NY Updates Pet Import Rules to Guard Against New World Screwworm

Metallic green New World screwworm fly with red eyes near pale larvae on wood, inset shows a larva's head.

The New York State Department of Agriculture and Markets has revised its import restrictions for pets entering the state following the detection of the invasive New World Screwworm in Texas and New Mexico.

Under the updated order, dogs and cats from affected or suspected affected areas may enter New York if they have received an FDA-approved treatment within 14 days before arriving in the state. State officials said the change will allow rescue organizations to continue transporting pets while helping prevent the spread of the destructive parasite.

The remainder of the state’s import order remains in effect. Animals originating from an infested area must be examined by an accredited veterinarian, certified free of New World Screwworm infestation, and meet additional health and treatment requirements before entering New York. Domestic animals cannot be imported from an infested area until that area has been declared free of the parasite.

Agriculture Commissioner Richard Ball said the department continues to evaluate its policies to respond proactively to animal health threats while protecting New York’s agricultural industry.

New World Screwworm larvae feed on the living tissue of warm-blooded animals, posing a serious threat to livestock, pets and wildlife. In rare cases, the parasite can also affect humans. Untreated infestations can cause severe wounds, significant animal suffering and major economic losses.

State officials emphasized that, according to the U.S. Department of Agriculture, there are no food safety concerns, the nation’s food supply remains safe, and the current risk to animals and people in the United States is considered very low.

The Department of Agriculture and Markets is coordinating with the New York State Department of Health and the Department of Environmental Conservation to monitor the situation and prepare for any potential introduction of the parasite into the state.

Health Commissioner Dr. James McDonald said there have been no confirmed cases of New World Screwworm in animals or humans in New York, but added that preparedness is essential because of the potential threat to animal and human health.

The state is also urging livestock producers and pet owners to watch for possible signs of infestation, including draining or enlarging wounds and the presence of maggots or eggs, particularly around an animal’s navel, nose and ears.

Officials encourage anyone who suspects an infestation to contact a veterinarian immediately.

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