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Volume 21, Number 10—October 2015

Decreased Ebola Transmission after Rapid Response to Outbreaks in Remote Areas, Liberia, 2014

Kim A. LindbladeComments to Author , Francis Kateh, Thomas K. Nagbe, John C. Neatherlin, Satish K. Pillai, Kathleen R. Attfield, Emmanuel Dweh, Danielle T. Barradas, Seymour G. Williams, David J. Blackley, Hannah L. Kirking, Monita R. Patel, Monica Dea, Mehran S. Massoudi, Kathleen Wannemuehler, Albert E. Barskey, Shauna L. Mettee Zarecki, Moses Fomba, Steven Grube, Lisa Belcher, Laura N. Broyles, T. Nikki Maxwell, Jose E. Hagan, Kristin Yeoman, Matthew Westercamp, Joseph D. Forrester, Joshua Mott, Frank Mahoney, Laurence Slutsker, Kevin M. DeCock, and Tolbert G. Nyenswah
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (K.A. Lindblade, J.C. Neatherlin, S.K. Pillai, K.R. Attfield, D.T. Barradas, S.G. Williams, D.J. Blackley, H.L. Kirking, M.R. Patel, M. Dea, M.S. Massoudi, K. Wannemuehler, A.E. Barskey, S.L. Mettee Zarecki, S. Grube, L. Belcher, L.N. Broyles, T.N. Maxwell, J.E. Hagan, K. Yeoman, M. Westercamp, J. Forrester, J. Mott, F. Mahoney, L. Slutsker, K.M. DeCock); Ministry of Health and Social Welfare, Monrovia, Liberia (F. Kateh, T.K. Nagbe, E. Dweh, M. Fomba, T. Nyenswah)

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Table 3

Risk factors for >1 secondary Ebola virus disease cases in outbreaks in remote rural areas, Liberia, August–December 2014

>1 Secondary cases, no./total (%), n = 156
Risk ratio (95% CI)
p value
Sex 0.45
F 21/85 (25) 1.2 (0.8–1.7)
M 16/71 (23) Referent
Age, y 0.12
0–14 3/32 (9) 0.2 (0.1–0.5)
15–19 3/8 (38) 1.0 (0.4–2.5)
20–29 5/25 (20) 0.6 (0.3–1.2)
30–39 8/30 (27) 0.6 (0.3–1.0)
40–49 5/24 (21) 0.2 (0.1–0.5)
50–59 5/17 (29) 0.8 (0.4–1.5)
>60 7/17 (41) Referent
Outcome 0.02
Admitted to Ebola treatment unit 5/95 (5) 0.1 (0.04–0.3)
Recovered in the community 1/4 (25) 0.5 (0.1–3.3)
Died in the community 31/57 (54) Referent
Timing of case 0.02
Before intervention 30/77 (39) Referent
After intervention 5/75 (7) 0.1 (0.02–0.8)

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Page created: September 22, 2015
Page updated: September 22, 2015
Page reviewed: September 22, 2015
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