{"id":136640,"date":"2025-05-08T09:18:54","date_gmt":"2025-05-08T09:18:54","guid":{"rendered":"https:\/\/quixnet.net\/wpinstance\/flesh-eating-parasite-with-sharp-mouth-hooks-prompts-action-from-us-usa-today\/"},"modified":"2025-05-08T09:18:54","modified_gmt":"2025-05-08T09:18:54","slug":"flesh-eating-parasite-with-sharp-mouth-hooks-prompts-action-from-us-usa-today","status":"publish","type":"post","link":"https:\/\/quixnet.net\/wpinstance\/flesh-eating-parasite-with-sharp-mouth-hooks-prompts-action-from-us-usa-today\/","title":{"rendered":"Flesh-eating parasite with 'sharp mouth hooks' prompts action from US – USA Today"},"content":{"rendered":"

While the U.S. and Mexico<\/a> may still be hashing out the tariff situation<\/a>, the countries are again united on one common enemy: the New World Screwworm.
A parasite, the New World Screwworm, is actually a fly. Female screwworm flies lay eggs in wounds or body openings of mammals, including cows, deer, birds, pets, and even humans, that can lead to a sometimes fatal infection.
Here in the U.S., the Agriculture Department eradicated the NWS parasite in 1966 by releasing sterile male flies and pupae to eventually lead to infertile screwworm flies, according to the USDA’s Animal and Plant Health Inspection Service<\/a>. But a risk of it returning remains because the parasite is found in both Central America and South America, and it could spread north into Mexico.
In November 2024, America halted imports of Mexican livestock after the country alerted the U.S. to a NWS detection in a cow at a inspection checkpoint close to the Mexico border with Guatemala. Subsequently, the USDA increased sterile fly deliveries and supported additional surveillance programs, which led to livestock imports restarting in February 2025.
But recently, relations became strained in April when Mexico authorities began curtailing 7-day flights of USDA planes dispersing sterile flies and imposing import duties on “critical aviation parts, dispersal equipment, and sterile fly shipments,” U.S. Agriculture Secretary Brooke Rollins<\/a> said in a letter to Esteban Moctezuma Barraga\u0301n, Mexico’s ambassador to the U.S. Ambassador, dated April 26, 2025.
Mexico avoided another U.S. livestock ban last week by reaching a deal to allow additional flights and to waive custom duties, Rollins said April 30.
\u201cI am happy to share Mexico has continued to partner in emergency efforts to eradicate the New World Screwworm,” Rollins said in a press release. \u201cThis pest is a devastating threat to both of our economies, and I am pleased to work together with Mexico in good faith to protect the livelihoods of our ranchers and producers who would have been hurt by this pest.”
Adult screwworm flies are similar to \u2013 or slightly larger than \u2013 the common housefly, but they have orange eyes, a metallic blue or green body, and three dark stripes along their backs, according to the USDA’s Animal and Plant Health Inspection Service<\/a> (APHIS).
The parasite gets its name from how the larvae’s resulting maggots, which as they feed on an animal will burrow, or screw, into the wound or opening, creating “extensive damage by tearing at the hosts\u2019 tissue with sharp mouth hooks,” APHIS says.
After Mexico reported an infected cow, APHIS warned states along the southern border to watch their livestock and pets for signs of an NWS parasite. APHIS and the Texas Parks and Wildlife Department<\/a> listed some warning signs in wildlife, birds and pets:
This story was updated to fix an inaccuracy.<\/em>
Mike Snider is a reporter on USA TODAY\u2019s Trending team. You can follow him on Threads, Bluesky, X and email him at<\/em>mikegsnider<\/em><\/a> \u00a0& \u00a0<\/em>@mikegsnider.bsky.social<\/em><\/a> \u00a0& \u00a0<\/em>@mikesnider<\/em><\/a> & msnider@usatoday.com<\/em>
What’s everyone talking about?<\/strong> Sign up for our trending newsletter to get the latest news of the day<\/a><\/p>\n

source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

While the U.S. and Mexico may still be hashing out the tariff situation, the countries are again united on one common enemy: the New World Screwworm.A parasite, the New World Screwworm, is actually a fly. Female screwworm flies lay eggs in wounds or body openings of mammals, including cows, deer, birds, pets, and even humans, […]<\/p>\n","protected":false},"author":1,"featured_media":136641,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[10],"tags":[],"class_list":["post-136640","post","type-post","status-publish","format-standard","has-post-thumbnail","category-world","entry"],"_links":{"self":[{"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/posts\/136640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/comments?post=136640"}],"version-history":[{"count":0,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/posts\/136640\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/media\/136641"}],"wp:attachment":[{"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/media?parent=136640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/categories?post=136640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quixnet.net\/wpinstance\/wp-json\/wp\/v2\/tags?post=136640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}