Antibodies

Diarrhoea of >6 weeks’ duration, especially with weight loss and where cancer is not suspected, warrants testing (such as full blood count, C reactive protein or erythrocyte sedimentation rate, coeliac antibodies, and thyroid function)  

There is much controversy about chronic health consequences of Lyme disease, but this study indicates that carriers of B. burgdorferi antibodies have similar general health complaints to non-carriers.