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[SITUATION] · [ACTIVE]

105 clusters · 363 sources · 85 days · First seen 3 months ago · Last updated about 23 hours ago

Categories: HEALTH · INTERNATIONAL · BUSINESS · POLITICS

Invasive fly outbreaks and sterile‑fly response in Texas, Mé

Overview

The New World screwworm outbreak that began in Chiapas in late 2024 continues to spread. By early July 2026 more than 30 domestic animal cases were recorded in Texas and New Mexico, including two dogs. Veterinarians advise wound inspection, use of prescription flea‑and‑tick products that kill larvae, and prompt treatment. New reports from late July confirm additional infestations. In Mexico officials identified cases in dogs, cattle, horses and a homeless person in Matehuala, attributing the spread to a recent pause in sterile‑fly releases and increased cross‑border livestock movement. In the United States the Texas Animal Health Commission listed the parasite in 13 counties and 24 establishments, and New Mexico confirmed its first stray‑dog case in Lea County, leading to movement restrictions and USDA alerts for pet owners. Mexico inaugurated a binational sterile‑fly production facility in Metapa de Domínguez, Chiapas on 27 June 2026. Funded with roughly $60 million shared by Mexico and the United States, the plant will scale to release up to 100 million sterile flies per week, supplementing the existing Panama operation and supporting livestock trade across the border. The invasive pasture mealybug now occupies 70 Texas counties, threatening up to 35 million acres of rangeland. With no registered pesticide, management relies on early detection, grazing or hay harvest to reduce canopy density, and equipment sanitation. USDA continues to fund sterile‑male programs and monitor Hawaii for any spill‑over. In early July the USDA confirmed the first U.S. screwworm case in a three‑week‑old calf in Zavala County, Texas, bringing the total to 33 infections across Texas and New Mexico affecting cattle, goats and a pet dog. Officials stressed that the parasite poses an animal‑health, not a food‑safety, risk; infected animals are quarantined, inspected and treated before any meat enters the food supply.

Timeline

about 23 hours ago

[HEALTH] 3 sources
Texas livestock report new world screwworm outbreak
USDA reports 33 New World screwworm infections in Texas and New Mexico livestock, the first U.S. case since the 1960s, and says the parasite poses no food‑safety risk.
1 day ago

[HEALTH] 12 sources
Mexico intensifies fight against gusano barrenador parasite
Mexico expands sterile‑fly releases and regional actions as the gusano barrenador parasite spreads to 24 states, raising human cases to 489 and prompting trade‑related livestock measures.
5 days ago

[HEALTH] 3 sources
Yucatán launches phase‑two trap program to curb worm infestation harming livestock and humans
Yucatán expands its worm‑infestation control with 625 blue traps in 13 areas, addressing 2,259 animal cases and 36 human miasis infections, including one death.
5 days ago

[INTERNATIONAL] 2 sources
Mexico opens Chiapas sterile‑fly factory to curb cattle grub disease
Mexico’s new Chiapas sterile‑fly factory, funded by Mexico and the U.S., will produce up to 100 million sterile flies weekly to control the cattle grub fly and help reopen the U.S.–Mexico livestock border.
5 days ago

[HEALTH] 4 sources
New World screwworm infestations reported in Texas, New Mexico and Mexico
New World screwworm cases have emerged in Mexico and across Texas and New Mexico, prompting alerts and monitoring in the US and Hawaii.
6 days ago

[HEALTH] 4 sources
Texas faces dual invasive insect threats to cattle and pasture lands
Texas contends with a fast‑spreading pasture mealybug threatening cattle pastures and a resurging New World screwworm endangering livestock and pets, prompting urgent control measures.
7 days ago

[HEALTH] 12 sources
Mexico launches sterile‑fly release in Tamaulipas to combat screwworm
Mexico will begin releasing sterile flies from Tamaulipas, produced at a new Chiapas plant, to eradicate the screwworm affecting cattle; up to 100 million flies weekly aim to lift US trade bans.
7 days ago

