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Abortion in sheep is a major cause of flock losses across the UK, leading to significant financial and welfare challenges. Each lost lamb reduces productivity, increases veterinary costs and adds to the labour demands of lambing season. In severe cases, abortion storms can threaten the long-term viability of a flock. 

Infectious causes are particularly concerning due to their potential for rapid spread and long-term consequences. Diseases like enzootic abortion of ewes (EAE), toxoplasmosis, and campylobacteriosis can persist in a flock, causing repeated losses if not managed effectively. On top of this, many of these infections are zoonotic, posing risks to humans - especially pregnant women and immunocompromised individuals. 

Early detection and proactive management are key to reducing losses. Keeping accurate lambing records, monitoring abortion rates and promptly investigating any suspected cases can help prevent further spread and protect both flock and human health.   

Recognising Infectious Abortion 

While some abortion in a flock is inevitable, a rate exceeding 2% of lambs lost could suggest an infectious cause and the need for immediate investigation. Keeping accurate, up-to-date records during lambing season is essential for identifying problems early and taking swift action. 

Regular flock checks help monitor sheep welfare and detect abortion signs quickly. Be on the lookout for: 

• Dead lambs that are not fully formed 
• Decomposed or foul-smelling afterbirth 
• Ewes with bloody legs or tails 

Read the full newsletter in the link to the pdf above.