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Volume 23, Number 12—December 2017
Dispatch

West Nile Virus Lineage 2 in Horses and Other Animals with Neurologic Disease, South Africa, 2008–2015

Marietjie VenterComments to Author , Marthi Pretorius, James A. Fuller, Elizabeth Botha, Mpho Rakgotho, Voula Stivaktas, Camilla Weyer, Marco Romito, and June Williams
Author affiliations: University of Pretoria Centre for Viral Zoonoses, Pretoria, South Africa (M. Venter, M. Pretorius, E. Botha, M. Rakgotho, V. Stivaktas, J. Williams); US Centers for Disease Control and Prevention, Global Disease Detection Centre, Pretoria (M. Venter, J.A. Fuller); National Health Laboratory Service, Tshwane, South Africa (M. Pretorius); University of Pretoria Equine Research Centre, Pretoria (C. Weyer); Onderstepoort Veterinary Research, Onderstepoort, South Africa (M. Romito)

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Figure 2

Distribution of WNV cases among horses, livestock animals, and wildlife species during 2008–2015 and of WNV neutralizing antibody‒positive veterinarians involved in equine, wildlife, and livestock disease management during 2011‒2012, South Africa. A) Samples were collected from horses during 2008–2015 and from livestock and wildlife 2010–2015. Samples were considered positive if they tested positive for WNV genome by PCR or for WNV IgM by WNV IgM Capture ELISA Test (IDEXX Laboratories, Montpelli

Figure 2. Distribution of WNV cases among horses, livestock animals, and wildlife species during 2008–2015 and of WNV neutralizing antibody‒positive veterinarians involved in equine, wildlife, and livestock disease management during 2011‒2012, South Africa. A) Samples were collected from horses during 2008–2015 and from livestock and wildlife 2010–2015. Samples were considered positive if they tested positive for WNV genome by PCR or for WNV IgM by WNV IgM Capture ELISA (IDEXX Laboratories, Montpellier, France) and WNV neutralizing antibody by neutralization assay. B) Distribution of veterinarians described in previous report (11). Human serum was considered positive if virus neutralization was observed at a titer of 1:10 and higher. WNV, West Nile virus.

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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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