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Volume 24, Number 3—March 2018
Dispatch

Molecular and Epidemiologic Analysis of Reemergent Salmonella enterica Serovar Napoli, Italy, 2011–2015

Michela SabbatucciComments to Author , Anna Maria Dionisi, Patrizio Pezzotti, Claudia Lucarelli, Lisa Barco, Marzia Mancin, and Ida Luzzi
Author affiliations: European Centre for Disease Prevention and Control, Stockholm, Sweden (M. Sabbatucci); Istituto Superiore di Sanità, Rome, Italy (M. Sabbatucci, A.M. Dionisi, P. Pezzotti, C. Lucarelli, I. Luzzi); Istituto Zooprofilattico Sperimentale delle Venezie, Padua, Italy (L. Barco, M. Mancin)

Main Article

Table 2

Characteristics of environmental samples contaminated with Salmonella enterica serovar Napoli and samples with the 5 most common other nontyphoidal serovars, Italy 2011–2015*

Characteristic Serovar Napoli, no. (%) Other serovars, no. (%) Total p value aOR (95% CI)
Geographic area
Northern 37 (2.5) 531 (35.6) 1,493 <0.001 0.13 (0.06–0.26)
Central 16 (11.2) 38 (26.6) 143 1
Southern 23 (5.2) 151 (34.2) 442 0.001 0.25 (0.11–0.57)
Time of sampling
Jan–Mar 4 (1.0) 200 (49.8) 402 1
Apr–Jun 28 (4.9) 169 (29.8) 567 <0.001 9.45 (3.15–28.35)
Jul–Sep 30 (4.7) 153 (24.2) 632 <0.001 10.8 (3.62–32.25)
Oct–Dec 14 (2.9) 198 (41.5) 477 <0.05 3.83 (1.22–12.06)
Period of sampling
2011–2013 43 (3.6) 411 (34.5) 1,193 1
2014–2015 33 (3.7) 309 (34.9) 885 0.066 0.59 (0.33–1.04)
Total 76 (100.0) 720 (100.0) 2,078 ND ND

*The 5 most common other serovars were the monophasic variant of Typhimurium, Typhimurium, Derby, Enteritidis, and Infantis. aOR, adjusted odds ratio; ND, not determined.

Main Article

Page created: March 05, 2018
Page updated: March 05, 2018
Page reviewed: March 05, 2018
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