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Acquisition of human polyomaviruses in the first 18 months of life
Emerging Infectious Diseases
|January 28, 2015
Insights
Four human polyomaviruses (PyVs) were studied in infants. WU, KI, and Malawi PyVs may play a role in respiratory infections, typically acquired around one year of age.
Area of Science:
- Virology
- Pediatric Infectious Diseases
- Respiratory Health
Background:
- Human polyomaviruses (PyVs) are common viruses with diverse tissue tropisms.
- The role of specific PyVs in pediatric respiratory infections remains incompletely understood.
- Community-based birth cohorts provide valuable insights into early-life viral acquisition and impact.
Purpose of the Study:
- To investigate the presence and acquisition patterns of four specific human polyomaviruses (WU, KI, Merkel cell, and Malawi) in young children.
- To explore the potential association of these PyVs with respiratory infections in a community setting.
- To determine the age of acquisition for these viruses in early childhood.
Main Methods:
- Respiratory specimens were collected from a community-based birth cohort.
- Molecular methods were employed to detect the presence of WU, KI, Merkel cell, and Malawi polyomaviruses.
- Viral acquisition timing and association with respiratory symptoms were analyzed.
Main Results:
- The four investigated human polyomaviruses were detected in the respiratory specimens.
- Viral acquisition predominantly occurred around one year of age.
- Evidence suggests WU, KI, and Malawi PyVs may be associated with respiratory infections, unlike Merkel cell PyV.
Conclusions:
- WU, KI, and Malawi polyomaviruses are acquired in early childhood and may contribute to respiratory illness.
- Merkel cell polyomavirus does not appear to play a significant role in pediatric respiratory infections within this cohort.
- Further research is warranted to elucidate the pathogenic mechanisms of PyVs in respiratory disease.
Abstract:
We investigated the presence of 4 human polyomaviruses (PyVs) (WU, KI, Merkel cell, and Malawi) in respiratory specimens from a community-based birth cohort. These viruses typically were acquired when children were ≈1 year of age. We provide evidence that WU, KI, and Malawi, but not Merkel cell PyVs, might have a role in respiratory infections.
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