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EmailIphone Application    Posted: 19th July 2012
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New chicken virus created by vaccines
Hybrid of vaccines generating lethal new chicken disease

Two new strains of a poultry disease that have been plaguing chickens in Australia since 2008 have been revealed as hybrids of viruses from live vaccines - the first time such recombination has been seen between vaccine viruses in the wild.

In 2007, chicken farmers in Australia were using two commercial, live vaccines for infectious laryngotracheitis (ILT) made from Australian strains of virus. However, after they started using a third live vaccine containing a European strain, outbreaks of two new ILT strains began. The hybrids have proved just as deadly as wild ILT, killing 18% of affected flocks.

Glenn Browning and a team from the University of Melbourne in Parkville, Australia, have sequenced the new viruses and found that in each case they arose when the European vaccine strain acquired genes from the Australian vaccine viruses.

He commented: "We were quite surprised. The newer strain is half European, half Australian, and has outcompeted the original strain - it now dominates outbreaks in Australia."

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Defra shares new Sanitary and Phytosanitary guidance

News Story 1
 Defra has published guidance for the vet sector ahead of a proposed UK-EU Sanitary and Phytosanitary agreement.

The agreement, which will change the movement and trade of animals and related products, could see reductions in checks, paperwork and certification. As well as describing regulatory developments, the advice highlights the importance of animal ID, registration and traceability in disease control and other compliance arrangements.

The guidance can be found here. More detail is expected as negotiations progress. 

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News Shorts
New form for online veterinary medicines retailers

The Veterinary Medicines Directorate (VMD) has produced a new online form for retailers wishing to sell veterinary medicines on the internet.

The form replace the previous Word version and is part of the VMD's ongoing commitment to digitise its processes. Anyone retailing prescription medicines online, including POM-V, POM-VPS and NFA-VPS categories, is lawfully required to register with the VMD before trading.

The change only applies to new applicants. Retailers already listed on the VMD's Register of Online Retailers or registered under the Accredited Internet Retailer Scheme (AIRS) do not need to do anything.