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Yucatán Adds 39 Screwworm Cases as Nuevo León Toughens Penalties and Entry Rules

Federal-state teams provide free treatment with on‑ranch follow‑up to contain livestock infestations.

Overview

  • In the past week, Yucatán confirmed 39 new animal infections across 15 municipalities, lifting the state total to 587.
  • Tizimín accounted for 15 of the latest cases and Panabá reported five, with single or double cases in Temax, Valladolid, Río Lagartos, Chankom, Ucú, Tzucacab, Baca, Espita, Ticul, Mérida, Calotmul, Izamal and Temozón.
  • The outbreak spans cattle, pigs, sheep, horses and dogs, with infestations linked to wounds from barbed wire, bat bites and ear‑tagging.
  • Seder and Senasica are offering no‑cost treatments, training producers and deploying specialized veterinarians in coordination with local rancher associations and municipal governments.
  • Nuevo León warned feedlots and livestock service providers that concealing cases can cost permits or lead to criminal consequences, and agreed with industry on ivermectin dosing 72 hours pre‑arrival and doramectin upon entry, with immediate reporting and denouncements pledged.