First report of natural infestation by Ostertagia ostertagi in water buffalo in Argentina: First report of natural infestation by Ostertagia ostertagi in water buffalo in Argentina. CienVet [Internet]. 2026 Apr. 14 [cited 2026 Jul. 29];28:1-9. Available from: https://cerac.unlpam.edu.ar/ojs/index.php/veterinaria/article/view/9586