[HEALTH] 4 sources
Screwworm infestations surge in Panama, United States and Guatemala
Panama reports 55 human screwworm cases, the US confirms 32 livestock infections, and Guatemala inspects over 245,000 animals to curb the parasite.
8 days ago

[HEALTH] 2 sources
Mexico reports hundreds of animal worm cases and dengue decline in Tabasco
Hidalgo logged 942 livestock screwworm cases and 14 human infections (one unrelated death); Tabasco saw 414 dengue cases, dropping to fourth nationally, with intensified vector control.
8 days ago

[HEALTH] 2 sources
Public health agencies train vector‑surveillance teams in Mexico and Spain
Mexico and Spain conducted training exercises to boost surveillance and response to screwworm and tiger‑mosquito threats, enhancing public‑health preparedness.
9 days ago

[HEALTH] 3 sources
Cochliomyia hominivorax worm infestation spreads across Mexico and reaches the United States
A re‑emergent screwworm fly infestation in Mexico, with over 28,000 animal cases, has spread to Texas and New Mexico, prompting border livestock restrictions and renewed biocontrol efforts.
10 days ago

[HEALTH] 3 sources
Texas livestock threatened by invasive pasture mealybug and New World screwworm
Invasive pasture mealybug and New World screwworm are spreading across Texas, threatening forage and the $41 billion cattle industry, with limited control measures and ongoing containment efforts.
11 days ago

[HEALTH] 4 sources
Veracruz reports surge in screw-worm fly (myiasis) cases
Veracruz has 70 confirmed screw‑worm fly (myiasis) cases, the second‑highest in Mexico, prompting health alerts and treatment guidance.
12 days ago

[HEALTH] 2 sources
Four Human Myiasis Cases Confirmed in Querétaro, Mexico
Querétaro's health secretariat reports four human cases of screw‑worm myiasis in 2026, urging prompt medical care and heightened surveillance.
13 days ago

[HEALTH] 2 sources
Coahuila health officials report first human myiasis case, warn of wound care
Coahuila confirms Mexico's first human myiasis case in an 84‑year‑old vet, urging wound care; Michoacán health officials warn of rain‑related mosquito risks and advise preventive measures.
15 days ago

[BUSINESS] 5 sources
US and Mexico Expand Sterile Fly Program to Fight New World Screwworm
US and Mexico are scaling up a sterile‑fly program to contain the New World screwworm, with a new USDA facility in Mexico set to release 30 million flies by July amid 16 U.S. cases and potential billions in liv
17 days ago

[INTERNATIONAL] 2 sources
Mexico and United States inaugurate sterile‑fly plant in Chiapas
Mexico’s President Claudia Sheinbaum and U.S. officials inaugurated a binational sterile‑fly plant in Chiapas that will produce 100 million insects weekly to fight the cattle grub worm, boosting livestock‑herd
17 days ago

[INTERNATIONAL] 30 sources
Claudia Sheinbaum opens US‑Mexico sterile‑fly plant in Chiapas
President Sheinbaum opened a US‑Mexico sterile‑fly plant in Chiapas to fight the livestock‑killing screwworm, with $144 M joint investment, and delivered housing that adds ~1 % to Mexico’s GDP.
18 days ago

[HEALTH] 2 sources
US livestock face rising New World Screwworm cases as Mississippi reports none
USDA reports 20 New World Screwworm detections, all in Texas and New Mexico, while Mississippi says none and readies a response plan for livestock.
19 days ago

[INTERNATIONAL] 21 sources
Mexico‑US Inaugurate Sterile Fly Plant in Chiapas to Combat Screwworm
Mexico and the U.S. opened a $61 M sterile‑fly plant in Chiapas on 27 June 2026, aiming to produce 100 M sterile flies weekly to curb the screwworm outbreak affecting livestock and trade.
19 days ago

