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

: Associated with a 142% increased risk .

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. : Associated with a 142% increased risk

: Associated with a 65% increased risk . such as the "delayed infection" hypothesis

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

: The study found no significant association between maternal infections and other types of childhood cancer, such as brain tumors or lymphoma, suggesting the risk is specific to leukemia. Context and Perspective