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Influenza surveillance capacity improvements in Africa during 2011‐2017

Ledor S. Igboh 1, 2, * Meredith Mcmorrow 1, 3 Stefano Tempia 1, 4, 5, 6 Gideon O. Emukule 7 Ndahwouh Talla Nzussouo 1, 5, 8 Margaret Mccarron 1 Thelma Williams 1 Vashonia Weatherspoon 1 Ann Moen 1 Derrar Fawzi 9 Richard Njouom 10 Emmanuel Nakoune 11 Coulibaly Dauoda 12 Hugo Kavunga-Membo 13 Mary Okeyo 14 Jean-Michel Heraud 15 Ivan Kiggundu Mambule 16 Samba Ousmane Sow 17 Almiro Tivane 18 Adamou Lagare 19 Adedeji Adebayo 20 Ndongo Dia 21 Vida Mmbaga 22 Issaka Maman 23 Julius Lutwama 24 Paul Simusika 25 Sibongile Walaza 4, 6, 26 Punam Mangtani 2 Patrick Nguipdop-Djomo 2 Cheryl Cohen 4, 6, 26 Eduardo Azziz-Baumgartner 1 Anise Network Working Group 
* Corresponding author
8 CDC - Centers for Disease Control and Prevention [Accra, Ghana]
CDC - Centers for Disease Control and Prevention
16 MLW - Malawi Liverpool Wellcome Trust Clinical Research Programme
LSTM - Liverpool School of Tropical Medicine, University of Liverpool, Wellcome Trust, University of Malawi
Abstract : Background Influenza surveillance helps time prevention and control interventions especially where complex seasonal patterns exist. We assessed influenza surveillance sustainability in Africa where influenza activity varies and external funds for surveillance have decreased. Methods We surveyed African Network for Influenza Surveillance and Epidemiology (ANISE) countries about 2011-2017 surveillance system characteristics. Data were summarized with descriptive statistics and analyzed with univariate and multivariable analyses to quantify sustained or expanded influenza surveillance capacity in Africa. Results Eighteen (75%) of 24 ANISE members participated in the survey; their cumulative population of 710 751 471 represent 56% of Africa's total population. All 18 countries scored a mean 95% on WHO laboratory quality assurance panels. The number of samples collected from severe acute respiratory infection case-patients remained consistent between 2011 and 2017 (13 823 vs 13 674 respectively) but decreased by 12% for influenza-like illness case-patients (16 210 vs 14 477). Nine (50%) gained capacity to lineage-type influenza B. The number of countries reporting each week to WHO FluNet increased from 15 (83%) in 2011 to 17 (94%) in 2017. Conclusions Despite declines in external surveillance funding, ANISE countries gained additional laboratory testing capacity and continued influenza testing and reporting to WHO. These gains represent important achievements toward sustainable surveillance and epidemic/pandemic preparedness.
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Submitted on : Tuesday, June 8, 2021 - 4:13:14 PM
Last modification on : Monday, November 22, 2021 - 5:46:02 PM
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Ledor S. Igboh, Meredith Mcmorrow, Stefano Tempia, Gideon O. Emukule, Ndahwouh Talla Nzussouo, et al.. Influenza surveillance capacity improvements in Africa during 2011‐2017. Influenza and Other Respiratory Viruses, Wiley Open Access, 2020, 15 (4), pp.495-505. ⟨10.1111/irv.12818⟩. ⟨pasteur-03254168⟩



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