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The epidemiological pattern of seasonal influenza in four sentinel sites in Iraq
Ahmed Hasan Radhi1, Ziyad Hazim Ibrahim2, Riyadh Alhilifi2
1CDC, MoH Baghdad Iraq.
Introduction:
Influenza is an acute viral infection with significant morbidity and mortality. It occurs annually each winter, which is called seasonal influenza, and is preventable through safe vaccine.
Aim:
The aim of this work is to know the epidemiological pattern of patients with seasonal influenza in Iraqi sentinel sites.
Methods:
A cross-sectional study was carried out on records of patients who attended four sentinel sites and registered to have influenza-like illness (ILI) or severe acute respiratory infection (SARI), and laboratory investigated.
Results:
The total number of cases was 1124; 36.2% of them aged 19-39 years; 53.9% were female; 74.9% lived in urban areas; 64.3% diagnosed as ILI; and 35.7% as SARI; 15.9% had diabetes, 12.7% had heart disease, 4.8% had asthma, 3% had a chronic lung disease, and 2% had hematological disease; 94.6% did not get influenza vaccine. About COVID-19 vaccine, 69.4% were not vaccinated, 3.5% got only one dose, and 27.1% completed two doses. Only the SARI cases needed admission; among them, 95.7% were cured. 6.5% were diagnosed with influenza-A virus, 26.1% had COVID-19, and 67.5% were negative. Among those with influenza, 97.3% had H3N2 subtype and 2.7% had H1N1 pdm09.
Conclusions:
The percentage of influenza virus in Iraq is relatively small. The age, classification of case (ILI or SARI), having diabetes, heart disease, or immunological disease, and taking COVID-19 vaccine have a significant association with influenza.
Recommendations:
It is needed for similar sentinel sites in other health directorates and for rising health education about seasonal influenza and its vaccine.
