sentences:  However aside from the issue of terminology, some mainstream medical opinion goes as far as to say that some Lyme disease cases can become "difficult to treat" if not quickly diagnosed.Although the term "chronic Lyme" was once used by Steere and others to define persistent complications following acute Lyme disease, various Lyme advocacy organizations and a dissident group of doctors called the International Lyme and Associated Diseases Society (ILADS) have redefined the term to describe a wide range of symptoms, mostly in patients who have no evidence of Lyme disease.Steere and his colleagues said that even patients with a positive serology for "Borrelia" infection and with symptoms resembling those of CFS or fibromyalgia, would not be helped by further antibiotics.