title: Baseline Widal titres in healthy children.
abstract: OBJECTIVE
  To determine the baseline Widal titres in apparently healthy children in Davangere.
  
  
  METHODS
  Cross-sectional study was done on 250 children. Widal titers were found using tube agglutination test.
  
  
  RESULTS
  Out of 250,64.2% had a titre of less than 1:20,22.4% had a titre equal to 1:20,9.6% had a titre of 1:40 and 3.6% had a titre of 1:80 to 'O' antigen and 67.2% had a titre of less than 1:20, 21.2% had a titre equal to 1:20, 8% had a titre of 1:40 and 3.6% had a titre of 1:80 to 'H' antigen of S. enterica subsp. enterica ser. Typhi. No children in age group 6 months-2 years had a titre of 1:80 to either antigen. All children in this age group had a titre of less than 1:20 to AH antigen and older children had a titre upto 1:40 dilution.
  
  
  CONCLUSIONS
  Baseline titres for either S. enterica subsp. enterica ser. Typhi antigen in 6 month-2 year was 1:40 and older children was 1:80. Baseline titres for H antigen of S. enterica subsp. enterica ser. Paratyphi A in 6 month-2 year was less than 1:20 and for older children was 1:40 dilution.
authors.affiliation: Department of Pediatrics, J.J.M. Medical College, Davangere, Karnataka, India.
authors.forename: Anand M
authors.initials: AM
authors.lastname: Patil
authors.forename: M L
authors.initials: ML
authors.lastname: Kulkarni
authors.forename: Akhil M
authors.initials: AM
authors.lastname: Kulkarni
mesh_terms: D000367:Age Factors; D000371:Agglutination; D000372:Agglutination Tests; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D019353:Endemic Diseases; D005260:Female; D006801:Humans; D015994:Incidence; D007194:India / Q000453:epidemiology; D007223:Infant; D008297:Male; D010284:Paratyphoid Fever / Q000453:epidemiology / Q000276:immunology*; D012016:Reference Values; D012307:Risk Factors; D012482:Salmonella paratyphi A / Q000276:immunology; D012485:Salmonella typhi / Q000276:immunology; D012720:Severity of Illness Index; D014435:Typhoid Fever / Q000453:epidemiology / Q000276:immunology*