Influenza hospitalization epidemiology from a severe acute respiratory infection surveillance system in <scp>J</scp>ordan, <scp>J</scp>anuary 2008–<scp>F</scp>ebruary 2014

Alabdallat, Mohammad; Dawson, Patrick; Haddadin, Aktham; El‐Shoubary, Waleed; Dueger, Erica; Alsanouri, Tarek; Said, Mayar; Talaat, Maha

doi:10.1111/irv.12354

Cited by 27 publications

(38 citation statements)

References 7 publications

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“…Therefore, children have SARI were more likely to be involved in the surveillance. Similar results have been obtained in Mongolia [10], Philippines [11], Jordan [23]. Our findings further demonstrated that young children are vulnerable for both mild and severe respiratory infection, and the low influenza detection rate among 0–4 years age-group in both SARI and ILI patients foreshadow the need of expand the respiratory illness surveillance to more types of pathogens [12,24].…”

Section: Discussionsupporting

confidence: 88%

Comparison of Influenza Epidemiological and Virological Characteristics between Outpatients and Inpatients in Zhejiang Province, China, March 2011–June 2015

Cheng

Zhao

Liu

et al. 2017

IJERPH

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Given the rapid rate of global spread and consequently healthcare costs related to influenza, surveillance plays an important role in monitoring the emerging pandemics in China. However, the characteristics of influenza in Southeast of China haven’t been fully studied. Our study use the surveillance data collected from 16 sentinel hospitals across Zhejiang Province during March 2011 through June 2015, including the demographic information and respiratory specimens from influenza-like illness (ILI) patients and severe acute respiratory illness (SARI) patients. As analysis results, most SARI and ILI patients were in the age group of 0–4 years old (62.38% of ILI and 71.54% of SARI). The respiratory specimens have statistically significantly higher positive rate for influenza among ILI patients than that among SARI patients (p < 0.001). The comparison between ILI patients and SARI patients shows no statistically significantly difference in detecting influenza virus type and influenza A virus subtype. The SARI and ILI patients were found to be positively correlated for overall positive rate (r = 0.63, p < 0.001), the weekly percentage of A(H1N1)pdm09 (r = 0.51, p < 0.001), influenza B virus (r = 0.17, p = 0.013), and A/H3N2 (r = 0.43, p < 0.001) among all the positive numbers. Our study demonstrated that the activities of influenza virus, including its subtypes, had a similar temporal pattern between ILI and SARI cases.

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Section: Discussionsupporting

confidence: 88%

Comparison of Influenza Epidemiological and Virological Characteristics between Outpatients and Inpatients in Zhejiang Province, China, March 2011–June 2015

Cheng

Zhao

Liu

et al. 2017

IJERPH

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“…This positivity rate is much lower than that reported from neighbouring and Asian countries like Pakistan (24%), China (30%), Bangladesh (10%), and Jordan (9%) (14)(15)(16)(17), which have similar sentinel surveillance systems, and may suggest some underestimation. Nonetheless, it should be noted that after more than 3 decades of war and conflict, the system was able to detect and respond successfully to the novel influenza virus circulating during the influenza A (H1N1) pandemic in 2009.…”

Section: Discussioncontrasting

confidence: 68%

Capacity of the national influenza surveillance system in Afghanistan, a chronic conflict setting

Rasooly

Sahak

Saeed

et al. 2016

East Mediterr Health J

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Influenza surveillance is needed to monitor potential public health threats from the emergence of novel influenza viruses. This study assessed the capacity and performance of the national influenza surveillance system in Afghanistan from 2007 to 2014. Data were collected by review of hospital registers and the National Influenza Centre (NIC) database, interviews with influenza focal points at 9 influenza sentinel surveillance sites and the Centre staff, and observation of the sites. Out of 6900 specimens collected, influenza virus was detected in 253 (3.6%), predominantly H1N1 (63%); most of these cases were detected during the 2009 pandemic. The NIC had the capacity for virus isolation and PCR identification and performed reasonably until 2011 when support of the Naval American Medical Research Unit 3 was withdrawn. The limitations identified in the system indicated the need for: more complete data, improved technical competence and trained human resources, updating of the infrastructure/facilities, and the presence of standard operating procedures throughout surveillance. ‫والتحديات‬ ‫التقدم‬ ‫(أفغانستان):

