Seasonal Activity of Influenza in Iran: Application of Influenza-like Illness Data from Sentinel Sites of Healthcare Centers during 2010 to 2015
- DOI
- 10.2991/j.jegh.2018.08.100How to use a DOI?
- Keywords
- CUSUM; influenza; Iran; outbreak; public health surveillance
- Abstract
This study aimed to predict seasonal influenza activity and detection of influenza outbreaks. Data of all registered cases (n = 53,526) of influenza-like illnesses (ILIs) from sentinel sites of healthcare centers in Iran were obtained from the FluNet web-based tool, World Health Organization (WHO), from 2010 to 2015. The status of the ILI activity was obtained from the FluNet and considered as the gold standard of the seasonal activity of influenza during the study period. The cumulative sum (CUSUM) as an outbreak detection method was used to predict the seasonal activity of influenza. Also, time series similarity between the ILI trend and CUSUM was assessed using the cross-correlogram. Of 7684 (14%) positive cases of influenza, about 71% were type A virus and 28% were type B virus. The majority of the outbreaks occurred in winter and autumn. Results of the cross-correlogram showed that there was a considerable similarity between time series graphs of the ILI cases and CUSUM values. However, the CUSUM algorithm did not have a good performance in the timely detection of influenza activity. Despite a considerable similarity between time series of the ILI cases and CUSUM algorithm in weekly lag, the seasonal activity of influenza in Iran could not be predicted by the CUSUM algorithm.
HIGHLIGHTS
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Activity of influenza in Iran could not be predicted by CUSUM algorithm.
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The majority of the outbreaks occurred in winter and autumn.
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CUSUM algorithm did not have a good performance in detection of influenza outbreaks.
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- Copyright
- © 2018 Atlantis Press International B.V.
- Open Access
- This is an open access article under the CC BY-NC license (http://creativecommons.org/licences/by-nc/4.0/).
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TY - JOUR AU - Seyedhadi Hosseini AU - Manoochehr Karami AU - Maryam Farhadian AU - Younes Mohammadi PY - 2018 DA - 2018/12/31 TI - Seasonal Activity of Influenza in Iran: Application of Influenza-like Illness Data from Sentinel Sites of Healthcare Centers during 2010 to 2015 JO - Journal of Epidemiology and Global Health SP - 29 EP - 33 VL - 8 IS - 1-2 SN - 2210-6014 UR - https://doi.org/10.2991/j.jegh.2018.08.100 DO - 10.2991/j.jegh.2018.08.100 ID - Hosseini2018 ER -