With screwworms advancing northward into Mexico, veterinarians must prepare for the possibility of widespread infestations ...

As a result, the region’s fight against the spread of the New World Screwworm (NWS) is expected to take a hit. Minister of ...

On Nov. 22, Mexico’s Chief Veterinary Officer informed USDA about a confirmed case of New World screwworm (NWS) in Chiapas, near the Guatemala border. These fly larvae infest warm-blooded animals, ...

The New World screwworm fly was eradicated in the US in the mid-1960s, but a new sighting in southern Mexico has authorities in Texas on alert for a little insect that can do a lot of damage.

Without proper treatment, tooth infections can spread to other areas of the body, leading to serious and potentially life threatening complications. A tooth infection, or a tooth abscess ...

Last November, a Mexican official notified the U.S. Department of Agriculture (USDA) that a positive detection of New World screwworm had been detected in Mexico, triggering the suspension in ...

Sexually transmitted infections (STIs) usually pass from one person to another through sexual contact. Examples include chlamydia, crabs, and genital herpes. Treatment depends on the type of STI.

Drug-resistant infections occur when pathogens change in ways that render antimicrobial drugs ineffective. As a result, the pathogens survive and continue to spread. When infections are treatable with ...

The United States on Saturday reopened the door for Mexican cattle imports, which have been blocked since November due to screwworm cases. This is among factors that have recently supported cattle ...

An adult New World screwworm (NWS) fly, which is about the size of a common housefly (or slightly larger). Photo courtesy of USDA Animal and Plant Health Inspection Service (APHIS). Late last year, ...

The New World screwworm is the stuff of nightmares. Named for its habit of screwing into the living flesh of warm-blooded animals with its razor-sharp mouth hooks, they are maggots — the larvae ...

To protect U.S. livestock and other animals, APHIS halted shipments of Mexican cattle and bison in November 2024 after a positive detection of New World screwworm (NWS) in southern Mexico.