(EMAILWIRE.COM, May 04, 2008 ) San Angelo, TX - As emu hatching season comes to a close, mosquito season begins in earnest, bringing with it the threat of mosquito-borne disease. For the emu farmer, this includes the danger of their flock picking up Eastern Equine Encephalitis (EEE). EEE is known to occur in many species of birds, horses and even man. Signs of EEE in emu include sudden onset of weakness, staggering, bloody diarrhea and rapid death, usually within 24 hours of first onset of symptoms. The virus can be "shed" in feces, blood or vomit. Humans can pick up this disease through contact with the virus through mucous membranes and/or open wounds so caution should be used when handling the carcasses. Contact with bloody feces, blood, or performing a necropsy procedure after the bird has died is highly discouraged unless the bird is examined by a well protected, knowledgeable, trained veterinarian.

Fortunately, there is a vaccine available to prevent EEE in emu, the same one used for horses. “The farmer should know that giving an equine product is off label and there is always a possibility of a vaccine reaction,” says Thomas N. Tully, Jr., DVM, MS. Tully reports that such reactions are rare, but that the farmer should be aware that it could happen. “A complete equine dose should be injected in the leg muscle using appropriate restraint and aseptic technique,” said Dr. Tully. According to Dr. Tully, the equine vaccine may safely contain equine tetanus, but should not be manufactured from an avian cell culture or one that contains equine influenza vaccine. The vaccine can be multivalent EEE, WEE, and VEE.

According to the American Emu Association Agriculture Committee Chair, Joylene Reavis, the benefits of vaccination outweigh the risks when considering the possibility of an EEE outbreak. “In addition to the possible danger to you and your family, you can lose an entire emu population on one farm within days,” states Reavis. “Your local vet clinic will know if EEE is a local concern and if there is an EEE outbreak in your area since this is important information for horse owners.”

Dr. Tully recommends vaccinating emu chicks starting at 6-8 wks then again at 10-12 wks, with a final injection at 16-18 wks, then every 6 months thereafter. “In the face of an outbreak the farmers can booster their birds at that time,” says Dr. Tully. “For adults that have not been vaccinated they should be vaccinated once, with a booster 3 weeks later, then every 6 months thereafter.” Additional information is available in the book Ratite Management, Medicine and Surgery edited by Thomas N. Tully, Jr. and Simon M. Shane. The book is a guide to the diagnosis and prevention of infectious diseases and metabolic conditions in commercial ratites. There are contributions by more than 15 experts in specific fields.

Thomas N. Tully, Jr., DVM, MS is a Diplomate ABVP (Avian), ECAMS and Professor of Zoological Medicine at the Louisiana State University - School of Veterinary Medicine in
Baton Rouge, Louisiana, USA. Veterinarians with emu/EEE related questions may reach him at 225-578-9557.

ABOUT THE AMERICAN EMU ASSOCIATION

Founded in 1989, the AEA is a nonprofit organization of breeders, producers and marketers of emu meat, oil and other emu co-products. AEA's mission is to establish value of emu products through research, market development and industry positioning.

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