FDA Issues Emergency Use Authorization for Drug to Prevent New World Screwworm in Multiple Species, Including Sheep, Cattle, Goats, and Swine

The EUA allows the use of CLiK Extra, a dicyclanil topical suspension, to be applied on or around wounds to prevent myiasis caused by New World screwworm (NWS). This is the first EUA for an animal drug targeting NWS, which is a devastating parasitic infestation that can cause severe tissue damage and death in livestock. The authorization covers multiple species, including sheep, cattle, goats, and swine, and is intended to support rapid response efforts during the current NWS outbreak. The decision underscores the critical need for prevention tools in veterinary medicine and may be followed by further regulatory actions or expanded access.