title: Gipuzkoa, Basque Country, Spain (1984-2004): a hyperendemic area of Q fever.
abstract: Overall 1,261 cases of Q fever were diagnosed between 1984 and 2004 in Gipuzkoa (Basque Country, Spain). Most (75.5%) of the cases ocurred in subjects 15-45 years of age. A total of 79.5% of the cases (n = 1003) ocurred between January and June. The annual incidence for acute Q fever in Gipuzkoa was 7.7, 15.8, 9.6, and 5.7 for the periods 1984-1989, 1990-1994, 1995-1999, and 2000-2004, respectively. In 94% of the cases IgM titer was >/=1/256. The most frequent clinical manifestation was pneumonia (79%). Only two cases of chronic Q fever were detected during the 21 years studied.
authors.affiliation: Microbiology Department, Donostia Hospital, P Dr. Beguiristain s/n, 20014 San Sebastián, Gipuzkoa, Spain. ludvirol@chdo.osakidetza.net
authors.forename: M
authors.initials: M
authors.lastname: Montes
authors.forename: G
authors.initials: G
authors.lastname: Cilla
authors.forename: D
authors.initials: D
authors.lastname: Vicente
authors.forename: V
authors.initials: V
authors.lastname: Nieto
authors.forename: M
authors.initials: M
authors.lastname: Ercibengoa
authors.forename: E
authors.initials: E
authors.lastname: Perez-Trallero
mesh_terms: D000293:Adolescent; D000328:Adult; D000907:Antibodies, Bacterial / Q000097:blood; D005843:Geography; D006801:Humans; D007075:Immunoglobulin M / Q000097:blood; D015994:Incidence; D008875:Middle Aged; D018410:Pneumonia, Bacterial / Q000209:etiology; D011778:Q Fever / Q000175:diagnosis / Q000453:epidemiology* / Q000276:immunology; D012621:Seasons; D013030:Spain / Q000453:epidemiology
chemical_list: D000907:Antibodies, Bacterial; D007075:Immunoglobulin M