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Volume 19, Number 12—December 2013
CME ACTIVITY - Synopsis

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).

Main Article

Table 1

Frequency and incidence rate of human laboratory-confirmed Rift Valley fever cases by province where exposed, stratified by year, South Africa, 2008–2011*

Province 2008
 2009
 2010
 2011
 Total
No. (%) IR No. (%) IR No. (%) IR No. (%) IR No. (%)
Free State 0 0 0 0 125 (52) 4.43 3 (8) 0.11 128 (43)
Northern Cape 0 0 2 (29) 0.17 80 (33) 7.25 3 (8) 0.27 85 (28)
Eastern Cape 0 0 0 0 16 (7) 0.24 17 (46) 0.25 33 (11)
Western Cape 0 0 0 0 11 (5) 0.21 14 (38) 0.26 25 (8)
Gauteng 9 (53) 0.09 0 0 0 0 0 0 9 (3)
North West 0 0 0 0 8 (3) 0.25 0 0 8 (3)
Mpumalanga 6 (35) 0.17 0 0 0 0 0 0 6 (2)
KwaZulu-Natal 0 0 5 (71) 0.05 0 0 0 0 5 (2)
Limpopo
 2 (12)
 0.04
0
 0
0
 0
0
 0
2 (1)
Total
 17
 0.03
7
 0.01
240*
 0.48
37
 0.07
301†
*N = 302; IR, incidence rate/1000,000 persons.
†Province known for 301 (99%) cases; province data not available for 1 case-patient in 2010.
[[tablefoot]]

Main Article

Page created: December 11, 2013
Page updated: December 11, 2013
Page reviewed: December 11, 2013
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