New Study Strengthens Evidence That Infections In Pregnant Mothers Raise Risk For Leukemia In Babies - Mr Validity May 2026

Experts like Jian-Rong He note that these findings do warrant immediate changes to clinical practice. Instead, they highlight the importance of:

While these percentages appear high, researchers emphasize that the of a child developing leukemia remains extremely low. For context, the study identified only 1,307 leukemia cases among 2.2 million children—an incidence rate of roughly 0.06% . Experts like Jian-Rong He note that these findings

Current scientific theories, such as the "delayed infection" hypothesis , suggest leukemia may be a two-step process: a genetic "hit" occurs in utero (potentially triggered by maternal inflammation), followed by a second "hit" from common infections in early childhood. the study identified only 1

: Mothers with an STI were significantly more likely to have a child develop leukemia. such as the "delayed infection" hypothesis