Houston Officials Monitor New World Screwworm Threat as Texas Declares Disaster

A growing public health concern has prompted Texas leaders to take action as the New World screwworm inching toward the U.S.–Mexico border raises alarms. With the parasite detected in northern Mexico, Gov. Greg Abbott has issued a statewide disaster declaration to coordinate resources and prepare for a potential incursion. Officials in Houston are closely monitoring the situation as the threat moves north.

The New World screwworm is a parasitic fly known for infesting warm-blooded animals, including livestock, pets, and in rare cases, people. The fly’s larvae can cause severe tissue damage, making early detection and rapid response essential. While no cases have been confirmed in Texas, the proximity of recent detections in Mexico has spurred proactive measures.

Why Houston Residents Should Be Aware

Houston has a dense population, a large pet community, and a significant role in Texas agriculture and veterinary care. A potential spread of the screwworm could place added pressure on regional animal shelters, ranches, and veterinary clinics. City officials emphasize that preparedness now can prevent widespread emergencies later.

The Texas Animal Health Commission is expanding surveillance, especially in southern border counties. Should any cases appear, containment would require swift intervention, including quarantine zones and treatment protocols for affected animals. Houston’s animal rescue organizations are also staying alert, as the parasite can pose a serious health threat to outdoor pets and wildlife.

What’s Next for Texas and Houston

State and federal agencies are coordinating to strengthen monitoring and deploy resources as needed. Public health leaders are asking residents to watch for unusual wounds in pets or livestock and report any concerns to veterinarians.

Experts emphasize that while the situation is serious, it remains manageable with early detection. Houston residents do not need to take immediate action beyond staying informed, practicing good animal care, and following updates from health officials.

This article is a summary of reporting by Houston Public Media. Read the full story here.