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Postneonatal screening for congenital syphilis
Insights
Congenital syphilis is resurging, and current screening may miss cases. Infants born to high-risk mothers might need re-screening at 4-8 weeks due to delayed seroconversion.
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- Congenital syphilis incidence is rising to epidemic levels.
- Current screening protocols for congenital syphilis may be insufficient.
- Maternal risk factors include poor prenatal care and illicit drug use.
Purpose of the Study:
- To highlight the limitations of current congenital syphilis screening.
- To advocate for revised screening policies for infants at high risk.
Main Methods:
- Case series describing three infants with congenital syphilis.
- Review of maternal risk factors and serological testing at birth and 2 months.
Main Results:
- All infants and mothers were initially seronegative at birth.
- Infants became seropositive for syphilis by 2 months of age.
- Maternal risk factors were present in all cases.
Conclusions:
- Current screening may fail to detect congenital syphilis promptly.
- Re-screening infants of high-risk mothers at 4-8 weeks is recommended.
- Policy review for congenital syphilis screening is warranted.
Abstract:
The incidence of congenital syphilis has recently reached epidemic proportions. With the resurgence of this important clinical entity, currently recommended screening procedures may be inadequate. We describe three cases that highlight the limitations of these screening procedures. All these infants had associated maternal risk factors for congenital syphilis, such as poor prenatal care and illicit drug use. All the infants and mothers were seronegative for syphilis at the time of birth but the infants became seropositive at 2 months of age. These cases support the need to reexamine current screening policies. In addition to prenatal and at-delivery screenings for congenital syphilis, it may be appropriate to screen infants born to high-risk mothers at 4 to 8 weeks of age.