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Volume 19, Number 12—December 2013


Epidemiologic Investigations into Outbreaks of Rift Valley Fever in Humans, South Africa, 2008–2011

Brett N. ArcherComments to Author , Juno Thomas, Jacqueline Weyer, Ayanda Cengimbo, Dadja E. Landoh, Charlene Jacobs, Sindile Ntuli, Motshabi Modise, Moshe Mathonsi, Morton S. Mashishi, Patricia A. Leman, Chantel le Roux, Petrus Jansen van Vuren, Alan Kemp, Janusz T. Paweska, and Lucille Blumberg
Author affiliations: National Institute for Communicable Diseases–National Health Laboratory Service (NICD-NHLS), Johannesburg, South Africa (B.N. Archer, J. Thomas, J. Weyer, A. Cengimbo, C. Jacobs, S. Ntuli, P.A. Leman, C. le Roux, P. Jansen van Vuren, A. Kemp, J.T. Paweska, L. Blumberg); University of the Witwatersrand, Johannesburg, South Africa (J. Thomas, L. Blumberg); NICD-NHLS–School of Health Systems and Public Health, University of Pretoria, South Africa (D.E. Landoh, M. Modise, M. Mathonsi, M. S. Mashishi); Ministère de la Santé, Lomé, Togo (D.E. Landoh).

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Table 2

Frequency distribution of human laboratory-confirmed Rift Valley fever cases by patient characteristic, South Africa, 2008–2011

Characteristic No. (%); N = 302
Male sex*
262 (87)
Age group, y†
0–9 1 (<1
10–19 16 (5)
20–29 67 (22)
30–39 47 (16)
40–49 68 (23)
50–59 53 (18)
60–69 30 (10)
18 (6)
Farmer or farm worker 173 (60)
Animal health worker 37 (13)
Abattoir worker, butcher, or hunter 32 (11)
Farm resident (nonworker) 5 (2)
Non–animal related occupation
42 (15)
*Known for 302 case-patients.
†Known for 300 case-patients.
‡Known for 289 case-patients

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