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Using <jats:styled-content style=\"fixed-case\">PCR<\/jats:styled-content> and subsequent direct cycle sequencing, the nucleotide sequences of the amplicons (17\u00a0kDa protein gene) in cerebrospinal fluid were analysed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Five out of 60 (8.3%) patients with facial palsy and eight of 67 (11.9%) with hearing loss showed confirmative serological evidence of infection with <jats:italic><jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>ickettsia<\/jats:italic> spp. An additional three and four patients in the facial palsy and hearing loss groups, respectively, showed evidence of having a recent or current infection or serological findings suggestive of infection. In four cases, the specificity of the reaction was confirmed by western blot. An additional 70 patients were seroreactive with <jats:styled-content style=\"fixed-case\">I<\/jats:styled-content>g<jats:styled-content style=\"fixed-case\">G<\/jats:styled-content> or <jats:styled-content style=\"fixed-case\">I<\/jats:styled-content>g<jats:styled-content style=\"fixed-case\">M<\/jats:styled-content> antibodies higher than or equal to the cut\u2010off of 1:64, whereas 37 patients were seronegative. Only two of 127 patients had detectable antibodies to <jats:italic><jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>orrelia<\/jats:italic> spp. In three of six patients, rickettsial <jats:styled-content style=\"fixed-case\">DNA<\/jats:styled-content> was detected in the cerebrospinal fluid, where the obtained sequences (17\u00a0kDa) shared 100% similarity with the corresponding gene sequence of <jats:italic><jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>ickettsia<\/jats:italic>\u00a0<jats:italic>felis<\/jats:italic>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>These results highlight the importance of considering <jats:italic><jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>ickettsia<\/jats:italic> spp. as a cause of neuritis, and perhaps as a primary cause of neuritis unrelated to neuroborreliosis.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ene.12218","type":"journal-article","created":{"date-parts":[[2013,6,21]],"date-time":"2013-06-21T16:31:07Z","timestamp":1371832267000},"page":"206-214","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["<scp>B<\/scp>ell's palsy and sudden deafness associated with <i><scp>R<\/scp>ickettsia<\/i> spp. infection in <scp>S<\/scp>weden. 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