title: [Expert--but on what?].
abstract: Chronic fatigue syndrome has received much attention owing to its debilitating character. The question as to whether the vaccine against meningococcus group B can provoke chronic fatigue syndrome has recently been addressed. Consensus in Norway seems to be that the vaccine does not provoke the syndrome. The article presents my reasons for questioning this conclusion.
authors.affiliation: Avdeling for mikrobiologi og immunologi Haukeland universitetssjukehus og Gades Institutt Universitetet i Bergen 5021 Bergen. elling.ulvestad@helse-bergen.no
authors.forename: Elling
authors.initials: E
authors.lastname: Ulvestad