FDA Authorizes New Tool Against New World Screwworm
The FDA is adding another tool to the fight against New World screwworm, with potential relevance for both livestock and wildlife in California.
The agency has issued an Emergency Use Authorization for CLiK Extra wound spray, containing dicyclanil. The product may be used to help prevent New World screwworm infestations in cattle, sheep, goats, swine and camelids, as well as certain captive or captured wildlife, including deer, elk, bighorn sheep, American bison and Sonoran pronghorn.
The over-the-counter spray is applied on or around wounds, including those associated with birth or procedures such as ear tagging, castration, dehorning, tail docking or shearing.
CLiK Extra does not kill screwworm larvae. Instead, it works as an insect growth regulator, disrupting larval development and stopping the lifecycle before larvae can cause tissue damage.
The FDA says the authorization is for prevention only. If a wound is already infested, or an infestation develops after application, contact a veterinarian about treatment options.
CLiK Extra is not FDA-approved or conditionally approved. Its use is permitted specifically under this emergency authorization.
For more, visit https://www.fda.gov/news-events/press-announcements/fda-issues-emergency-use-authorization-drug-prevent-new-world-screwworm-multiple-species-including