[HEALTH] 5 sources
New World Screwworm Detected in Texas Threatens Livestock and Pets
USDA confirms the first U.S. New World screwworm case in Texas, risking livestock, dairy supply and pet health; sterile‑male releases may be used to contain the fly.
19 days ago

[HEALTH] 9 sources
Mexico and United States intensify response to screwworm outbreak in livestock
Mexico’s screwworm cases surged 83.5% to 30,500 by June, spreading into Texas where 20 US animal infections were confirmed; joint Mexico‑US investments fund new sterile‑fly plants and emergency measures.
21 days ago

[HEALTH] 2 sources
Veracruz legislators under scrutiny and worm outbreak threatens cattle and public health
Veracruz lawmakers face probe over a 3 million‑peso resource use while a screwworm outbreak adds 34 human cases, two deaths and threatens cattle trade, prompting US and Mexican health actions.
21 days ago

[HEALTH] 5 sources
Texas sees 16 New World Screwworm cases in livestock
USDA reports 16 New World screwworm cases in Texas and New Mexico livestock, urging vigilance to prevent spread.
22 days ago

[BUSINESS] 4 sources
Mexico cattle sector suffer price slump as worm-driven border closure bites
Mexican cattle producers face price drops as the cattle worm shuts the U.S. live‑cattle border, while packaged meat exports rise 30% after shifting to domestic finishing and a new sterile‑fly plant is slated to
22 days ago

[HEALTH] 8 sources
US-Mexico Joint Inspection Targets Cattle Borer Worm in Coahuila
US and Mexican authorities conduct joint inspections in Coahuila to fight the cattle borer worm amid rising cases in Texas and Mexico, including human infections, and outline long‑term eradication plans.
23 days ago

[HEALTH] 8 sources
New World screwworm cases rise to 15 in Texas
USDA reports 15 New World screwworm cases in Texas; sterile‑fly releases underway, with facilities planned in Mexico and Texas to avert a potential $1.8 billion livestock loss.
23 days ago

[BUSINESS] 2 sources
US ground beef prices surge 20% amid screwworm outbreak and trade deal uncertainty
US ground beef prices have jumped over 20% due to a screwworm outbreak, drought and USMCA renewal uncertainty, prompting shoppers to shift to cheaper proteins.
25 days ago

[HEALTH] 2 sources
Veracruz reports surge in dengue cases and leads nation in human myiasis infections
Veracruz logged 354 dengue cases, one death, and a drop from 2025, while also leading Mexico with 69 human myiasis infections, prompting health warnings.
25 days ago

[HEALTH] 2 sources
Coahuila Remains Free of Human Myiasis Cases Amid National Surge
Coahuila reports no human myiasis cases, only two infected dogs, while Mexico records 295 cases and two deaths; joint health‑rural actions focus on animal monitoring and wound hygiene.
25 days ago

[HEALTH] 2 sources
Texas New World Screwworm Outbreak Triggers State Website and Shelter Safeguards
Texas governor launches a new screwworm information website as the state battles a New World screwworm outbreak, while shelters adopt tighter inspections, parasite treatments and face quarantine and interstate‑
26 days ago

[HEALTH] 3 sources
Mexican livestock parasite outbreak deemed safe for meat consumption
Mexico says meat from cattle infected with the barrenador worm remains safe after treatment, while rising animal and human cases spur lawmakers to demand stronger federal and state parasite control.
26 days ago

[HEALTH] 6 sources
Veracruz reports 69 human cases of botfly (myiasis) in 2026
Veracruz logged 69 botfly myiasis cases in 2026, the highest state count, with no deaths; Mexico totals 412 cases and two deaths nationwide.
27 days ago

[BUSINESS] 4 sources
USDA launches $105 million program to curb New World Screwworm in U.S. livestock
USDA funds $105 M for 40 projects, including drones and sterile flies, to fight New World Screwworm after 11‑12 cases in Texas and New Mexico; horse owners receive guidance and Arkansas tightens animal‑movement
28 days ago

