Gipuzkoa, Basque Country, Spain (1984-2004): a hyperendemic area of Q fever.
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.
Montes
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Microbiology Department, Donostia Hospital, P Dr. Beguiristain s/n, 20014 San Sebastián, Gipuzkoa, Spain. ludvirol@chdo.osakidetza.net
Cilla
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Vicente
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Nieto
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Ercibengoa
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Perez-Trallero
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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
D000907:Antibodies, Bacterial; D007075:Immunoglobulin M