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 27, Number 2—February 2021
Dispatch

Anopheles stephensi Mosquitoes as Vectors of Plasmodium vivax and falciparum, Horn of Africa, 2019

Fitsum G. Tadesse1Comments to Author , Temesgen Ashine1, Hiwot Teka, Endashaw Esayas, Louisa A. Messenger, Wakweya Chali, Lisette Meerstein-Kessel, Thomas Walker, Sinknesh Wolde Behaksra, Kjerstin Lanke, Roel Heutink, Claire L. Jeffries, Daniel Abebe Mekonnen, Elifaged Hailemeskel, Surafel K. Tebeje, Temesgen Tafesse, Abrham Gashaw, Tizita Tsegaye, Tadele Emiru, Kigozi Simon, Eyuel Asemahegn Bogale, Gedeon Yohannes, Soriya Kedir, Girma Shumie, Senya Asfer Sabir, Peter Mumba, Dereje Dengela, Jan H. Kolaczinski, Anne Wilson, Thomas S. Churcher, Sheleme Chibsa, Matthew Murphy, Meshesha Balkew, Seth Irish, Chris Drakeley, Endalamaw Gadisa, and Teun Bousema
Author affiliations: Armauer Hansen Research Institute, Addis Ababa, Ethiopia (F.G. Tadesse, T. Ashine, H. Teka, E. Esayas, W. Chali, S.W. Behaksra, D.A. Mekonnen, E. Hailemeskel, S.K. Tebeje, T. Tafesse, A. Gashaw, T. Tsegaye, T. Emiru, E.A. Bogale, G. Shumie, S.A. Sabir, E. Gadisa); Radboud University Medical Center, Nijmegen, the Netherlands (F.G. Tadesse, L. Meerstein-Kessel, K. Lanke, R. Heutink, E. Hailemeskel, S.K. Tebeje, T. Bousema); Addis Ababa University, Addis Ababa (F.G. Tadesse, D.A. Mekonnen, E. Hailemeskel); United States Agency for International Development, Addis Ababa (H. Teka, S. Chibsa, M. Murphy); London School of Hygiene and Tropical Medicine, London, UK (L.A. Messenger, T. Walker, C.L. Jeffries, K. Simon, C. Drakeley, T. Bousema); President’s Malaria Initiative VectorLink Ethiopia Project, Addis Ababa (G. Yohannes, P. Mumba, M. Balkew); Oromia Regional Health Bureau, Adama, Ethiopia (S. Kedir); President’s Malaria Initiative VectorLink Project, Rockville, Maryland, USA (D. Dengela); World Health Organization, Geneva, Switzerland (J.H. Kolaczinski); Liverpool School of Tropical Medicine, Liverpool, UK; (A. Wilson); Imperial College London, London (T.S. Churcher); United States President’s Malaria Initiative, Atlanta, Georgia, USA (S. Chibsa, M. Murphy, S. Irish); Centers for Disease Control and Prevention, Atlanta (S. Irish)

Main Article

Table 2

Characteristics of blood meals and mosquito feeding outcomes in study of Anopheles stephensi mosquitoes as vectors of Plasmodium vivax and falciparum, Horn of Africa, 2019*

Characteristic Plasmodium species
P. vivax, n = 36 P. falciparum, n = 7 Mixed, n = 4
Parasites/µL, median (IQR) 7,783 (3,603–13,440) 2,431 (867–8,756) 4,516 (1,589–10,563)
Gametocyte positivity, no. positive/no. sampled (%) 25/34 (73.5) 1/7 (14.3) 1/4 (25.0).
Infectious feeds, no. positive/no. sampled (%) 26/36 (72.2) 1/7 (14.3) 2/4 (50.0)
Infected An. stephensi mosquitoes, no. positive/no. sampled (%) 446/849 (52.5 2.2 36/104 (34.6)
Infected An arabiensis mosquitoes, no. positive/no. sampled (%) 452/1,000 (45.2) 18/200 (9.0) 45/122 (36.9)
Oocysts in infected An. arabiensis mosquito midgut, mean (range) 22.8 (1–115) NA 3.1 (1–22)
Oocysts in infected An. stephensi mosquito midgut, mean (range) 24.1 (1–105) NA 2.8 (1–13)

*Parasite and gametocyte densities were determined by microscopy; IQR, Interquartile range; NA, not available.

Main Article

1These authors contributed equally to this article.

Page created: January 08, 2021
Page updated: January 24, 2021
Page reviewed: January 24, 2021
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.
file_external