[HEALTH] 2 sources
New World Screwworm Reappears in US, Prompting Veterinary Alerts and Beef Industry Concerns
USDA reports six New World Screwworm cases in Texas/New Mexico, prompting veterinary alerts and a costly government response amid modest beef‑price concerns.
28 days ago

[BUSINESS] 2 sources
US Beef Prices Surge as Screwworm Outbreak and USMCA Trade Talks Heighten Risks
US beef prices have risen over 20% as a screwworm outbreak spreads from Mexico, while USMCA trade talks create import uncertainty; USDA invests $105 M in bio‑security to contain the threat.
28 days ago

[HEALTH] 2 sources
Mexico logs 295 human screwworm cases in 2026, sterile‑fly plant delayed
Mexico's health ministry reports 295 human screwworm infections in early 2026, chiefly in Veracruz, with two deaths, while a sterile‑fly plant in Chiapas is 75% complete but not yet operational.
28 days ago

[HEALTH] 6 sources
USDA allocates $105 M to fight New World screwworm outbreak
USDA has allocated $105 M to 40 projects, including Texas A&M research, AI drone partnerships, and veterinary resources, to contain New World screwworm cases in Texas and New Mexico, while ranchers and PA/NJ ag
about 1 month ago

[HEALTH] 2 sources
New World screwworm parasite resurges in US livestock
USDA reports 11 New World screwworm cases in Texas and New Mexico, prompting intensified surveillance and sterile‑fly releases to protect livestock and prevent spread to Europe.
about 1 month ago

[HEALTH] 2 sources
New World screwworm prompts US emergency drug approval and Colorado movement restrictions
The FDA approved emergency use of nitenpyram for New World screwworm in pets, and Colorado imposed strict animal‑movement inspections to block the parasite’s spread after recent Texas and New Mexico cases.
about 1 month ago

[BUSINESS] 4 sources
New World screwworm outbreak threatens Texas cattle industry
Texas monitors a New World screwworm resurgence with nine livestock cases; USDA declares disaster, California tightens animal entry rules, and a sterile‑fly facility opens to curb the threat to cattle and beef.
about 1 month ago

[HEALTH] 2 sources
State of Mexico calls for extra funds to battle livestock botfly outbreak
State of Mexico deputy Javier Cruz seeks more funding to combat a cattle botfly, citing nine active cases and a total of 289 across 40 municipalities, with coordination extending to neighboring states.
about 1 month ago

[HEALTH] 2 sources
US screwworm outbreak threatens Texas cattle industry
A screwworm fly outbreak in Texas and New Mexico has infected six cattle, prompting USDA and CDC emergency actions and plans to boost sterile‑fly releases to curb spread.
about 1 month ago

[BUSINESS] 2 sources
US Agriculture Secretary Brooke Rollins denies aid cuts linked to screwworm resurgence
US Agriculture Secretary Brooke Rollins said aid cuts did not trigger the screwworm outbreak in Texas and New Mexico, noting USDA staff rose from 10 to over 120 and warning of possible multi‑billion‑dollar C‑c
about 1 month ago

[HEALTH] 3 sources
US detects Barren Worm in Texas, prompting Mexico to halt live cattle imports
USDA reports a bovine screwworm case in Texas; Mexico suspends live cattle imports, citing illegal cattle smuggling and disease risk, as experts warn of billions‑dollar losses.
about 1 month ago

[HEALTH] 9 sources
USDA Mobilizes Against New World Screwworm Outbreak in Texas and New Mexico
USDA confirms New World screwworm in Texas and New Mexico, creates quarantine zones, releases sterile flies, fast‑tracks treatments and FDA authorizes emergency drug for pets.
about 1 month ago

[HEALTH] 2 sources
US CDC launches emergency response to screwworm fly outbreak in livestock
The US CDC activated a Level 3 emergency response after detecting the New World screwworm fly in cattle, a Texas goat and a New Mexico dog, coordinating with the USDA to monitor and contain the parasite.
about 1 month ago

