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Table 1 Number of samples investigated and percentage of positive colonization in three distinct time periods

From: Dynamics of pneumococcal nasopharyngeal carriage in healthy children attending a day care center in northern Spain. influence of detection techniques on the results

Children sampled on Total samples Nov 04/Feb 05 May 05/Jun 05 Nov 05/Dec 05
  Positive/Investigated (%) Positive/Investigated (%) Positive/Investigated (%) Positive/Investigated (%)
3 occasions (n = 25) 60/75 (80%) 22/25 (88%) 20/25 (80%) 18/25 (72%)
2 occasions (n = 53) 83/106 (78.3%) 37/44 (84.1%) 39/53 (73.6%) 7/9 (77.8%)
1 occasion (n = 27) 18/27 (66.7%) 2/3 (66.7%) 3/4 (75%) 13/20 (65%)
Total (n = 105) 161/208 (77.4%) 61/72 (84.7%) 62/82 (75.6%) 38/54 (70.4%)