FIV is common in feral cats, but this is the first time it is been confirmed in hybrid cats in a priority conservation area.

Need to vaccinate and neuter 'at an all-time high'

Scottish scientists have reported the first known cases of feline immunodeficiency virus (FIV) in hybrid cats. They say it poses a threat to endangered Scottish wildcats.

FIV is a deadly virus that causes the feline version of Aids. While it is common in feral cats, this is the first time it has been confirmed in cats with mixed domestic/wild ancestry.

The discovery was made by wildlife experts from the Royal (Dick) School of Veterinary Studies and National Museums Scotland. They carried out post-mortem examinations on 23 feral and hybrid cats from around Scotland.

One of the cases was identified in a priority spot for wildcat conservation. The long-haired tabby was found dead in a barn in Movern in the West Highlands. It is one of six areas highlighted by Scottish Wildcat Action.

There is no vaccine for FIV, which is mainly transmitted by fighting male cats. Experts say neutering is the key to tackling the problem.

Researchers say the recent find should act as a warning to cat owners. "Pet owners must be encouraged to vaccinate and neuter their cats, particularly if they live in a wildcat priority area," said Professor Anna Meredith, from the Royal (Dick) School of Veterinary Studies.

"Cats are susceptible to other illnesses, such as cat flu and feline leukaemia virus, and these can be common in feral cats too.

"This means the importance of vaccinating and neutering cats is at an all-time high as we continue to work together to save our Scottish wildcat."

Scottish Wildcat Action is a national project that comprises 21 partner organisations, including the Royal Dick vet school. The programme aims to reduce threats in priority areas, to breed wildcats for release and to contribute to better understanding through research. It is now over a year into its six-year timescale. 

Image © Peter Cairns