- 28 Oct 2018
Warble fly mainly affects cattle. It can also affect horses and deer. Warble fly does not affect humans.
The main sign of warble fly is large, soft and painful swellings on the back of the animal of up to 3mm wide.
How warble fly is spread
The disease is spread by the warble fly, which lays eggs on the hide of animals.
Human health implications
There are no human health implications, although there have been some isolated cases of accidental infection of laboratory personnel working with the virus.
If warble fly is confirmed, the outbreak will be controlled in line with the contingency framework for exotic notifiable animal diseases.
An approved list of products to treat warble fly can be found on the Veterinary Medicines Directorate product information database.
The main legislation on warble fly is the Warble Fly (Scotland) Order 1982.
Biosecurity is about being aware of the ways disease can spread and taking every practical measure to minimise the risk of disease spreading. The advice details practical things you can do on your farm to help prevent the introduction and spread of warble fly to and from your animals.
If you suspect signs of any notifiable diseases, you must immediately notify your Scotland: field service local office at the Animal and Plant Health Agency (APHA). Failure to do so is an offence.