Current situation on the New World screwworm outbreak in Central America and Mexico.
New World screwworm (NWS) is a species of parasitic flies that feed on live tissue.
Fact sheets and other products about New World screwworm
For Professionals
Interim considerations for New World screwworm for public health departments
Use the case report form to notify CDC of human cases of New World screwworm.
Clinical Resources
- Information for healthcare providers on a training for New World Screwworm.
- New World screwworm (NWS) myiasis is typically a disease of livestock but can also affect humans.
- Prompt reporting of human cases is essential for an effective response to New World screwworm.
Featured
Signs and symptoms of New World Screwworm and how to prevent it. Available in English and Spanish.
Information on how employers with outdoor workers can help protect them from New World screwworm.
How outdoor workers can avoid getting New World screwworm. Available in English and Spanish.
Factsheet on identifying NWS for printing and posting at homeless services locations
Ag producers: protect workers when using insecticides for NWS.
How agriculture producers can help stop New World screwworm. Available in English and Spanish.
Life cycle, identifying features, and contact info for NWS. Available in English and Spanish.