title: Q fever is underestimated in the United States: a comparison of fatal Q fever cases from two national reporting systems.
abstract: Two national surveillance systems capturing reports of fatal Q fever were compared with obtained estimates of Q fever underreporting in the United States using capture-recapture methods. During 2000-2011, a total of 33 unique fatal Q fever cases were reported through case report forms submitted to the Centers for Disease Control and Prevention and through U.S. death certificate data. A single case matched between both data sets, yielding an estimated 129 fatal cases (95% confidence interval [CI] = 62-1,250) during 2000-2011. Fatal cases of Q fever were underreported through case report forms by an estimated factor of 14 and through death certificates by an estimated factor of 5.2.
authors.affiliation: Rickettsial Zoonoses Branch, Centers for Disease Control and Prevention, Atlanta, Georgia; Prion and Public Health Office, Centers for Disease Control and Prevention, Atlanta, Georgia iot0@cdc.gov.
authors.forename: F Scott
authors.initials: FS
authors.lastname: Dahlgren
authors.affiliation: Rickettsial Zoonoses Branch, Centers for Disease Control and Prevention, Atlanta, Georgia; Prion and Public Health Office, Centers for Disease Control and Prevention, Atlanta, Georgia.
authors.forename: Dana L
authors.initials: DL
authors.lastname: Haberling
authors.affiliation: Rickettsial Zoonoses Branch, Centers for Disease Control and Prevention, Atlanta, Georgia; Prion and Public Health Office, Centers for Disease Control and Prevention, Atlanta, Georgia.
authors.forename: Jennifer H
authors.initials: JH
authors.lastname: McQuiston
mesh_terms: D002423:Cause of Death; D002487:Centers for Disease Control and Prevention, U.S.; D005568:Forms and Records Control / Q000379:methods; D006801:Humans; D011159:Population Surveillance / Q000379:methods; D011778:Q Fever / Q000453:epidemiology* / Q000401:mortality; D014481:United States / Q000453:epidemiology