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Exploring the cause of grass sickness *H&H Plus*


  • Why would one horse develop equine grass sickness (EGS) and not another? Owners who have nursed an animal through this debilitating disease — or lost one to it — are left puzzling over what they could have done to prevent it.

    Sadly, there are still no answers. A vaccine trial has proved inconclusive and the cause of EGS remains a mystery. So what do we know about this troubling condition — and where, exactly, do we stand?