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The substantial hospitalization burden of influenza in central China: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012
BACKGROUND: Published data on influenza in severe acute respiratory infection (SARI) patients are limited. We conducted SARI surveillance in central China and estimated hospitalization rates of SARI attributable to influenza by viral type/subtype. METHODS: Surveillance was conducted at four hospital...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Blackwell Publishing Ltd
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4177798/ https://www.ncbi.nlm.nih.gov/pubmed/24209711 http://dx.doi.org/10.1111/irv.12205 |
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author | Yu, Hongjie Huang, Jigui Huai, Yang Guan, Xuhua Klena, John Liu, Shali Peng, Youxing Yang, Hui Luo, Jun Zheng, Jiandong Chen, Maoyi Peng, Zhibin Xiang, Nijuan Huo, Xixiang Xiao, Lin Jiang, Hui Chen, Hui Zhang, Yuzhi Xing, Xuesen Xu, Zhen Feng, Zijian Zhan, Faxian Yang, Weizhong Uyeki, Timothy M Wang, Yu Varma, Jay K |
author_facet | Yu, Hongjie Huang, Jigui Huai, Yang Guan, Xuhua Klena, John Liu, Shali Peng, Youxing Yang, Hui Luo, Jun Zheng, Jiandong Chen, Maoyi Peng, Zhibin Xiang, Nijuan Huo, Xixiang Xiao, Lin Jiang, Hui Chen, Hui Zhang, Yuzhi Xing, Xuesen Xu, Zhen Feng, Zijian Zhan, Faxian Yang, Weizhong Uyeki, Timothy M Wang, Yu Varma, Jay K |
author_sort | Yu, Hongjie |
collection | PubMed |
description | BACKGROUND: Published data on influenza in severe acute respiratory infection (SARI) patients are limited. We conducted SARI surveillance in central China and estimated hospitalization rates of SARI attributable to influenza by viral type/subtype. METHODS: Surveillance was conducted at four hospitals in Jingzhou, China from 2010 to 2012. We enrolled hospitalized patients who had temperature ≥37·3°C and at least one of: cough, sore throat, tachypnea, difficulty breathing, abnormal breath sounds on auscultation, sputum production, hemoptysis, chest pain, or chest radiograph consistent with pneumonia. A nasopharyngeal swab was collected from each case-patient within 24 hours of admission for influenza testing by real-time reverse transcription PCR. RESULTS: Of 17 172 SARI patients enrolled, 90% were aged <15 years. The median duration of hospitalization was 5 days. Of 16 208 (94%) SARI cases tested, 2057 (13%) had confirmed influenza, including 1427 (69%) aged <5 years. Multiple peaks of influenza occurred during summer, winter, and spring months. Influenza was associated with an estimated 115 and 142 SARI hospitalizations per 100 000 during 2010–2011 and 2011–2012 [including A(H3N2): 55 and 44 SARI hospitalizations per 100 000; pandemic A(H1N1): 33 SARI hospitalizations per 100 000 during 2010–2011; influenza B: 26 and 98 hospitalizations per 100 000], with the highest rate among children aged 6–11 months (3603 and 3805 hospitalizations per 100 000 during 2010–2011 and 2011–2012, respectively). CONCLUSIONS: In central China, influenza A and B caused a substantial number of hospitalizations during multiple periods each year. Our findings strongly suggest that young children should be the highest priority group for annual influenza vaccination in China. |
format | Online Article Text |
id | pubmed-4177798 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Blackwell Publishing Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-41777982014-10-29 The substantial hospitalization burden of influenza in central China: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012 Yu, Hongjie Huang, Jigui Huai, Yang Guan, Xuhua Klena, John Liu, Shali Peng, Youxing Yang, Hui Luo, Jun Zheng, Jiandong Chen, Maoyi Peng, Zhibin Xiang, Nijuan Huo, Xixiang Xiao, Lin Jiang, Hui Chen, Hui Zhang, Yuzhi Xing, Xuesen Xu, Zhen Feng, Zijian Zhan, Faxian Yang, Weizhong Uyeki, Timothy M Wang, Yu Varma, Jay K Influenza Other Respir Viruses Original Articles BACKGROUND: Published data on influenza in severe acute respiratory infection (SARI) patients are limited. We conducted SARI surveillance in central China and estimated hospitalization rates of SARI attributable to influenza by viral type/subtype. METHODS: Surveillance was conducted at four hospitals in Jingzhou, China from 2010 to 2012. We enrolled hospitalized patients who had temperature ≥37·3°C and at least one of: cough, sore throat, tachypnea, difficulty breathing, abnormal breath sounds on auscultation, sputum production, hemoptysis, chest pain, or chest radiograph consistent with pneumonia. A nasopharyngeal swab was collected from each case-patient within 24 hours of admission for influenza testing by real-time reverse transcription PCR. RESULTS: Of 17 172 SARI patients enrolled, 90% were aged <15 years. The median duration of hospitalization was 5 days. Of 16 208 (94%) SARI cases tested, 2057 (13%) had confirmed influenza, including 1427 (69%) aged <5 years. Multiple peaks of influenza occurred during summer, winter, and spring months. Influenza was associated with an estimated 115 and 142 SARI hospitalizations per 100 000 during 2010–2011 and 2011–2012 [including A(H3N2): 55 and 44 SARI hospitalizations per 100 000; pandemic A(H1N1): 33 SARI hospitalizations per 100 000 during 2010–2011; influenza B: 26 and 98 hospitalizations per 100 000], with the highest rate among children aged 6–11 months (3603 and 3805 hospitalizations per 100 000 during 2010–2011 and 2011–2012, respectively). CONCLUSIONS: In central China, influenza A and B caused a substantial number of hospitalizations during multiple periods each year. Our findings strongly suggest that young children should be the highest priority group for annual influenza vaccination in China. Blackwell Publishing Ltd 2014-01 2013-11-10 /pmc/articles/PMC4177798/ /pubmed/24209711 http://dx.doi.org/10.1111/irv.12205 Text en © 2013 The Authors. Influenza and Other Respiratory Viruses Published by John Wiley & Sons Ltd. http://creativecommons.org/licenses/by/3.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Articles Yu, Hongjie Huang, Jigui Huai, Yang Guan, Xuhua Klena, John Liu, Shali Peng, Youxing Yang, Hui Luo, Jun Zheng, Jiandong Chen, Maoyi Peng, Zhibin Xiang, Nijuan Huo, Xixiang Xiao, Lin Jiang, Hui Chen, Hui Zhang, Yuzhi Xing, Xuesen Xu, Zhen Feng, Zijian Zhan, Faxian Yang, Weizhong Uyeki, Timothy M Wang, Yu Varma, Jay K The substantial hospitalization burden of influenza in central China: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012 |
title | The substantial hospitalization burden of influenza in central China: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012 |
title_full | The substantial hospitalization burden of influenza in central China: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012 |
title_fullStr | The substantial hospitalization burden of influenza in central China: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012 |
title_full_unstemmed | The substantial hospitalization burden of influenza in central China: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012 |
title_short | The substantial hospitalization burden of influenza in central China: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012 |
title_sort | substantial hospitalization burden of influenza in central china: surveillance for severe, acute respiratory infection, and influenza viruses, 2010–2012 |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4177798/ https://www.ncbi.nlm.nih.gov/pubmed/24209711 http://dx.doi.org/10.1111/irv.12205 |
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