospitalized. Patients with underlying immunodeficiency diseases, transplant recipients, and those with other co-morbidities, such as chronic diseases, are more likely to develop complications from HMPV infections, such as pneumonia. The symptoms of HMPV infections are similar to those of other viral RTIs caused by respiratory syncytial virus (RSV), influenza viruses, and coronaviruses. Differential diagnosis and identification of the etiological agents responsible for RTIs are crucial for improved patient care. Concerns of the next pandemic have been fueled by the discovery of the novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the causative agent of the coronavirus disease-2019 (COVID-19) that caused the pandemic, and the recent advent of other viral diseases like mpox. In addition, the World Health Organization (WHO) has emphasized the importance of public health readiness, as many pandemics are expected to occur. In light of this and a recent increase in HMPV cases signifying its potential re-emergence, we tried to thoroughly examine and update information on origin, transmission, pathogenicity, clinical features, laboratory diagnosis, epidemiology, prevention, and treatment of HMPV.

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Concepts Keywords
Coronaviruses coronavirus disease 2019 (covid-19)
Elderly human metapneumovirus (hmpv)
Immunodeficiency pandemic
Laboratory re-emergence
respiratory tract infections

Semantics

Type Source Name
disease MESH Infection
disease IDO ribonucleic acid
disease MESH causes
disease IDO immunodeficiency
disease MESH morbidities
disease MESH chronic diseases
disease MESH complications
disease MESH pneumonia
disease MESH influenza
pathway KEGG Coronavirus disease
disease MESH COVID-19
disease MESH viral diseases
pathway REACTOME Reproduction
drug DRUGBANK Coenzyme M
disease MESH respiratory tract infections
disease MESH avian influenza
disease MESH mutation rates
disease MESH zoonotic infections
disease MESH measles
pathway KEGG Measles
disease MESH parainfluenza
disease MESH bronchiolitis
disease MESH premature birth
disease MESH COPD
disease MESH congenital heart diseases
disease MESH bronchitis
disease MESH airway obstruction
disease IDO replication
disease IDO host
pathway REACTOME Budding
disease IDO cell
disease IDO protein
disease MESH PRRs
disease IDO process
disease MESH asthma
pathway KEGG Asthma
drug DRUGBANK Cefaclor
disease IDO virulence
disease MESH death
disease MESH dyspnea
drug DRUGBANK Oxygen
disease MESH RSV infection
disease MESH seizure
disease MESH Premature infants

Original Article

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