[BUSINESS] 4 sources
Minnesota Beef Prices Face Potential Rise Amid Texas Screwworm Outbreak
Texas’s New World screwworm outbreak may push up Minnesota beef prices, though local supply could limit the impact.
about 1 month ago

[HEALTH] 2 sources
Xalapa pet worm infestation threatens stray animals
Protectors in Xalapa report a surge in screwworm myiasis in stray dogs and cats, warning that untreated open wounds can kill animals within hours.
about 1 month ago

[POLITICS] 6 sources
US Agriculture Secretary Rollins addresses New World screwworm outbreak
US Agriculture Secretary Brooke Rollins reported six screwworm cases, said the outbreak is under control, and noted a $1.3 bn USDA response, while a Trump official blamed Biden’s immigration policies for the re
about 1 month ago

[HEALTH] 4 sources
New World screwworm resurfaces in US Southwest, prompting statewide response
USDA reports a second New World screwworm case in New Mexico after Texas, linking spread to illegal cattle smuggling. Sterile‑fly releases and state alerts aim to contain a threat that could cost the beef trade
about 1 month ago

[HEALTH] 2 sources
Texas Gov. Greg Abbott Declares Statewide Disaster Over Screwworm Outbreak in Cattle
Gov. Greg Abbott declared a Texas disaster after New World screwworm was found in two calves, prompting cattle movement bans and a federal sterile‑fly eradication plan; ERCOT expects record power demand, the Secretary of State resigns, and groups seek to restore the Texas Dream Act.
about 1 month ago

[HEALTH] 5 sources
USDA Leads Coordinated Fight Against New World Screwworm in Texas
USDA and Texas partners are executing a five‑prong plan and sterile‑insect releases to contain New World screwworm, following five U.S. cases including a new calf infection in La Salle County, Texas.
about 1 month ago

[BUSINESS] 2 sources
USDA bans all live animal exports to Mexico over screwworm outbreak
USDA halted all live animal exports to Mexico after screwworm cases were found in Texas and New Mexico, curbing West Texas feedlots while opening meat export chances for Mexican ranchers.
about 1 month ago

[HEALTH] 2 sources
Screwworm infestations reported in Mexico and United States
Screwworm cases have been confirmed in a dog in Durango, Mexico, and in livestock and a dog in Texas and New Mexico, prompting quarantine zones and cross‑border health alerts.
about 1 month ago

[HEALTH] 2 sources
US expands sterile‑fly program as New World screwworm resurges in Texas and New Mexico
USDA reports five New World screwworm cases in Texas and New Mexico and ramps up sterile‑fly releases, AI monitoring, and a trial of a genetically engineered male‑only strain.
about 1 month ago

[HEALTH] 2 sources
New World screwworm outbreak spreads across Mexico and the United States
USDA confirmed multiple New World screwworm cases in Texas and New Mexico, while Mexico reports over 2,000 active cases, prompting intensified sterile‑fly releases across both countries.
about 1 month ago

[HEALTH] 2 sources
US Halts Livestock Exports to Mexico Over Screwworm Outbreak
The US USDA has suspended all live animal exports to Mexico after detecting screwworm larvae in Texas and New Mexico, halting cattle, horses, sheep, goats, pigs and other species and risking supply disruptions
about 1 month ago

[HEALTH] 8 sources
US USDA ramps up response to New World screwworm outbreak in Texas
USDA confirmed four screwworm cases in Texas and launched quarantines, sterile‑fly releases, and other measures as the parasite threatens livestock and could keep beef prices high.
about 1 month ago

[HEALTH] 2 sources
Nuevo León records second human screwworm (myiasis) case
Mexico’s health ministry reports a second human screwworm case in Nuevo León, raising the state’s total to two as the country reaches 397 cases nationwide, with two deaths reported.
about 1 month ago

