Currently, the New World Screwworm (NWS) fly is not present in the United States and there are no cases of NWS in the United States. However, awareness and updates are a helpful resource to the ZAHP community.
Veterinarians should report any suspicious cases to their state animal health official and APHIS office.
The following is a compiled list of resources. These materials are intended to support teams in reviewing information and considering options for their animal care practices.
Current Situation – CDC
Webinar Recording for Animal Industry – USDA APHIS
Animal Drugs for New World Screwworm – FDA
The Ins and Outs of Extra-Label Drug Use in Animals: A Resource for Veterinarians – FDA
New World Screwworm: Information for Veterinarians – FDA
As part of these resources, the following are fly strike (myiasis) that may be useful for team discussions. Two products currently indexed for fly strike include:
– F10 Antiseptic Wound Spray with Insecticide (MIF 900-010)
– F10 Antiseptic Barrier Ointment with Insecticide (MIF 900-011)
While these products are not labeled specifically for New World Screwworm (NWS), they are listed for fly strike/myiasis in general. Additional details can be found in The Index of Legally Marketed Unapproved New Animal Drugs for Minor Species on the FDA website.
This information is shared for awareness and discussion purposes only and should not be interpreted as a treatment recommendation.