USDA confirms virulent Newcastle disease in a second commercial chicken flock in California

USA - The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) confirmed virulent Newcastle disease in a second commercial poultry flock in California. The latest case is in a commercial layer flock in Riverside County. This finding is part of an outbreak in southern California that began in May 2018 in backyard exhibition birds
calendar icon 9 January 2019
clock icon 3 minute read

Virulent Newcastle disease is not a food safety concern. No human cases of Newcastle disease have ever occurred from eating poultry products. Properly cooked poultry products are safe to eat. In very rare instances people working directly with sick birds can become infected. Symptoms are usually very mild, and limited to conjunctivitis and/or influenza-like symptoms. Infection is easily prevented by using standard personal protective equipment.

APHIS is working closely with the California Department of Food and Agriculture to respond to the finding, limit the disease’s spread in commercial poultry, and then eradicate it. Federal and State partners are conducting additional surveillance and testing in the area, and are working with nearby commercial farms to increase biosecurity to prevent additional disease spread.

It is essential that all bird owners follow good biosecurity practices to help protect their birds from infectious diseases. These include simple steps like washing hands and scrubbing boots before and after entering a poultry area; and cleaning and disinfecting tires and equipment before moving them off the property.

In addition to practicing good biosecurity, all bird owners should report sick birds or unusual bird deaths to State/Federal officials, either through their state veterinarian or through USDA’s toll-free number at +1 (866) 536-7593. Additional information on biosecurity for all poultry flocks can be found here.

Additional background

Virulent Newcastle disease is a contagious and fatal viral disease affecting the respiratory, nervous and digestive systems of birds and poultry. The disease is so virulent that many birds and poultry die without showing any clinical signs. A death rate of almost 100 percent can occur in unvaccinated poultry flocks. Virulent Newcastle disease can infect and cause death even in vaccinated poultry.

Clinical signs of virulent Newcastle disease include: sudden death and increased death loss in the flock; sneezing; gasping for air; nasal discharge; coughing; greenish, watery diarrhea; decreased activity; tremors; drooping wings; twisting of the head and neck; circling; complete stiffness; and swelling around the eyes and neck. Images of some of these signs are available here.

Ryan Johnson

Editor at The Poultry Site

Ryan worked in conservation from 2008 to 2017, during which time he operated a rainbow trout hatchery and helped to maintain public and protected green spaces in Canada for the Toronto and Region Conservation Authority. As editor of The Poultry Site, he now writes about challenges and opportunities in agriculture across the globe.

© 2000 - 2024 - Global Ag Media. All Rights Reserved | No part of this site may be reproduced without permission.