Farmworkers in the US Southwest are confronting growing health dangers as the invasive New World screwworm spreads across cattle and wildlife. Ranchers and veterinarians warn that the parasite’s expansion is straining already limited rural healthcare systems, especially for undocumented workers who avoid clinics out of fear. The outbreak is driving up livestock‑care costs and forcing workers into closer contact with infected animals. Public‑health officials say the region lacks the medical infrastructure needed to manage a large‑scale infestation.
See "Farm workers at higher risk amid screwworm outbreak in US south-west", Melody Schreiber, The Guardian, June 24, 2026