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Human metapneumovirus

Jennifer E Schuster1, John V Williams

  • 1Vanderbilt University School of Medicine, Nashville, Tennessee.

Pediatrics in Review
|December 4, 2013
PubMed

Insights

Human metapneumovirus (MPV) causes significant respiratory infections in children, with symptoms resembling RSV. Early diagnosis and potential prophylactic treatments are crucial for high-risk infants.

Area of Science:

  • Pediatric Infectious Diseases
  • Virology
  • Immunology

Background:

  • Human metapneumovirus (MPV) is a significant pathogen responsible for a substantial burden of pediatric respiratory illnesses.
  • Clinical manifestations of MPV infection often mimic those of Respiratory Syncytial Virus (RSV), complicating diagnosis.

Observation:

  • MPV is a primary cause of both upper and lower respiratory tract infections in children, including asthma exacerbations, bronchiolitis, and pneumonia.
  • Bacterial superinfections can complicate MPV disease.
  • The typical age of first infection is between 6 to 12 months, with near-universal seropositivity by school age, though reinfection can occur.

Findings:

  • Morbidity and mortality associated with MPV are disproportionately higher in premature infants, immunocompromised individuals, and those with pre-existing cardiopulmonary conditions.
  • Commercially available diagnostic tests, particularly reverse transcriptase–PCR (RT-PCR), are widely used for MPV detection.

Implications:

  • The lack of extensive clinical studies necessitates further research into the efficacy of prophylactic and therapeutic interventions.
  • Recombinant virus vaccines and monoclonal antibodies show potential for preventing or treating MPV infections, especially in vulnerable populations.

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