Second Case of New World Screwworm Confirmed in Horse in New Mexico

Albuquerque Santa Fe, NM, September 17, 2026 —

A second instance of New World screwworm has been identified in a horse located in Grant County, New Mexico. The confirmation marks a recurrence of the parasitic infestation in the region.

New World screwworm (Cochliomyia hominivorax) is a species of fly whose larvae are parasitic. The larvae feed on live flesh of mammals. Infestations can affect livestock and wildlife.

The specific details surrounding this second case, including the timeline of its discovery, the condition of the affected horse, and any containment or eradication efforts underway, were not immediately available. The initial case and its associated details were also not provided in the summary.

Grant County is situated in southwestern New Mexico. The presence of screwworm requires careful monitoring and potential intervention to prevent further spread. Information regarding the precise location within Grant County or the owner of the animal was not disclosed.

Further information regarding the extent of the outbreak, the species affected, and the preventative measures being implemented by relevant agricultural or veterinary authorities is anticipated. Officials typically provide updates on such situations to inform the public and stakeholders in the agricultural community.

Story summarized from the original created by Jordan Honeycutt on www.krqe.com, see more information here.

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