Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 26, Number 10—October 2020

Silent Circulation of Rift Valley Fever in Humans, Botswana, 2013–2014

Claire E. Sanderson, Ferran Jori, Naazneen Moolla, Janusz T. Paweska, Nesredin Oumer, and Kathleen A. AlexanderComments to Author 
Author affiliations: Virginia Tech, Blacksburg, Virginia, USA, and Chobe Research Institute, Center for African Resources:; Communities, Animals, and Land Use, Kasane, Botswana (C.E. Sanderson, K.A. Alexander); Animals, Health, Territories, Risks, Ecosystems Unit, Université de Montpellier, Montpellier, France, and Botswana College of Agriculture, Gaborone, Botswana (F. Jori); National Institute of Communicable Diseases, Sandringham-Johannesburg, South Africa (N. Moolla, J.T. Paweska); University of the Witswatersrand, Johannesburg (J.T. Paweska); Botswana Ministry of Health, Gaborone (N. Oumer).

Main Article

Table 2

Comparison of Rift Valley fever virus IgG prevalence by age group, Botswana*

Age group Age, y %, 95% CI Adolescent Young adult Adult Middle-aged Aged
Adolescent 13–19 2 (0–8) NA NA NA NA NA
Young adult 20–24 2 (0–5) 1.00 NA NA NA NA
Adult 25–44 5 (3–6) 0.404 0.158 NA NA NA
Middle-aged 45–64 9 (5–15) 0.0814 0.008 0.07 NA NA
Aged 65–79 40 (20–64) <0.001 <0.001 <0.001 0.007 NA
50 (22–78)
*Bold indicates significance (p value <0.05 by χ² test). NA, not applicable.

Main Article

Page created: June 30, 2020
Page updated: September 17, 2020
Page reviewed: September 17, 2020
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.