title: [Observation of immunity level of pertussis-diphtheria-tetanus in healthy people in Hangzhou City during 1995-2006].
abstract: OBJECTIVE
  To study the pertussis-diphtheria-tetanus immunity level of healthy people in Hangzhou.
  
  
  METHODS
  Pertussis antibody, diphtheria antitoxin and tetanus antitoxin were tested. We carried out surveillance in different counties among the people at 2-4, 6-8, 13-15, 25-39 age group during 1995-2006.
  
  
  RESULTS
  It showed that the pertussis antibody positive rate of 1942 persons was 93.87%, GMT 1: 1037.36 IU/ml, the antibody of people in countryside for the people at 2-4 age group was lower than that of other groups and the difference was significant compared with 6-8, 13-15 age group (chi2 = 8.80, 6.13, P < 0.01). The diphtheria antitoxin positive rate of 2141 persons was 91.59%, with the GMT was 0.2911 IU/ml. The tetanus antitoxin positive rate of 2141 persons was 72.35%, GMT 0.095 IU/ml.
  
  
  CONCLUSIONS
  We need to strengthen the EPI work in rural areas.
authors.affiliation: Hangzhou City Center for Diseases Prevention and Control, Hangzhou 310006 Zhejiang, China.
authors.forename: Li-Ming
authors.initials: LM
authors.lastname: Huang
authors.forename: Er-Ping
authors.initials: EP
authors.lastname: Xu
authors.forename: Luo-Xian
authors.initials: LX
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D000328:Adult; D000907:Antibodies, Bacterial / Q000097:blood / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D002681:China; D004165:Diphtheria / Q000276:immunology*; D004166:Diphtheria Antitoxin / Q000276:immunology; D005260:Female; D006304:Health Status; D006801:Humans; D007109:Immunity; D008297:Male; D011159:Population Surveillance; D013742:Tetanus / Q000276:immunology*; D013743:Tetanus Antitoxin / Q000276:immunology; D014917:Whooping Cough / Q000097:blood / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D004166:Diphtheria Antitoxin; D013743:Tetanus Antitoxin