Human metapneumovirus in the preterm neonate: current perspectives

Area of Science:

• Pediatrics
• Virology
• Public Health

Background:

• Premature birth (<37 weeks gestation) affects ~11% of US births, increasing risks for chronic lung disease and respiratory conditions like bronchopulmonary dysplasia.
• Respiratory viruses are primary causes of acute respiratory illness (ARI) in preterm infants, leading to rehospitalization, increased healthcare costs, and long-term health issues.
• Human metapneumovirus (HMPV), a paramyxovirus related to RSV, is a leading cause of ARI globally, with prematurity being a key risk factor for severe disease.

Purpose of the Study:

• To highlight the significance of Human metapneumovirus (HMPV) in premature infants.
• To underscore the association between HMPV infection in infancy and long-term pulmonary complications such as asthma and recurrent wheezing.
• To address the limited data on HMPV prevalence in neonatal intensive care units (NICUs) and its role in nosocomial outbreaks.

Main Methods:

• Literature review and analysis of existing epidemiologic data on HMPV.
• Examination of HMPV's impact on preterm infants and its association with ARI and long-term pulmonary outcomes.
• Assessment of HMPV's role in hospital-acquired infections within NICU settings.

Main Results:

• HMPV is a common and significant cause of ARI in preterm infants, often requiring hospitalization.
• Infant HMPV infection is linked to an increased risk of developing asthma and recurrent wheezing.
• HMPV contributes to nosocomial outbreaks of ARI in healthcare facilities, including NICUs.

Conclusions:

• Human metapneumovirus (HMPV) is an important pathogen in premature infants presenting with acute respiratory symptoms.
• Healthcare providers should consider HMPV in the differential diagnosis for preterm infants with respiratory illness.
• Further research is needed on HMPV prevalence in NICUs and its long-term effects on preterm infants.