Case-control study of risk factors for human infection with influenza A(H7N9) virus in Jiangsu Province, China, 2013

Ai, Jing; Huang, Yong; Xu, Ke; Ren, D. F.; Qi, Xian; Ji, Hong; Ge, Ai‐hua; Dai, Qi; Li, J; Bao, Changjun; Tang, Fenyang; Shi, Guoqing; Shen, Tao; Zhu, Yefei; Zhou, Minghao; Wang, H

doi:10.2807/1560-7917.es2013.18.26.20510

Cited by 53 publications

(48 citation statements)

References 10 publications

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“…14,15 In our series, 70% of cases reported history of visits to markets with live poultry stalls, which is similar to figures in other published reports which ranged from approximately 50% to 75%. 3,14e17 Unfortunately, the exact mode of transmission, whether by inhalation of contaminated droplets/aerosol or by fomite transmission, in these patients remains obscure.…”

Section: Discussionsupporting

confidence: 92%

Epidemiology of human influenza A(H7N9) infection in Hong Kong

Leung

Lam

et al. 2017

Journal of Microbiology, Immunology and Infection

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Section: Discussionsupporting

confidence: 92%

Epidemiology of human influenza A(H7N9) infection in Hong Kong

Leung

Lam

et al. 2017

Journal of Microbiology, Immunology and Infection

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“…The latter were less common among our cases. The USII surveillance approach may therefore be useful in addressing new and emerging respiratory infections such as influenza A(H7N9) in China [23,24].…”

Section: Discussionmentioning

confidence: 99%

“…However, the challenge of emerging infections is not limited to just mass gatherings but is a persistent issue occurring in many settings, as evidenced by MERS-CoV [25] and influenza A(H7N9) in China [23,24]. We argue that USII surveillance may be useful for such rapidly evolving situations where the capability to detect emerging infections is required.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the surveillance system for undiagnosed serious infectious illness (USII) in intensive care units, England, 2011 to 2013

2014

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Emerging infections are a potential risk during mass gathering events due to the congregation of large numbers of international travellers. To mitigate this risk for the London 2012 Olympic and Paralympic Games, a sentinel surveillance system was developed to identify clusters of emerging infections presenting as undiagnosed serious infectious illness (USII) in intensive care units (ICUs). Following a six month pilot period, which had begun in January 2011, the surveillance was operational for a further 18 months spanning the Games. The surveillance system and reported USII cases were reviewed and evaluated after this 18 month operational period including assessment of positive predictive value (PPV), timeliness, acceptability and sensitivity of the system. Surveillance records were used to review reported cases and calculate the PPV and median reporting times of USII surveillance. Sensitivity was assessed through comparison with the pilot period. Participating clinicians completed a five-point Likert scale questionnaire about the acceptability of surveillance. Between 11 July 2011 and 10 January 2013, 34 cases were reported. Of these, 22 remained classified as USII at the time of the evaluation, none of which were still hospitalised. No clusters were identified. The 22 USII cases had no association with the Games, suggesting that they represented the background level of USII in the area covered by the surveillance. This corresponded to an annualised rate of 0.39 cases/100,000 population and a PPV of 65%. Clinicians involved in the surveillance reported high acceptability levels. The USII surveillance model could be a useful public health tool in other countries and during mass gathering events for identifying potential clusters of emerging infections.

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“…Based on the available data, however, there is still no report on the infection among the patients with cerebrovascular stroke. Nevertheless, several underlying diseases with cerebrovascular underpinnings, such as diabetes, are already accepted as the risk for severe H7N9 bird flu (6). At present, it is accepted that the patients with cerebrovascular stroke has to take special prevention for H7N9 bird flu.…”

Section: Dear Editor;mentioning

confidence: 97%