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“…Although the influenza positivity among SARI cases was reported to be 8% in Oman, (4) and 9% in Jordan (18), both in the Eastern Mediterranean Region of WHO, the influenza positivity among SARI cases in Asia and Africa found in other studies (5,9,17,(19)(20)(21) ranged between 8-11%. The reasons why we found a higher percentage of influenza positivity amongst SARI cases could be attributed to the fact that we sampled 93% of all SARI cases that met the WHO case definition for SARI while in all those countries where a low (18). However, owing to the fact that we collected data for only one year and from only one district in Egypt, this information may not suffice to determine influenza seasonality in the country.…”

Section: Influenza Incidencementioning

confidence: 85%

Incidence of influenza virus-associated severe acute respiratory infection in Damanhour district, Egypt, 2013

Refaey

Hassan

Mansour

et al. 2016

East Mediterr Health J

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The epidemiology, seasonality and risk factors for influenza virus infection remains poorly defined in countries such as Egypt. Between 1 January and 31 December 2013, we used surveillance data on patients hospitalized with severe acute respiratory infection in three Egyptian government hospitals in Damanhour district to estimate the incidence rate of laboratory-confirmed seasonal influenza. Samples were taken from 1727 of 1856 patients; of these, 19% were influenza virus positive. The overall incidence of influenza virus-associated SARI during the study period was estimated to be 44 cases per 100 000 person-years (95% CI: 39-48). The highest incidence of 166 cases per 100 000 person year (95% CI: 125-220) was observed in children aged 2 to 4 years. The incidence of influenza-virus associated SARI cases in pregnant women was estimated to be 17.3 cases per 100 000 person-years (95% CI: 6-54). Majority of influenza virus-associated SARI occurred in autumn and early winter, and influenza A(H3N2) virus predominated. This was the first ever description of the epidemiology of seasonal influenza in Egypt. However, additional works are needed for greater understanding of influenza burden in Egypt. RÉSUMÉ L'épidémiologie, la saisonnalité et les facteurs de risque liés à l'infection par le virus de la grippe demeurent mal définis dans des pays tels que l'Égypte. Entre le 1 er janvier et le 31 décembre 2013, nous avons utilisé les données de la surveillance des patients hospitalisés pour une infection respiratoire aiguë sévère (IRAS) dans trois hôpitaux publics égyptiens dans le district de Damanhour afin d'estimer le taux d'incidence de la grippe saisonnière confirmée en laboratoire. Des prélèvements ont été réalisés sur 1727 des 1856 patients ; 19 % étaient positifs au virus de la grippe. L'incidence globale des IRAS associées au virus de la grippe durant la période étudiée s'élevait, selon les estimations, à 44 cas pour 100 000 personnes-années (IC 95 % : 39-48). L'incidence la plus élevée, en l'occurrence 166 cas pour 100 000 personnes-années (IC 95 % : 125-220), a été observée chez les enfants âgés de 2 à 4 ans. L'incidence des cas d'IRAS associées au virus de la grippe chez les femmes enceintes s'élevait, selon les estimations, à 17 cas pour 100 000 personnes-années (IC 95 % : 6-54). La majorité des cas d'IRAS associées au virus de la grippe sont survenus en automne et au début de l'hiver, et le virus de la grippe A(H3N2) était prédominant. Toutefois, des études complémentaires sont nécessaires pour mieux comprendre la charge de la grippe en Égypte. 2013

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Influenza hospitalization epidemiology from a severe acute respiratory infection surveillance system in Jordan, January 2008–February 2014

Cited by 27 publications

References 7 publications

Comparison of Influenza Epidemiological and Virological Characteristics between Outpatients and Inpatients in Zhejiang Province, China, March 2011–June 2015

Comparison of Influenza Epidemiological and Virological Characteristics between Outpatients and Inpatients in Zhejiang Province, China, March 2011–June 2015

Capacity of the national influenza surveillance system in Afghanistan, a chronic conflict setting

Incidence of influenza virus-associated severe acute respiratory infection in Damanhour district, Egypt, 2013

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