Related Experiment Video
Updated: Jul 5, 2025

Author Spotlight: Advancing Syphilis Research — Innovations in Treponema pallidum Cultivation and Genetic Engineering
Published on: January 24, 2025
Congenital syphilis: the re-emergence of a forgotten disease
Ana Isabel Foles1, Mariana Eiras Dias2, Melissa Figueiredo2
1Neonatology, Centro Hospitalar de Lisboa Ocidental EPE, Lisbon, Portugal anafoles.pediatria@gmail.com.
Abstract:
A preterm newborn presented at birth with generalised oedema, disseminated bullous and desquamative exanthema with palmoplantar involvement and hepatomegaly, admitted to the neonatal intensive care unit with severe multisystemic disease, haemodynamic instability and respiratory distress. The mother had a history of treated latent syphilis before pregnancy. Venereal Disease Research Laboratory screening was negative in the first trimester, titre 1:2 in second trimester and 1:32 in the third trimester, a result only available to the medical team at birth. The mother's rapid plasma reagin (RPR) titre was 1:64 at birth. The newbon's RPR titre was 1:256, confirming the diagnosis of early congenital syphilis. The newborn was treated with aqueous penicillin G, with clinical and laboratorial progressive recovery. Congenital syphilis is a preventable disease, but despite prenatal screening programmes, it remains a significant public health issue worldwide with high morbidity and mortality.
Related Concept Videos
Sexually Transmitted Infections
Immunodeficiency Diseases
There are three main causes of immunodeficiency...
Development of Immunocompetence
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Teratogenicity

