Mexico recorded 6,703 cases of animals infested with New World screwworm as of September 13 since the start of the outbreak in November of last year. That was compared to 5,086 confirmed cases during the previous period, which ended August 17.

Mexico sees 32 per cent jump in flesh-eating screwworm cases since August as cases move north

U.S. criticizes Mexico’s handling of screwworm near border
U.S. Agriculture Secretary Brooke Rollins on Thursday said Mexico has not adequately enacted protocols to curb the spread of New World screwworm.

Mexico confirms case of New World screwworm in northern state, USDA says
Mexico confirmed a new case of New World screwworm in Sabinas Hidalgo, Nuevo Leon, less than 70 miles (113 km) from the U.S.-Mexico border, the U.S. Department of Agriculture said.

Mexico reports 53 per cent increase in flesh-eating screwworm cases since July
U.S. border has been closed to Mexican cattle since July due to New World screwworm cases
Mexico has recorded 5,086 cases of flesh-eating screwworm in animals as of August 17, a 53 per cent jump from the number of cases reported in July, according to Mexican government data seen by Reuters on Wednesday.

U.S. cattle ranchers criticize government for delayed reporting of human screwworm case
Human screwworm case was Maryland resident who recovered, state health department says
The patient with the first human infestation of travel-associated New World screwworm in the United States has recovered from the flesh-eating parasite, and there was no sign of transmission to other people or animals, the Maryland Department of Health said on Monday. Ranchers criticized a lack of transparency about the case.

U.S. confirms nation’s first travel-associated human screwworm case connected to Central American outbreak
USDA criticized by cattle producers for failing to take timely measures to prevent screwworm from entering the U.S.
The U.S. Department of Health and Human Services on Sunday reported the first human case in the United States of travel-associated New World screwworm, a flesh-eating parasite, from an outbreak-affected country.

U.S. livestock: Feeders set fresh highs, hogs mixed
Chicago cattle futures ended Tuesday mostly up, with feeder contracts setting fresh highs. Hogs were mixed.

USDA to build Texas facility to fight flesh-eating screwworm
Sterile flys to keep infection out of U.S.
The U.S. Department of Agriculture will spend up to $750 million to build a sterile fly production facility in Texas to fight the flesh-eating livestock pest New World screwworm, USDA Secretary Brooke Rollins said on Friday, Aug. 15.

U.S. again halts cattle imports from Mexico over flesh-eating screwworms
The flesh-eating livestock pest New World screwworm has advanced closer to the U.S. border with Mexico, the U.S. Department of Agriculture said, prompting Washington to block imports of Mexican cattle just days after it allowed them to resume at a port of entry in Arizona.

Mexico to open sterile fly plant to combat screwworm in 2026
Mexico's government said on Monday that it has started to build a $51 million (C$69.8 million) facility in the country's south as part of an effort to combat screwworm, a pest that has disrupted Mexican exports of cattle to the United States.