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Neonatal oropharyngeal infection by HPV in our area
Jesús Joaquín Hijona Elósegui1, María Soledad Sánchez Torices2, Ana Cristina Fernández Rísquez1
1Servicio de Obstetricia y Ginecología, Hospital Universitario Materno-Infantil, Complejo Hospitalario de Jaén, Jaén, Spain.
Insights
Neonatal oropharyngeal infection by human papillomavirus (HPV) is common after vaginal birth but usually clears within two years. Transvaginal vertical transmission is the primary infection route, though persistent HPV carriage in infants requires further study.
Area of Science:
- Virology
- Neonatal Health
- Public Health
Background:
- Human papillomavirus (HPV) is primarily known as a sexually transmitted infection.
- Newborns can acquire HPV during the perinatal period via incompletely understood mechanisms.
Purpose of the Study:
- To investigate the frequency and mechanisms of neonatal oropharyngeal HPV infection.
- To determine the persistence of HPV colonization in infants up to age two years.
Main Methods:
- Prospective, observational study of vaginally born neonates with HPV-positive mothers.
- Detection of HPV in amniotic fluid, cord blood, and neonatal oropharyngeal secretions.
- Microbiological follow-up of colonized infants for 24 months.
Main Results:
- Oropharyngeal HPV colonization prevalence at birth was 58.24%.
- Over 24 months, 94.34% of infants cleared HPV, while 5.66% showed persistent colonization.
Conclusions:
- Neonatal oropharyngeal HPV colonization is frequent but typically self-limiting.
- Transvaginal intrapartum vertical transmission is the main route of neonatal HPV infection.
- The clinical significance of persistent HPV carriage in neonates remains undetermined.
Introduction:
Although infection by human papillomavirus (HPV) is mainly considered a sexually transmitted disease, newborns exposed to the virus in the perinatal period can also be infected through mechanisms that are not yet fully understood. The aim of our study was to increase our understanding of neonatal oropharyngeal infection by HPV, trying to establish its frequency, mechanisms of infection and persistence through age 2 years.
Material And Methods:
We conducted a prospective, observational and descriptive study in a cohort of neonates born vaginally whose mothers carried HPV in the lower genital tract at the time of delivery. Tests for detection of HPV in amniotic fluid, venous cord blood and oropharyngeal secretions were performed in every neonate, and we conducted microbiological follow-up of infants colonized by HPV up to age 2 years.
Results:
The prevalence of oropharyngeal colonization at birth was 58.24%. In the 24-month follow-up, the proportions of clearance and persistence of HPV in the oropharynx were 94.34% and 5.66%, respectively.
Conclusions:
The results of this case series suggest that neonatal oropharyngeal colonization by HPV, while frequent in the postpartum period, is usually a self-limited process, and the main mechanism of infection transvaginal intrapartum vertical transmission. Although colonization in most neonates is transient and asymptomatic, the clinical significance of persistent carriage remains unknown.
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