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Posted: 12th November 2025
"It is vital we offer our greyhounds the broadest possible protection" - GBUK
The Greyhound Board of Great Britain (GBGB) has published new vaccination guidance, with all greyhounds registered from 1 January, 2027 required to have the L4 leptospirosis vaccination, rather than L2.
The change comes in response to the reduced availability of the L2 Leptospirosis vaccine across the UK, and aims to support best biosecurity practice across the racing greyhound population.
GBGB veterinary director Simon Gower, said “While rare, Leptospirosis is a serious infectious disease that can affect both dogs and humans, so it is vital that we offer our greyhounds the broadest possible protection.
“Many veterinarians are already opting to use the L4 vaccine, which protects against four Leptospira serovars rather than two. With the shift to L4 taking place nationwide, we expect that it will be increasingly difficult to source the L2 vaccine, so we strongly advise that trainers and track vets begin transitioning where they can ahead of the upcoming Rule change”.
Image (C) EcoPrint/Shutterstock.com
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The Greyhound Board of Great Britain has published new vaccination guidance, with all greyhounds registered from 1 January, 2027 required to have the L4 leptospirosis vaccination, rather than L2.
