title: [Sero-epidemiological investigation on Rickettsia typhi, Bartonella henselae and Orientia tsutsugamushi in farmers from rural areas of Tianjin, 2007 - 2009].
abstract: OBJECTIVE
  To study the sero-epidemiological status regarding Rickettsia (R.) typhi, Bartonella (B.) henselae and Orientia (O.) tsutsugamushi in farmers from rural areas of Tianjin.
  
  
  METHODS
  Field epidemiological surveys were performed in 8 districts (county) of Tianjin city from 2007 to 2009. 886 farmers were randomly recruited and their serum samples collected to detect the specific antibodies of R. typhi, B. henselae and O. tsutsugamushi by micro-indirect immunofluorescence (IFA).
  
  
  RESULTS
  The total antibody positive rates of R. typhi increased from 5.0% to 58.2% while B. henselae had an increase from 2.6% to 14.5% and O. tsutsugamushi increased from 1.8% to 39.8%. Geographic distribution showed that farmers living in the central and southeast areas were higher than that in other areas.
  
  
  CONCLUSIONS
  Infections of both R. typhi, B. henselae and O. tsutsugamushi in farmers from Tianjin areas were popular and the antibody positive rates of R. typhi, B. henselae and O. tsutsugamushi had an annual increase.
authors: Tiangjin Center for Disease Control and Prevention, China.
authors: Ying
authors: Y
authors: Zhang
authors: Zhi-lun
authors: ZL
authors: Zhang
authors: Jie-ying
authors: JY
authors: Yin
authors: Jie
authors: J
authors: Lv
authors: Hui-lan
authors: HL
authors: Yu
authors: Chang-wei
authors: CW
authors: Liang
authors: Shi-wen
authors: SW
authors: Wang
authors: Jing-bo
authors: JB
authors: Zhao
authors: Li-juan
authors: LJ
authors: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000383:Agriculture; D001474:Bartonella Infections / Q000097:blood / Q000453:epidemiology*; D018416:Bartonella henselae / Q000276:immunology; D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012285:Orientia tsutsugamushi / Q000276:immunology; D012286:Rickettsia typhi / Q000276:immunology; D012612:Scrub Typhus / Q000097:blood / Q000453:epidemiology*; D016036:Seroepidemiologic Studies; D014437:Typhus, Endemic Flea-Borne / Q000097:blood / Q000453:epidemiology*; D055815:Young Adult