[HEALTH] 6 sources
Texas Deploys Sterile Flies to Counter New World Screwworm Threat
Texas officials, led by Gov. Greg Abbott, deploy sterile flies and activate emergency measures to combat a new New World screwworm outbreak in livestock.
about 1 month ago

[HEALTH] 2 sources
USDA Confirms First U.S. Cases of New World Screwworm in Dogs
USDA reports the first U.S. dog case of New World screwworm in New Mexico, adds two more cases, and notes industry response efforts.
about 1 month ago

[BUSINESS] 2 sources
Texas declares disaster as New World screwworm returns, threatening cattle industry
Texas declares disaster after a New World screwworm was found near the Mexico border, the first U.S. case since 1966, threatening the cattle industry with billions in losses; officials cite cuts to a monitoring
about 1 month ago

[HEALTH] 2 sources
Canada Blocks Texas Livestock Imports Over Screwworm Outbreak
Canada imposes temporary livestock import bans from Texas after a second screwworm case, citing animal health risks; impact on Canadian cattle limited.
about 1 month ago

[HEALTH] 13 sources
New World Screwworm Confirmed in Texas and New Mexico, Prompting Emergency Measures
USDA confirmed five New World screwworm cases in Texas and New Mexico, leading to disaster declarations, emergency animal‑movement rules and a large sterile‑fly release program to protect the cattle industry.
about 1 month ago

[HEALTH] 10 sources
USDA confirms four New World screwworm cases in Texas and New Mexico
USDA confirmed four New World screwworm cases in Texas and New Mexico, affecting cattle, a goat and dogs, prompting emergency quarantines, sterile‑fly releases and cost estimates up to $1.9 billion.
about 1 month ago

[BUSINESS] 3 sources
Canada bans Texas cattle imports over screwworm outbreak
Canada has temporarily banned live cattle imports from Texas after two screwworm cases were confirmed near the Mexico border, prompting quarantine and a Texas state of emergency.
about 1 month ago

[BUSINESS] 2 sources
Texas New World screwworm cases spur USDA sterile‑fly response
Four New World screwworm cases in Texas prompt USDA to expand sterile‑fly production and build a $750 M breeding facility, with Governor Abbott urging faster construction to protect the $113 B cattle industry.
about 1 month ago

[HEALTH] 3 sources
USDA detects New World Screwworm in Texas calf, prompting regional response
USDA confirmed New World Screwworm in a Texas calf, the first US case in decades, prompting sterile‑fly releases and a Missouri response plan to protect livestock.
about 1 month ago

[HEALTH] 7 sources
Texas New World screwworm reappears, USDA imposes quarantine and releases sterile flies
USDA confirms four New World screwworm cases in Texas, the first since the 1960s, and launches quarantine, movement bans and a sterile‑fly program to protect the cattle industry.
about 1 month ago

[HEALTH] 4 sources
Canada bans Texas cattle imports over screwworm outbreak
Canada temporarily bans Texas livestock imports after New World screwworm larvae were detected in calves, applying to animals from Texas within 21 days of border crossing.
about 1 month ago

[HEALTH] 2 sources
Texas declares disaster as New World screwworm outbreak prompts Canada livestock ban
A second New World screwworm case in Texas leads Governor Abbott to declare a disaster, enforce a 12‑mile quarantine, and prompts Canada to ban recent Texas livestock imports.
about 1 month ago

[HEALTH] 3 sources
Warble Fly Outbreak Prompts Texas Disaster Declaration and Local Action
Texas declares a disaster after a screwworm fly is found in a calf, prompting quarantine and sterile‑fly releases; meanwhile a Mexican town demands mayoral action to control the same pest among stray dogs.
about 1 month ago

[BUSINESS] 5 sources
Texas declares emergency over screwworm parasite threatening cattle
Texas declares emergency after confirming screwworm fly in cattle, mobilizing resources, sterile‑fly releases and a new production plant to protect its $12 million‑head beef industry.
about 1 month ago

