UK pig vets warned as mysterious parvovirus strain spreads in Europe

Pig vets are urged to monitor for a new parvovirus variant linked to outbreaks in Dutch and Danish farms, potentially impacting young pigs and bypassing existing vaccines, raising concerns about future disease spread in UK herds amid ongoing investigations.

Britain’s pig vets have been warned to watch for a strange syndrome that has emerged on Dutch farms and at a breeding unit in Denmark, with authorities linking it to a newly identified parvovirus variant. The episode matters because the disease affects young pigs at scale, appears unlikely to be covered by current vaccines and could force producers to tighten surveillance before it crosses into UK herds. For a sector already sensitive to respiratory, enteric and growth-related disease, the key question is whether this is a localised oddity or the start of a wider European problem.

According to an alert from the Animal and Plant Health Agency, affected pigs are usually between two and 10 weeks old and can show protruding eyes, misaligned eyes, reddened and wrinkled skin, hair loss, breathing difficulties and poor growth. In some outbreaks, as many as 80 per cent of pigs in about half of litters were affected, although mortality has so far remained low and most animals recovered.

Investigations in the Netherlands and Denmark have repeatedly found high levels of a previously unrecognised parvovirus variant in sick pigs, but scientists have not yet proved it is the direct cause. APHA said there is no evidence of any risk to human health or food safety, but warned that existing vaccines for established porcine parvovirus are not expected to protect against the new strain. Vets in England and Wales have been told to report similar cases for APHA-funded investigation.

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