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New feline viruses found in wild and domestic cats
Image mountain lion
Scientists say the newly discovered viruses could be linked to cancers in domestic cats.
US researchers identify new cancer-causing viruses

A family of cancer-causing viruses have been identified for the first time in US populations of wild and domestic cats.

Researchers at Colorado State University (CSU) say their findings raise questions as to whether these viruses could be the cause of cancers found in domestic cats and whether they can be transmitted between cat species.

Scientists tested nearly 300 blood samples from bobcats, mountain lions and domestic cats, according to research published in the online version of the Journal of Virology.

Wildlife ecologists shared blood samples from bobcats and mountain lions with CSU, while US animal shelters provided samples from domestic cats. Blood samples covered animals from Florida, Colorado and California.

Scientists say they identified novel gammaherpesviruses in all three species. While it is not known how the virus spread, Ryan Troyer, a research scientist at CSU, said it could be transmitted when animals fight in the wild.

The viruses they identified relate to herpesviruses that can cause lymphoma and Kaposi's sarcoma in humans, particularly those with HIV-AIDS or other immune-suppressing conditions.

According to researchers, other herpesviruses can cause fatal bovine disease when transmitted to cattle from other species such as sheep and wildebeest.

While it is unknown if these novel feline viruses are linked to disease in wild and domestic cats, the association between gammaherpesviruses and disease in other species indicates this is a possibility, scientists say.

Visit the online Journal of Virology to read the abstract.

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Equine Disease Surveillance report released for Q4 2025

News Story 1
 The latest Equine Disease Surveillance report has been released, with details on equine disease from Q4 of 2025.

The report, produced by Equine Infectious Disease Surveillance, includes advice on rule changes for equine influenza vaccination.

Statistics and maps detail recent outbreaks of equine herpes virus, equine influenza, equine strangles and equine grass sickness. A series of laboratory reports provides data on virology, bacteriology, parasitology and toxicosis.

This issue also features a case study of orthoflavivus-associated neurological disease in a horse in the UK. 

Click here for more...
News Shorts
NSA webinar explores sheep tailing and castration

The National Sheep Association (NSA) is to host a free webinar on the castration and tail docking of lambs.

The webinar, 'Understanding the tailing and castration consultation: A guide for sheep farmers', will be hosted online on Monday, 2 March 2026 at 7.30pm.

It comes during a government consultation into the methods used for these procedures. Farmers are encouraged to engage before the consultation period closes on Monday, 9 March 2026.

The webinar offers clear and actionable guidance to support farmers to contribute meaningfully to the consultation and prepare for potential changes.

On the panel will be former SVS president Kate Hovers, farmer and vet Ann Van Eetvelt and SRUC professor in Animal Health and Veterinary Sciences Cathy Dwyer. Each panel member will utilise their own specialism and expertise to evaluate risks and outcomes to sheep farming.

Find out more about the webinar on the NSA website.