ReviewPublished 14 September 2026Molecular and ecological determinants of viral emergence in tropical regions: a One Health perspective integrating host–pathogen interactions, immune dysregulation, translational diagnostics, and epidemiological surveillanceMd Nazmul Hossen · Md Shamim Uddin · Md Imran Hossain · Md Shahriar Haque Noman · Tarin NaherFrontiers in Tropical Diseasesdoi 10.3389/fitd.2026.1849794