[HEALTH] 3 sources
Texas Governor Abbott pushes rapid construction of sterile screwworm fly facility
Gov. Greg Abbott urges 24/7 construction of a $750 M sterile screwworm fly facility near Edinburg to protect the $113 B U.S. cattle industry after a Texas case, with USDA support and a parallel Mexican plant.
about 1 month ago

[HEALTH] 2 sources
New World screwworm parasite reappears in Texas, US, prompting large‑scale eradication effort
A New World screwworm parasite reappeared in Texas, prompting USDA‑led quarantines and a sterile‑fly release program to protect the US livestock industry from potential billion‑dollar losses.
about 1 month ago

[BUSINESS] 3 sources
US detects New World screwworm in Texas cattle, first case in a decade
USDA reports New World screwworm larvae in a Texas calf, the first US case in a decade. Quarantine, sterile‑fly releases, and emergency drugs aim to prevent a $1.8 billion hit to the struggling beef industry.
about 1 month ago

[BUSINESS] 11 sources
Texas screwworm outbreak prompts disaster declaration and trade bans
USDA confirmed a second New World screwworm case in Texas; Governor Abbott expanded disaster declaration, Canada banned Texas livestock imports, and sterile‑fly releases aim to contain potential $1.8 billion‑d
about 1 month ago

[HEALTH] 2 sources
Screwworm infestations rise in Puebla and Tlaxcala, Mexico
Mexico’s SENASICA reports 23 active screwworm cases in Puebla’s Cuetzalan and four active cases across three Tlaxcala municipalities, urging livestock owners to monitor and report infestations.
about 1 month ago

[BUSINESS] 2 sources
New World screwworm parasite detected in Texas cattle
USDA reported a second New World screwworm case in a Texas calf, set a 20 km quarantine, released sterile flies, and warned of $1.8 bn potential losses for the beef industry.
about 1 month ago

[BUSINESS] 4 sources
New World screwworm fly detected in south Texas, raising threat to US cattle industry
USDA confirmed two New World screwworm fly cases in south Texas, the first US detections since 1966, prompting a quarantine and border livestock restrictions to protect the $113 billion cattle industry.
about 1 month ago

[HEALTH] 15 sources
Texas declares emergency as screwworm fly resurfaces after 60 years
Texas declared an emergency after the screwworm fly reappeared – the first U.S. case in 60 years – prompting quarantines, sterile‑fly releases and a $1.8 billion risk; Mexico expanded its control program and a
about 1 month ago

[HEALTH] 2 sources
Screwworm parasite reappears in Texas, sparking cattle‑industry alarm
A screwworm larva, first seen in US livestock since 1966, was found in a Texas calf, prompting industry cost warnings and mixed federal‑state responses.
about 1 month ago

[BUSINESS] 2 sources
US cattle industry faces first screw‑worm fly case in Texas since 1966
US officials confirmed the first New World screw‑worm fly case in Texas since 1966, triggering a 20‑km quarantine, declines in cattle futures and stocks, and a sterile‑fly release program to protect the $113 b
about 1 month ago

[BUSINESS] 4 sources
US Detects New World Screwworm in Texas Calf, Cattle Futures Jump Over 3%
USDA reports first Texas screwworm case since 1966, prompting a >3% rise in feeder cattle futures and warnings of up to $1.8 bn in potential losses.
about 1 month ago

[HEALTH] 4 sources
Mexican Deputy Urges Stronger Sanitary Controls After Texas Worm Detection
Mexican deputy Arturo Medina calls for urgent federal action and tighter border controls after the first Texas case of the livestock‑killing stem‑borer worm, citing economic threats to Chihuahua’s cattle sector
about 1 month ago

