The present disclosure relates to a peripheral nerve electrode array that includes a first, second and third pair of electrodes spaced from each other along a longitudinal axis of the electrode array, the second pair of electrodes being located between the first and third pairs of electrodes. The present disclosure further relates to method for treating or preventing a chronic inflammatory condition in a human subject in need thereof, comprising providing to the human subject a therapeutically effective electrical stimulation of the anterior central abdominal vagus nerve or the posterior central abdominal vagus nerve, wherein the electrical stimulation is provided through two or more previously implanted electrodes at a site below the cardiac branches and above the hepatic-celiac branches of the nerve; and whereby the chronic inflammatory condition is prevented or treated in the human subject. In addition, the present disclosure relates to a method for treating or preventing a chronic inflammatory condition in a human subject in need thereof.