Man Eater

Lauren and JJ discuss a case report from 2000: myiasis in a
Thoroughbred gelding in Florida. Why was this case significant, and
why was a major government response necessary? This episode
includes a thorough review of myiasis caused by the new world
screwworm fly (Cochliomyia hominovorax). References: * United
States Department of Agriculture. (2025, September 3). Module 41:
New World Screwworm. National Veterinary Accreditation Program
Modules for Accreditation Renewal. Accessed September 14, 2025.
https://www.aphis.usda.gov/nvap/training-modules * United States
Department of Agriculture Animal and Plant Health Inspection
Service. (2025, August 24). New World Screwworm. Accessed September
14, 2025. USDA.
https://www.aphis.usda.gov/livestock-poultry-disease/cattle/ticks/screwworm
* The Panama-United States Commission for the Eradication and
Prevention of Screwworm Infestation in Livestock (COPEG). (2025).
Accessed September 14, 2025. COPEG. https://www.copeg.org/en/ *
United States Department of Agriculture. (2024, December 28).
Pesticides to potentially use against new world screwworm. Accessed
September 14, 2025.
https://www.aphis.usda.gov/sites/default/files/pesticides-for-nws.pdf
* United States Centers for Disease Control and Prevention. (2025,
August 27). About new world screwworm. CDC.
https://www.cdc.gov/new-world-screwworm/about/index.html * National
Public Radio. (2025, August 25). The U.S. confirms its first human
case of new world screwworm: what is it? NPR. Accessed September
14, 2025.
https://www.npr.org/2025/08/25/nx-s1-5515487/new-world-screwworm-us-human-case
* Beck, L. (2025, September 9). Veterinarians asked to be alert for
screwworm infestations. Veterinary Information Network. Accessed
September 14, 2025.
https://news.vin.com/default.aspx?pid=210&Id=12840615&f5=1
* Cutolo, A. A., Perrier, N., Menz, I., Thyssen, P., Silva, F. O.,
& Beugnet, F. (2021). Efficacy of afoxolaner (NexGard) on the
treatment of myiasis caused by the new world screwworm fly
Cochliomyia hominovorax (Diptera: Calliphoridae) in naturally
infested dogs. Veterinary Parasitology: Regional Studies and
Reports, 24(0), 100569. https://doi.org/10.1016/j.vprsr.2021.100569
* McCullough, C. (2025, May 27). USDA confirms reports of new world
screwworm in the U.S. are false. RFDTV. Accessed September 14,
2025.
https://www.rfdtv.com/usda-confirms-reports-of-new-world-screwworm-in-the-u-s-are-false
* Correia, T. R., Scott, F. B., Verocai, G. G., Souza, C. P.,
Fernandes, J. I., Melo, R. M. P. S., Vieira, V. P. C., &
Ribeiro, F. A. (2010). Larvicidal efficacy of nitenpyram on the
treatment of myiasis caused by Cochliomyia hominovorax (Diptera:
Calliphoridae) in dogs. Veterinary Parasitology, 173(1-2), 169-172.
https://doi.org/10.1016/j.vetpar.2010.06.019 * Muchiut, S., Miro,
M. V., Anziani, O., Nava, S., & Lifschitz, A. (2024). Failure
of doramectin and ivermectin in prevention Cochliomyia hominivorax
myiasis in a subtropical region: A pharmacokinetic-pharmacodynamic
study. Veterinary Parasitology, 334, 110384.
https://doi.org/10.1016/j.vetpar.2024.110384 * American Veterinary
Medical Association. (April 1, 2000). Screwworm turns heads in
Florida. Accessed September 14, 2025.
https://www.avma.org/javma-news/2000-04-15/screwworm-turns-heads-florida
* Alexander, J. L. (2006). Screwworms. Journal of the American
Veterinary Medical Association, 228(3), 357-367.
https://doi.org/10.2460/javma.228.3.357