Articles related to EPIDEMIOLOGY

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.

Epidemiological analysis demonstrates that resource-stratified prevention measures including tobacco control, vaccination programs, and environmental policies could substantially reduce global cancer burden, though implementation remains suboptimal due to insufficient political commitment.

SEER registry analysis revealed striking birth cohort effects with appendiceal adenocarcinoma rates more than quadrupling in the 1985 birth cohort compared to the 1945 reference group.