[HEALTH] 2 sources
US detects New World screwworm parasite in Texas cattle
USDA confirmed a New World screwworm case on a calf in Texas near the Mexican border, the first since 1966. A 20‑km quarantine, sterile‑male releases, and movement bans aim to prevent up to $1.8 billion in herd
about 1 month ago

[BUSINESS] 2 sources
Texas screwworm case lifts Zoetis and Elanco animal‑health stocks
A Texas screwworm case boosted Zoetis and Elanco stocks, with shares up 4% and 2% and options volume soaring 20‑fold, amid FDA‑approved treatments and cross‑border livestock risk.
about 1 month ago

[BUSINESS] 2 sources
US cattle industry hit by parasite outbreak, first case since 1966
A screw‑worm fly was found in a Texas calf, the first US case since 1966, prompting a 20‑km quarantine, market drops for meat stocks, and a $1.8 bn loss estimate for Texas ranchers.
about 1 month ago

[HEALTH] 28 sources
Texas reports first New World screwworm case in 60 years, USDA acts
A New World screwworm was found in a Texas calf – the first U.S. case since 1966. USDA imposed a quarantine, ramped up sterile‑fly releases and canine detection, while Canada halted Texas livestock imports.
about 1 month ago

[HEALTH] 2 sources
USDA confirms new world screwworm in Texas cattle near Mexico border
USDA confirmed a new world screwworm case in a Texas calf, launched quarantine and sterile‑fly measures, and warned of potential $1.8 bn cattle losses if it spreads.
about 1 month ago

[HEALTH] 3 sources
USDA Detects New World Screwworm Parasite in Texas Cattle
USDA confirmed New World screwworm larvae in Texas cattle, initiating a 20 km quarantine, sterile‑fly releases, and emergency treatments to avert a costly livestock outbreak.
about 1 month ago

[HEALTH] 14 sources
USDA confirms first New World screwworm case in Texas cattle
USDA reports first New World screwworm case in Texas, found in a 3‑week‑old calf in Zavala County, prompting quarantine, sterile‑fly releases and heightened border controls amid regional outbreaks.
about 1 month ago

[HEALTH] 15 sources
USDA confirms New World screwworm in Texas calf, initiates emergency response
USDA confirmed the first New World screwworm case in a Texas calf since the 1960s, imposing a 20‑km quarantine, releasing sterile flies and warning of possible $1‑2 billion cattle losses.
about 1 month ago

[HEALTH] 2 sources
Mexico reports surge in screw‑worm infestations affecting humans and cattle
Mexico reports up to 300 human screw‑worm (miasis) cases in Guerrero and a first suspected case in Orizaba, with livestock infections prompting a halt to cattle exports to the US.
about 1 month ago

[INTERNATIONAL] 4 sources
New World Screwworm detected in Mexican sheep near US border
A New World Screwworm was found in a Mexican sheep 50 km from the U.S. border, raising fears of a $1.8 billion hit to Texas cattle and higher beef prices.
about 1 month ago

[HEALTH] 9 sources
Mexico ramps up sterile‑fly releases to fight screwworm in livestock
Mexico expands a sterile‑fly program to combat screwworm in cattle, with initial 60 million flies insufficient for all regions, while a university steps up livestock surveillance amid nearly 2,000 cases.
about 2 months ago

[HEALTH] 3 sources
US warns of New World Screwworm threat near Texas border
US Customs warns Texas of New World Screwworm near the border after USDA finds the parasite in a Mexican sheep 31 miles away, posing a risk of up to $1.8 bn in cattle losses.
about 2 months ago

[HEALTH] 36 sources
Mexico ramps up fight against screwworm as cases grow in livestock, pets, and humans
Mexico is intensifying measures against the screwworm parasite after thousands of livestock cases and dozens of human infections are reported across several states.
about 2 months ago

[HEALTH] 5 sources
Sonora Government Launches Livestock Disease Drill and Popular Food Kitchen Funding
Sonora staged a cattle worm drill and opened a 2026 food kitchen funding program for vulnerable residents.

Sources

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