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Volume 23, Number 3—March 2017

Zoonotic Transmission of mcr-1 Colistin Resistance Gene from Small-Scale Poultry Farms, Vietnam

Nguyen Vinh TrungComments to Author , Sébastien Matamoros, Juan J. Carrique-Mas, Nguyen Huu Nghia, Nguyen Thi Nhung, Tran Thi Bich Chieu, Ho Huynh Mai, Willemien van Rooijen, James Campbell, Jaap A. Wagenaar, Anita Hardon, Nguyen Thi Nhu Mai, Thai Quoc Hieu, Guy Thwaites, Menno D. de Jong, Constance Schultsz1, and Ngo Thi Hoa1
Author affiliations: University of Amsterdam, Amsterdam, the Netherlands (N.V. Trung, S. Matamoros, W. van Rooijen, A. Hardon, M.D. de Jong, C. Schultsz); Amsterdam Institute for Global Health and Development, Amsterdam (N.V. Trung, S. Matamoros, C. Schultsz); Centre for Tropical Medicine, Ho Chi Minh City, Vietnam (N.V. Trung, J.J. Carrique-Mas, N.H. Nghia, N.T. Nhung, T.T.B. Chieu, J. Campbell, G. Thwaites, C. Schultsz, N.T. Hoa); University of Oxford, Oxford, UK (J.J. Carrique-Mas, J. Campbell, G. Thwaites, N.T. Hoa); Sub-Department of Animal Health, My Tho, Vietnam (H.H. Mai, T.Q. Hieu); Utrecht University, Utrecht, the Netherlands (J.A. Wagenaar); Central Veterinary Institute of Wageningen University & Research, Lelystad, the Netherlands (J.A. Wagenaar); Preventive Medicine Center, My Tho (N.T.N. Mai)

Main Article

Table 1

Prevalence of fecal colonization with mcr-1–carrying bacteria in chickens and humans, Tien Giang Province, Vietnam, 2012–2013

Source Prevalence of fecal colonization with mcr-1–carrying bacteria
No. positive sweeps/total (%) Adjusted prevalence, % (95% CI)
All chicken farms 93/188 (49.5) 59.4 (47.9–71.0)
Household chicken farms 53/94 (56.4) 59.5 (47.9–71.1)
Small-scale chicken farms 40/94 (42.6) 47.9 (35.4–60.3)
All human participants 84/440 (19.1) 20.6 (15.9–25.2)
All farmers 45/179 (25.1) 25.2 (18.3–32.0)
Farmers exposed to mcr-1–negative chickens 16/91 (17.6) 15.5 (7.7–23.3)
Farmers exposed to mcr-1–positive chickens 29/88 (33.0) 34.7 (23.9–45.5)
Rural persons 31/173 (17.9) 17.6 (11.6–23.7)
Urban persons 8/88 (9.1) 9.1 (3.1–15.1)

Main Article

1These authors contributed equally to this article.

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