New Variant of Hemorrhagic Viral Disease in Rabbits (RHDV2)
This article is not meant to be a technical report but rather a simple and informative guide to help you understand why we recommend vaccinating against this new virus.
What is classic RHD?
Rabbit Hemorrhagic Disease (RHD) is a viral illness caused by a calicivirus. It was first discovered in the 1980s and only affects European rabbits (all domestic rabbits belong to this group). It does not affect hares or humans.
How is it transmitted?
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Direct contact: secretions such as tears, saliva, urine.
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Indirect contact: contaminated food, water, shoes, tools, bedding.
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Insects (mosquitoes, fleas).
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Other animals like birds, rodents, cats, or dogs can carry it passively.
Once infected, there is no treatment, and mortality reaches up to 90 %. Most affected rabbits die suddenly without symptoms, though internal hemorrhages may be seen after death.
New Variant: RHDV2
Discovered in France in 2010 and in Spain by 2011, this variant has now spread across Europe. Although it shares features with the classic virus, RHDV2 is considered a separate strain.
Key differences:
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The classic vaccine does not protect against RHDV2.
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Also affects hares.
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Lower mortality rate (20–70 %, especially in young rabbits).
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Affects rabbits as young as 11 days (classic RHD from 35 days).
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Can also be spread via feces.
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Has a longer incubation period.
How can I protect my rabbit?
Annual vaccines:
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Nobivac Myxo-RHD (classic RHD + myxomatosis).
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Cunipravac Variant (specifically for RHDV2).
Additional measures:
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Avoid picking plants in wild rabbit zones.
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Use mosquito screens if rabbits live outdoors.
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Change shoes when entering the house.
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Quarantine any new rabbits for at least 2 weeks.
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Keep pets that roam outside away from house rabbits.
When to vaccinate?
We recommend vaccinating in April, before the high-risk season begins. Contact us at 972 23 90 03 or animalia@animalia.cat to book your appointment.
If your rabbit shows any unusual symptoms, consult an exotic animal veterinarian.
