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Table 3 Prevalence of the three pathogens analyzed in the feral pigeon population in Madrid, sampled at three different times.

From: Screening for several potential pathogens in feral pigeons (Columba livia) in Madrid

Sampling time Chlamydophila psittaci Campylobacter jejuni Campylobacter coli
Nov. 2006 59.7%a (37/62) 81.8%b (36/44) 0% (0/44)
May 2007 37.0%a (10/27) 86.4%b (19/22) 4.5% (1/22)
Nov. 2007 51.8%a (14/27) 35.7%b (10/28) 0% (0/28)
Overall 52.6% (61/116) 69.1% (65/94) 1.1% (1/94)
  1. Presence of the pathogens was determined by PCR analysis and sequence alignments with Genbank (see Methods).
  2. a Statistically significant differences among sampling time for Chlamydophila psittaci: November 2006- May 2007 (p = 0.030); May 2007- November 2007 (p = 0.049); November (2006-2007)- May 2007 (0.047).
  3. b Statistically significant differences among sampling time for Campylobacter jejuni: November 2006- May 2007 (p = 0.032); May 2007- November 2007 (p = 0.001); November 2006- November 2007 (p = 0.001); November (2006-2007)- May 2007 (0.001).