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Volume 31, Number 4—April 2025
Dispatch

Yaws Circulating in Nonhuman Primates, Uganda and Rwanda

Tony L. GoldbergComments to Author , Leah A. Owens, Julius Nziza, Richard Muvunyi, Jessica M. Rothman, Patrick Omeja, and Colin A. Chapman
Author affiliation: University of Wisconsin–Madison, Madison, Wisconsin, USA (T.L. Goldberg, L.A. Owens); Gorilla Doctors, Musanze, Rwanda (J. Nziza); Rwanda Development Board, Kigali, Rwanda (R. Muvunyi); Hunter College of City University of New York, New York, New York, USA (J.M. Rothman); New York Consortium in Evolutionary Primatology, New York (J.M. Rothman); Makerere University, Kampala, Uganda (P. Omeja); Vancouver Island University, Nanaimo, British Columbia, Canada (C.A. Chapman)

Main Article

Table 1

Seroprevalence of Treponema pallidum pertenue in nonhuman primates from Uganda and Rwanda*

Species Country Location No. tested No. positive Prevalence, % (95% CI)
Black-and-white colobus (Colobus guereza) Uganda Kibale NP 9 1 11.1 (0.0–45.7)
Eastern chimpanzee (Pan troglodytes schweinfurthii) Uganda Kibale NP 6 1 16.7 (1.1–58.2)
Golden monkey (Cercopithecus kandti) Rwanda Volcanoes NP 2 0 0 (0.0–71.0)
L'Hoest’s monkey (Allocrocebus lhoesti) Rwanda Nyungwe NP 7 0 0 (0.0–40.4)
Mountain gorilla (Gorilla beringei beringei)
 Rwanda
 Volcanoes NP
 6
 0
 0 (0.0–44.3)
Olive baboon (Papio anubis) Both All locations 26 20 76.9 (57.6–89.3)
Uganda Kibale NP 17 11 64.7 (41.2–82.8)
Rwanda
 Akagera NP
 9
 9
 100 (65.5–100)
Red colobus (Piliocolobus tephrosceles) Uganda Kibale NP 21 2 9.5 (1.5–30.1)
Red-tailed guenon (Cercopithecus ascanius)
 Uganda
 Kibale NP
 11
 6
 54.6 (28.0–78.8)
Vervet (Chlorocebus pygerythrus) Both All locations 15 4 26.7 (10.5–52.4)
Uganda Nabugabo 3 1 33.33 (5.6–79.8)
Rwanda Kigali 8 1 12.5 (0.1–49.2)
Rwanda Nyungwe NP 2 0 0 (0.00–71.0)
Rwanda
 Akagera NP
 2
 2
 100 (29.0–100)
Total, Uganda Uganda All locations 67 22 32.8 (22.8–44.8)
Total, Rwanda Rwanda All locations 36 12 33.3 (20.1–49.8)
Total, Uganda and Rwanda Both All locations 103 34 33.0 (24.7–42.6)

*NP, national park.

Main Article

Page created: February 21, 2025
Page updated: March 24, 2025
Page reviewed: March 24, 2025
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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