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Volume 20, Number 3—March 2014

Research

Monitoring Water Sources for Environmental Reservoirs of Toxigenic Vibrio cholerae O1, Haiti

Meer T. Alam, Thomas A. Weppelmann, Chad D. Weber, Judith A. Johnson, Mohammad H. Rashid, Catherine S. Birch, Babette A. Brumback, Valery E. Madsen Beau de Rochars, J. Glenn, and Afsar AliComments to Author 
Author affiliations: University of Florida College of Public Health and Health Professions, Gainesville, Florida, USA (M.T. Alam, T.A. Weppelmann, V.E. Madsen Beau de Rochars, A. Ali); University of Florida Emerging Pathogens Institute, Gainesville (M.T. Alam, T.A. Weppelmann, C.D. Weber, J.A. Johnson, M.H. Rashid, C.S. Birch, B.A. Brumback, V.E. Madsen Beau de Rochars, J.G. Morris, Jr., A. Ali); University of Florida College of Medicine, Gainesville (M.H. Rashid, V.E. Madsen Beau de Rochars, A. Ali)

Main Article

Table 4

Conditional logistic regression analysis of water quality factors affecting the occurrence Vibrio cholerae O1 and non-O1/non-O139 in aquatic reservoirs, Haiti, April 2012–March 2013

Factor Units No. observations Odds ratio (95% CI) p value
Presence of V. cholera 01
Temperature 1°C 47 2.14 (1.06–4.31) 0.033*
pH 1 log[H+] 47 0.01 (0.00–1.81) 0.083
Dissolved oxygen 1 mg/L 47 0.32 (0.08–1.20) 0.091
Total dissolved solids 100 mg/L 47 1.08 (0.95–1.23) 0.258
Salinity 1 g/L 47 1.24 (0.86–1.80) 0.254
Conductivity 100 (µS/cm) 47 1.05 (0.98–1.13) 0.198
Heterotrophic bacteria
 log (CFU/mL)
 47
 6.00 (0.57–62.78)
 0.135
Presence of V. cholera non-01
Temperature 1°C 154 1.36 (1.05–1.76) 0.02*
pH 1 log[H+] 154 0.44 (0.09–2.14) 0.311
Dissolved oxygen 1 mg/L 154 0.50 (0.32–0.79) 0.003*
Total dissolved solids 100 mg/L 154 0.96 (0.86–1.06) 0.413
Salinity 1 g/L 154 1.19 (0.80–1.77) 0.378
Conductivity 100 (µS/cm) 154 0.98 (0.92–1.04) 0.432
Heterotrophic bacteria log (CFU/mL) 153 2.35 (0.95–5.77) 0.063

*p<0.05 were considered statistically significant.

Main Article

Page created: February 19, 2014
Page updated: February 19, 2014
Page reviewed: February 19, 2014
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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