CD40LG and Facial palsy: Of 559 patients with facial palsy, 4.7% (26) were recorded with LNB, 39.4% (220) with IFP and negative Borrelia serology, 30.4% (170) with IFP and no Borrelia serology tested, and 7.7% (43) did not have LNB but positive Borrelia serology (i.e. 16 IgM ELISA, seven IgG ELISA, two both IgM and IgG ELISA, seven IgM immunoblot, eight IgG immunoblot, three both IgM and IgG immunoblot).