VLA Passive Surveillance

BCT encourages bat workers and members of the public to submit dead bats to the Vetinary Laboratories Agency's (VLA) passive surveillance programme.

What is the passive surveillance programme?

The VLA tests bat specimens, which have been sent in my members of the public and local bat workers, for European Bat Lyssavirus (EBLV).  The surveillance programme was established in 1987, following concerns that EBLV might be brought into the UK by bats crossing over from Europe.  

Between 1987 and 2010 around 10,000 bat specimens have been processed by the VLA.  Of these, just nine bats have tested positive for EBLV type 2.  All were Daubenton's bats.  No bats have tested positive for EBLV type 1.

Why does BCT encourage bat workers to submit dead bats for testing?

This programme significantly contributes to our understanding of EBLV in the UK, and its results ensure that good practice guidelines, with regards to rabies and bats, is evidence-based. 

How do I submit a bat for testing?

• Contact the BCT helpline on 0845 1300 228 to request a tube;
• Place the dead bat inside the tube;
• Seal the tube and wrap it in an absorbant material, e.g. kitchen roll;
• Complete the submission form ; and
• Send to the VLA in the freepost envelope provided.

BAT 1 submission forms are available from www.defra.gov.uk and the BCT helpline.

The BCT helpline will endeavour to send out a tube as soon as possible. Whilst waiting for your tube to arrive the dead specimen should be kept somewhere cool, however please note that dead bats should not be stored in the freezer as this can interfere with the testing process. 

Submission of rarer species

Over 70% of specimens submitted to the VLA have been pipistelles. To try and help address this bias, greater and lesser horseshoes, Bechstein's, barbastelles and grey long-eared bats may now, in exceptional cases, be returned to the sender, provided the specimen tests negative for EBLV.  This requires the VLA to undertake a different test though. So please make clear on the BAT 1 form if you would like to request this service and the VLA will make every effort to accommodate your wishes.