학술논문
Epidemiology of influenza in Nigeria: A secondary analysis of the sentinel surveillance data in Nigeria from 2010 – 2020
Document Type
article
Author
Adejoke Akano; Aisha Habib Sadauki; Adeyemi Mark Adelabu; Arhyel Malgwi; Motunrayo Fagbola; Oladipo Ogunbode; Aishat Usman; Celestine Ameh; Muhammad Shakir Balogun; Elsie Ilori; Sikiru Badaru; Adewusi Adetunji; Adedeji Adebayo; Nwando Mba; Akanimo Iniobong; Emmanuel Eze; Isaac Akerele; Bukar Grema; Oluwajimi Sodipo; Emeka Enemuo; Chinwe Ochu; Chikwe Ihekweazu; Ifedayo Adetifa
Source
Journal of Infection and Public Health, Vol 17, Iss 3, Pp 495-502 (2024)
Subject
Language
English
ISSN
1876-0341
Abstract
Background: Influenza is a leading cause of morbidity and mortality globally. Little is known of the true burden and epidemiology of influenza in Africa. Nigeria has a sentinel surveillance system for influenza virus (IFV). This study seeks to describe the epidemiological characteristics of influenza cases in Nigeria through secondary data analysis of the sentinel surveillance data from 2010 to 2020. Methodology: A retrospective secondary data analysis of data collected from patients with influenza-like illness (ILI) and severe acute respiratory infection (SARI) in the four Nigeria Influenza Sentinel Surveillance sites from January 2010 to December 2020. Data was cleaned and analyzed using Microsoft Excel and Epi info 7.2 for frequencies and proportions. The results of the analysis were summarized in tables and charts. Results: A total of 13,828 suspected cases of influenza were recorded at the sentinel sites during the study period. About 10.3% (1421/13,828) of these tested positive for IFV of which 1243 (87.5%) were ILI patients, 175 (12.3%) SARI patients, and 3 (0.2%) novel H1N1 patients. Males accounted for 54.2% (770/1421) of the confirmed cases. The median age of confirmed cases was 3 years (range: