Poliomyelitis Eradication in Burkina Faso: Progress in Epidemiological Surveillance of Acute Flaccid Paralysis (AFP) and Environmental Surveillance from 2020 to 2024
Abstract:
Surveillance for acute flaccid paralysis (AFP) and environmental surveillance is one of the pillars of the polio eradication strategy, particularly in contexts marked by insecurity and the circulation of vaccine-derived polioviruses type 2 (cVDPV2). Through a descriptive and retrospective cross-sectional study, we evaluated the performance of the surveillance system in Burkina Faso between 2020 and 2024, using data from AFP monitoring, active research and environmental monitoring. The indicators were analysed annually and by health district and compared to the standards of the Global Polio Eradication Initiative. A total of 6,243 AFP cases were reviewed; 70.6% were children under five years of age and 58% were boys. Seventy-four cVDPV2 were detected, mainly in 2020. The national rate of non-polio AFP remained above the expected threshold (more than 3 cases per 100,000 children < 15 years), while stool collection adequacy remained generally satisfactory (above 80%). However, several deficiencies remain, including active surveillance visits, contact sample collection, environmental monitoring, and timely delivery of samples to the laboratory. Overall, the system is satisfactory, but its effectiveness would improve in hard-to-reach areas to strengthen early detection and outbreak response.References:
[1]. OMS. Report by the Director-General. B158_23.
[2]. World Health Organization. Poliomyélite [Internet]. 2025 [cited 2025 Nov
13]. Available from: https://www.who.int/fr/news-room/fact-sheets/detail/poliomyelitis
[3].
Tangermann RH, Lamoureux C, Tallis G, et
al. The critical role of acute flaccid paralysis
surveillance in the Global Polio Eradication Initiative. Int Health.
2017;9:156-63.
[4]. Organisation
mondiale de la Santé. Note de synthèse de l’OMS sur les vaccins
antipoliomyélitiques mars 2016. Relev Epidemiol
Hebd [Internet]. 2016 [cited 2025 Jun 12]. Available from: https://iris.who.int/bitstream/handle/10665/254398/WER9112.pdf?sequence=1
[5]. OMS.
L’Afrique éradique le poliovirus sauvage | OMS | Bureau régional pour l’Afrique
[Internet]. 2026 [cited 2026 Mar 25]. Available from: https://www.afro.who.int/fr/news/lafrique-eradique-le-poliovirus-sauvage
[6]. OMS-AFRO. Polio virus detections. Base de données [Internet]. 2026
[cited 2026 Apr 1]. Available from: https://afrodim.shinyapps.io/new-virus-detections/
[7]. OMS-AFRO. Lignes
directrices pour la surveillance des poliovirus dans la Région africaine de
l’OMS [Internet]. 2025 [cited 2025 Mar 8]. Available from: https://www.afro.who.int/fr/publications/lignes-directrices-pour-la-surveillance-des-poliovirus-dans-la-region-africaine-OMS
[8].
OMS. Plan d’action mondial pour la
surveillance de la poliomyélite 2025-2026.
[9].
Comité national de certification. Rapport
2024 de mise à jour annuelle de la poliomyélite. Rapport annuel. Burkina Faso:
Ministère de la Santé; 2025 Apr.
[10].
Comité national de certification. Rapport
de mise à jour polio, 2022. Rapport annuel 2022. Burkina Faso: Ministère de la
Santé; 2022 May.
[11]. Namageyo-Funa
A, Greene SA, Henderson E, et al. Rapport hebdomadaire sur la morbidité et la
mortalité. 17 oct 2024. 2024 Oct 17:909-16.
[12]. World Health Organization. Standard Operating Procedures: Responding to
a Poliovirus Event or Outbreak. Version 4. 1st ed. Geneva: World Health
Organization; 2022.
[13].
Goni Dit Alassan MB, Abdoulaye ZM,
Alkassoum Salifou I, et al. Surveillance de la paralysie flasque aiguë au Niger
de 1998 à 2021. Med Trop Sante Int. 2024;4(4):mtsi.v4i4.2024.449.
[14].
Iseayembele RB, Boande LG, Epeleka MD, et
al. Evaluation de la performance du système de surveillance des paralysies
flasques aiguës dans la Province de Lomami de 2018 à 2022. 2025 Jun
15;4:752-63.
[15].
Tatou JG, Khalef I, Brahim ML, et al.
Epidémiologie des PFA et les performances du système de surveillance en
Mauritanie de 2008 à 2012. Pan Afr Med J. 2014;18.
doi:10.11604/pamj.2014.18.305.3362.
[16]. Njile DK,
Sadeuh-Mba SA, Endegue-Zanga MC, et al. Detection and
characterization of polioviruses originating from urban sewage in Yaounde and
Douala, Cameroon 2016-2017. BMC Res Notes. 2019;12:248.
[17]. Hamisu AW, Blake IM, Sume G, et al. Characterizing environmental
surveillance sites in Nigeria and their sensitivity to detect poliovirus and
other enteroviruses. J Infect Dis. 2020;225:1377-86.
[18]. Goni Dit
Alassan MB, Abdoulaye ZM, Alkassoum Salifou I, et al. Surveillance de la
paralysie flasque aiguë au Niger de 1998 à 2021. MTSI.
2024;4(4).
[19]. Ishagh EK, Ouédraogo MT, Oumarou B, et al. Tracking acute flaccid
paralysis in Niger: a half-decade epidemiological portrait (2016-2021). BMC
Infect Dis. 2025;25:79.
[20]. Simon A,
Punguyire D, Bangniyel J, et al. Evaluation of the
acute flaccid paralysis surveillance system performance in the Upper West
Region of Ghana from 2021 to 2023: a retrospective descriptive study. BMJ Open.
2025;15:e105835.
[21]. Manyanga D, Maseti E, Mokoena K, et al. Assessment of environmental surveillance for the detection of poliovirus implementation in the metropolitan districts of South Africa, 2020-2023. Pan Afr Med J. 2025;51:58.
