{"id":937,"date":"2026-06-04T04:38:57","date_gmt":"2026-06-04T04:38:57","guid":{"rendered":"https:\/\/reliablemovingcrews.com\/?p=937"},"modified":"2026-06-04T04:38:57","modified_gmt":"2026-06-04T04:38:57","slug":"flesh-eating-screwworm-confirmed-in-texas-calf-as-parasite-crosses-border-from-mexico","status":"publish","type":"post","link":"https:\/\/reliablemovingcrews.com\/?p=937","title":{"rendered":"Flesh-eating screwworm confirmed in Texas calf as parasite crosses border from Mexico"},"content":{"rendered":"<div><div><div><ul><li>Summary<\/li><li>Companies<\/li><\/ul><\/div><div><\/div><\/div><div>CHICAGO\/MEXICO CITY, June 3 (Reuters) &#8211; New World screwworm, a parasitic fly that eats warm-blooded animals alive, has been found in a calf in Texas, the U.S. Department of Agriculture said on Wednesday evening, exposing the nation&#8217;s cattle herd \u200bto a serious new threat.<\/div><div>A case was confirmed in a calf in La Pryor, Texas, a town about 30 miles (48 km) northeast of the U.S.-Mexico border &#8211; a blow \u200cto U.S. cattle ranchers who have been bracing for a domestic screwworm outbreak as the pest has advanced north through Mexico over the past year.<\/div><div>USDA Secretary Brooke Rollins said the case, the first in Texas since 1966, was the only confirmed infestation in the country.<\/div><div>The pest could further shrink the U.S. cattle herd, which is at its lowest level in 75 years. Tight supplies have already reduced beef production and driven prices to record highs for consumers.<\/div><div>The detection also threatens Texas&#8217; livestock industry, which \u200bcould face up to $1.8 billion in estimated economic losses if the pest spreads, and represents a setback for U.S. efforts that cost millions of dollars to keep the pest out, experts \u200bsaid.<\/div><div>Texas Agriculture Commissioner Sid Miller criticized USDA for allowing screwworm to reach the U.S.<\/div><div>&#8220;Instead of using every available tool, USDA moved too slowly and relied \u2060solely on a partial solution that takes years to fully implement,&#8221; he said.\nRollins said that the release of sterile flies was the most effective tool and that USDA had invested heavily in production.<\/div><div>Reuters \u200breported on Wednesday morning that samples of a suspected screwworm infestation at a ranch in La Pryor had been sent for testing to the federal government&#8217;s lab in Ames, Iowa. Chicago Mercantile Exchange feeder cattle \u200bfutures extended losses, ending 1.7% lower, with traders worried that confirmation of a U.S. case may reduce demand for beef.<\/div><div>Screwworms are parasitic flies whose females lay eggs in open wounds and mucous membranes on any warm-blooded animal. Once the eggs hatch, hundreds of screwworm larvae use their sharp mouths to burrow through living flesh, eventually killing their host if left untreated. They mostly spread through the movement of infested animals.<\/div><div>The fly can infest people and pets as well, but the \u200brisk to humans is low and human cases of screwworm are rare, experts said. The fly poses no food safety issues.<\/div><div>The USDA said it had halted movement of any animals in a 20-km (12.4-mile) \u200barea around the site of the detection in a bid to contain the parasite, released sterile screwworm flies in the area, implemented additional wildlife surveillance, and sent a response team to the area. Rollins also said that a \u200cplane was \u2060headed to South Texas with stockpiles of treatments for screwworm.<\/div><div>&#8220;Protecting our livestock industry is a national security issue of the utmost importance,&#8221; said Dudley Hoskins, a USDA under-secretary.<\/div><h2>IMPACT ON CATTLE SUPPLY, BEEF PRICES<\/h2><div>An extensive outbreak could deal a huge economic blow to ranchers in Texas, the biggest cattle-producing state, through livestock deaths, labor costs and medication expenses.<\/div><div>Washington has kept its border with Mexico closed to livestock imports for more than a year in an effort to prevent the parasite from reaching U.S. border states, spending millions of dollars to slow its advance through Mexico, investing in sterile fly production facilities, expanding trapping efforts and increasing \u200blivestock surveillance.