Related Experiment Video
Updated: Jun 26, 2026

Modeling Ascending Vaginal Infection, Preterm Birth, and Neonatal Morbidity in Mice
Published on: October 10, 2025
[Infant mortality and births in the 19th and early 20th centuries]
1p.e.treffers@hccnet.nl
Abstract:
During the 19th century infant mortality was very high in the Netherlands, particularly in the provinces of South Holland and Zeeland (up to 300 per 1000 live births and more), and also in parts of North Brabant and Limburg. In the northern provinces (Drenthe, Groningen and Friesland) mortality was lower. Where breast-feeding was infrequently given (in rural areas of South Holland, Zeeland and from the 1850s also in North Brabant), infant mortality was relatively high. In the northern provinces many mothers breast-fed their infants. The fertility rate of married women was high, especially in those parts of the country where breast-feeding was infrequent. From 1875-1880 fertility rate and infant mortality decreased: the so-called demographic transition. Improved social conditions and employment opportunities played an important role in this as did the vertical social mobility: limitation of the size of families gave children opportunities to climb the social ladder.
More Related Videos
Related Concept Videos
Life Tables
Applications of Life Tables
Population Growth
Regression Toward the Mean
Development of the Oral Microbiota
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...

