Articles related to EPIDEMIOLOGY

Each additional hour of daily digital screen exposure was associated with 21% higher odds of myopia in a 335,524-participant meta-analysis, with the steepest odds increase observed between 1 and 4 hours of daily exposure, though substantial heterogeneity and cross-sectional study designs precluded causal conclusions.

County-level analysis of nearly 5 million Medicare beneficiaries identified more than 10-fold geographic variation in late-onset epilepsy incidence, with insufficient sleep, heat index, and lack of vehicle access among the strongest area-level predictors.

A case-control study identified covert mortality nodavirus, previously known only in aquatic animals, in iris tissue of patients with persistent ocular hypertensive viral anterior uveitis, with exposure risk concentrated among those who handle or consume raw aquatic animals daily.

As of May 7, 2026, three passengers had died and additional suspected cases emerged aboard a cruise ship cluster linked to Andes hantavirus, the one strain documented to spread person-to-person.

For clinicians and patients alike, the message from this large registry-based analysis is clear: early pregnancy loss, whether induced or spontaneous, does not confer an elevated risk of subsequent breast cancer.

Cancer incidence rates increased for several cancer types in many of the countries studied; however, other than colorectal cancer, these increases occurred in both younger and older adults.