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New World screwworm
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Situations
US screwworm reemergence and record measles surge
7 clusters · 26 sources · last updated
Latest: Texas horse infected with New World screwworm
In mid-2026, the U.S. faced a dual crisis involving a record measles surge of 2,295 cases—the highest since 1991—and the reemergence of the New World screwworm after a 44-year absence. The parasite, which moves north fro
New World screwworm re-emergence in the United States
3 clusters · 10 sources · last updated
Latest: United States releases 1 billion sterile flies to combat screwworm outbreak
The New World screwworm, a parasitic fly known as Cochliomyia hominivorax, has re-emerged in the United States after being eradicated in 1966. The parasite, which burrows into and consumes the living tissue of warm-blood
US-Mexico screwworm outbreak: containment and human impact
139 clusters · 448 sources · last updated
Latest: Horse smuggling threatens U.S. efforts to contain New World screwworm
The New World screwworm outbreak continues to impact the U.S.–Mexico border, with containment efforts facing new biosecurity challenges. While the USDA-APHIS has lifted the infested zone in New Mexico following a single
Mexico resumes livestock exports to US via Sonora
16 clusters · 130 sources · last updated
Latest: Livestock exports from Sonora to US delayed until September 8
Mexico’s sterile-fly campaign against the New World screwworm continues to expand. After releasing 2.5 million sterile flies in Parral, the program added 10,000 traps and intensified vehicle inspections in Puebla, traini
FDA emergency authorizations for screwworm prevention
2 clusters · 5 sources · last updated
Latest: FDA authorizes generic Bimectin injection to prevent screwworm in cattle
The U.S. Food and Drug Administration (FDA) has issued multiple Emergency Use Authorizations (EUAs) to combat New World screwworm infestations. In mid-August, the FDA authorized CLiK Extra, a wound spray that acts as an
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US feral hogs threaten farms and spark disease concerns
[BUSINESS] · 3 sources ·