<\/div><div>Mexico has confirmed 27,449 cases of screwworm \u200bsince November of 2024, with 2,094 cases classified \u2060as currently active. It has also increased livestock inspections and said that a sterile fly production plant in the country\u2019s south, which the U.S. helped fund, would be operating by the end of June.<\/div><div>The U.S. previously imported more than a million cattle from Mexico a year to fatten in feedlots and \u200bprocess into beef.<\/div><div>Infestations can be cured, but treatment involves removing hundreds of larvae and thoroughly disinfecting wounds, a time-consuming, pricey and labor-intensive process.<\/div><div>Screwworms \u200bhave been traveling north through \u2060Mexico from Central America, and are endemic in many countries in the Caribbean and South America. In August, the U.S. said a person who returned from El Salvador became the country&#8217;s first human case of travel-associated screwworm<svg><\/svg><span>, opens new tab<\/span>linked to the current outbreak.<\/div><div>The last outbreak in the U.S. border states in the 1960s decimated the local wildlife population and caused millions of dollars in damage to ranchers.<\/div><div>Screwworms were eradicated from the United States in the 1960s \u2060when researchers began \u200breleasing massive numbers of sterilized male screwworm flies that mate with wild female screwworms to produce infertile eggs.<\/div><div>A production facility \u200bfor sterile flies is not expected to open in Texas until late 2027.<\/div><div>On Wednesday, most-active August feeder cattle fell 5.80 cents to finish at 342.625 cents per pound. August live cattle futures fell 1.8 cents to 237.85 cents per pound. Shares of \u200bmajor meatpackers Tyson Foods (TSN.N)<svg><\/svg><span>, opens new tab<\/span> and JBS also fell.<\/div><div><address><div><div><noscript>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" alt=\"Cassandra Garrison\" class=\"wp-image-935\" src=\"https:\/\/reliablemovingcrews.com\/wp-content\/uploads\/2026\/06\/6260bf3aded8b39dfff4e4a5e9eeda2e.avif\"\/><\/figure>\n<\/noscript><\/div><div>Cassandra Garrison<\/div><\/div><div><ul><li><span><div><svg><title>Email<\/title><\/svg><\/div><\/span><\/li><li><span><div><svg><title>X<\/title><\/svg><\/div><\/span><\/li><li><span><div><svg><title>Instagram<\/title><\/svg><\/div><\/span><\/li><li><span><div><svg><title>Linkedin<\/title><\/svg><\/div><\/span><\/li><\/ul><\/div><\/address><address><div><div><noscript>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" alt=\"Heather Schlitz\" class=\"wp-image-936\" src=\"https:\/\/reliablemovingcrews.com\/wp-content\/uploads\/2026\/06\/1aeb31eb1564f1d76766bedc6d815441.avif\"\/><\/figure>\n<\/noscript><\/div><div>Heather Schlitz<\/div><\/div><div><ul><li><span><div><svg><title>Email<\/title><\/svg><\/div><\/span><\/li><\/ul><\/div><\/address><address><div><div><noscript>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"120\" alt=\"Tom Polansek\" class=\"wp-image-90\" src=\"https:\/\/reliablemovingcrews.com\/wp-content\/uploads\/2026\/05\/813eb724d5c5729fec11d44a1e183fe2.avif\"\/><\/figure>\n<\/noscript><\/div><div>Tom Polansek<\/div><\/div><div><ul><li><span><div><svg><title>Email<\/title><\/svg><\/div><\/span><\/li><li><span><div><svg><title>X<\/title><\/svg><\/div><\/span><\/li><li><span><div><svg><title>Linkedin<\/title><\/svg><\/div><\/span><\/li><\/ul><\/div><\/address><\/div><\/div><p>Read more <a href=\"https:\/\/reliablemovingcrews.com\/?p=933\">Oil falls as Lebanon and Israel agree to implement ceasefire<\/a><\/p><p>Read more <a href=\"https:\/\/reliablemovingcrews.com\/?p=930\">Israel and Lebanon agree to implement ceasefire<\/a><\/p><p>Read more <a href=\"https:\/\/reliablemovingcrews.com\/?p=928\">US Senate advances ICE bill as Democrats aim to make Trump a liability for Republicans<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>New World screwworm, a parasitic fly that eats warm-blooded animals alive, has been found in a calf in Texas, the U.S. Department of Agriculture said on Wednesday evening, exposing the nation&#8217;s cattle herd \u200bto a serious new threat.<\/p>\n","protected":false},"author":1,"featured_media":934,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-937","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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