Avian Diseases Transmissible to Humans

A "please wash your hands" sign affixed to chicken cages at the poultry exhibit during the 4H Livestock show. Chickens, eggs, farm livestock, hygiene, safety.Anyone who keeps birds, whether as pets or as production animals, should be aware that certain avian diseases can be transmitted to humans. The seriousness of the disease in humans varies with human hosts’ age, overall health, and immune status as well as virulence of the organism, infective dose, and route of infection. This 4-page fact sheet is a major revision which discusses causes and symptoms of avian influenza (bird flu), chlamydiosis, salmonellosis, colibacillosis, encephalitis viruses, avian tuberculosis, Newcastle Disease, and cryptosporidiosis. Written by Michael A. Davis, Gary D. Butcher, and F. Ben Mather, and published by the UF Department of Animal Sciences, revised August 2015. Original publication date: August 1997.

Intestinal and Tracheal Parasites of Poultry

backyard flockA parasite is defined as an animal or plant that derives sustenance and/or protection by living in or on another animal or plant called the host. Intestinal and tracheal parasites of poultry are commonly referred to as “worms,” although this term is technically not correct. These parasites can cause chickens in a flock to appear unthrifty, which often leads to secondary complications. In some cases, the parasites can cause mortality in the flock. Frequent inspection of the flock for signs of illness is the best management tool for identifying when these parasites are a problem. This 3-page fact sheet was written by Gary D. Butcher and Michael A. Davis, and published by the UF Department of Animal Sciences, April 2014.

VM-174/VM136 Investigating Vaccination Failure in Poultry Flocks

VM-174, a 5-page fact sheet by Gary D. Butcher and Mojtaba Yegani, discusses disease management in poultry, why vaccination is used and reasons why a vacccine may fail to protect the flock. Includes references. Published by the UF College of Veterinary Medicine Department of Large Animal Clinical Sciences, November 2008.

VM176/VM138 Biosecurity for the Poultry Industry

VM-176, a 5-page illustrated fact sheet by Gary Butcher and Mojtaba Yegani, describes issues surrounding biosecurity for poultry operations, and important considerations for designing a comprehensive biosecurity program. Published by the UF College of Veterinary Medicine, Large Animal Clinical Sciences Department, January 2009.

VM174/VM137 The Role of Humans in Poultry Disease Outbreaks

VM174, a 3-page fact sheet by Gary Butcher and Mojtaba Yegani, focuses on the roles people may play in the occurrence of diseases in commercial poultry operations and what should be done to reduce or minimize the effects of this potential risk factor. Published by the UF College of Veterinary Medicine, December 2008.