Original ResearchPublished 23 July 2026Multiple bovine papillomavirus types in squamous papillomas of the upper gastrointestinal tract of dairy cows from southern BrazilBruna Fonseca Matias · Michele Lunardi · Gabriela Donini Cesário · Ana Paula Frederico Rodrigues Loureiro Bracarense · Alice Fernandes Alfieri · Amauri Alcindo AlfieriFrontiers in Virologydoi 10.3389/fviro.2026.1871673