The US border will reopen to Mexican cattle at one Arizona crossing on August 24, roughly a year after screwworm concerns shut that trade down, and the federal government is spending $25 million on a new facility to release sterile flies along the Southwest border.
Agriculture Secretary Brooke Rollins announced both decisions on July 29 during a visit to the Douglas Port of Entry, where she toured livestock inspection facilities with Arizona lawmakers and state agriculture officials. Douglas will be the first crossing to reopen under a phased plan, with the Santa Teresa and Columbus ports in New Mexico under consideration afterward.
For households, the connection is not the parasite. It is the meat case. The closure removed a steady supply of Mexican feeder cattle from a US beef market already running at record prices, and Arizona Governor Katie Hobbs, in a letter proposing the Douglas facility, warned that continued disruption could keep beef prices elevated and further strain household grocery budgets.
Why a Livestock Parasite Shows Up at the Grocery Store
New World screwworm does not infest meat, produce, or any food product, and there is no food safety issue for shoppers. The economic pathway runs through supply instead.
Mexican feeder cattle have long moved north to be finished in US feedlots. When that flow stops, the domestic herd absorbs the gap at a moment when US cattle numbers were already tight. Fewer animals entering the pipeline means less beef reaching retail months later, and prices reflect it. Reopening one port does not undo that quickly. Barchart senior analyst Darin Newsom told RFD-TV that the change in live head crossings is unlikely to move the market much on its own.
That is the honest framing. The reopening is a policy signal and a partial supply repair, not a price fix, and anyone expecting cheaper ground beef in September is likely to be disappointed.
What Changed Since MedicalDaily's Last Screwworm Report
MedicalDaily previously reported that US screwworm cases had reached 42 with most no longer under active treatment, focused on the case count and on wound care for people and animals inside the quarantine zone.
What is new is federal action rather than federal counting. Rollins said the crossing will reopen only because USDA has implemented one of the most rigorous livestock inspection protocols it has used. Every animal entering through Douglas will undergo multiple veterinary examinations, including inspection by USDA veterinarians before crossing. Animals that fail import requirements will be turned away, and a screwworm detection at the port would halt imports through it immediately.
USDA said Douglas was chosen first because Sonora maintains one of Mexico's strongest animal health systems and is considered the lowest-risk Mexican state for the parasite. The department also said the timeline depends on continued progress in Mexico and that it is prepared to pause the plan.
The case picture itself has not moved much. As of July 29, USDA's Animal and Plant Health Inspection Service had confirmed 42 US animal cases, 41 in Texas and one in New Mexico, with 11 still active, according to reporting on the APHIS dashboard. The most recent confirmation was a goat in Sutton County, Texas, on July 21.
What "Inactive" Means, and Why Local Vets Are Uneasy Anyway
The 31 inactive cases are worth reading carefully, because the word does not mean what most readers assume.
APHIS defines an inactive case as one where mitigation is no longer required. That includes animals that fully recovered with wounds healed, and it also includes situations where the animal died, and carcass management was handled appropriately. Inactive is an administrative status about response effort, not a recovery statistic.
Producers on the ground are also describing something the federal count does not capture. Brooks County veterinarian Dr. Michael Vickers told RFD News that while confirmed numbers remain low, he saw a double-take in reported cases in the matter of a week in late July. That is an account of reports reaching a local practice, not confirmed USDA cases, and the two figures should not be merged. Confirmed US cases rose from 34 in early July to 42 by month's end, which is an increase but not a doubling.
Who Actually Faces Risk, and What Households Should Do
The people at genuine risk are narrow and identifiable: livestock producers, ranch workers, veterinarians, hunters, and pet owners inside or near the Texas quarantine counties, particularly anyone handling animals with open wounds.
The CDC says the risk to the US public remains very low and that there have been no locally acquired human infestations. The only confirmed US human case since the regional resurgence was in a traveler who returned from El Salvador in August 2025. Across Central America and Mexico, however, more than 185,000 animal cases and 2,175 human cases have been reported, which is why surveillance continues.
Practical steps are simple and apply mainly to people spending time outdoors in affected areas. The CDC advises keeping any open wound clean and covered no matter how small, wearing long sleeves and pants, using an EPA-registered insect repellent, and treating clothing and gear with products containing 0.5 percent permethrin.
Anyone who sees or feels larvae in a wound or in the nose, mouth, eyes, ears, or genital area should contact a health care provider immediately and should not attempt removal. Other warning signs include an unexplained painful sore that will not heal, and foul odor or bleeding at the site. Livestock owners should inspect animals daily and report suspected cases to their state animal health official.
Households outside the quarantine area have no reason to change routines, and nobody needs to avoid beef.
What Happens Next
The Douglas reopening is scheduled for August 24. USDA will work with the Arizona Department of Agriculture to select a site for the dispersal facility, with construction potentially beginning within months. Whether the Santa Teresa and Columbus ports follow depends on how Douglas performs and on continuing risk assessments.
The confirmed development is that one cattle crossing reopens on a set date under expanded inspection, alongside a $25 million commitment to sterile fly capacity. The people most affected are ranchers and animal owners in South and West Texas, and shoppers watching beef prices. The most reasonable action for households is to keep wounds covered if working outdoors in affected counties and to report suspected animal cases promptly. The central uncertainty is whether reopening under inspection holds, because a single detection at Douglas would close it again.
Developing Story Timeline
July 29, 2026: USDA announced the Douglas Port of Entry will reopen to Mexican cattle on August 24 and committed $25 million to an Arizona sterile fly dispersal facility.
July 21, 2026: Most recent confirmed US case, a goat in Sutton County, Texas.
June 3, 2026: USDA confirmed the first US animal case of the current outbreak, in Texas.
Frequently Asked Questions
What did USDA announce? That the Douglas, Arizona, Port of Entry will reopen to Mexican cattle imports on August 24 under expanded inspection, and that $25 million will fund a sterile fly dispersal facility in Arizona.
Is beef safe to eat? Yes. Screwworm does not infest meat or any food product. The economic effect runs through cattle supply, not food safety.
How many US cases are there? USDA confirmed 42 animal cases as of July 29, with 41 in Texas and one in New Mexico. Eleven remained active.
Does inactive mean the animal recovered? Not necessarily. USDA classifies a case as inactive when mitigation is no longer needed, which covers both full recovery and appropriate handling of an animal that died.
Can people get screwworm? Rarely, and only when a fly lays eggs in an open wound or body opening. No locally acquired US human cases have been reported, and the CDC describes public risk as very low.
What should I do if I work outdoors in an affected county? Keep wounds clean and covered, wear long sleeves and pants, use an EPA-registered repellent, and treat clothing with 0.5 percent permethrin.
When should someone seek care urgently? Immediately, if larvae are seen or felt in a wound or body opening, or if a wound is painful, foul-smelling, or will not heal. Do not attempt removal.
