Detecting Spread of Avian Influenza A(H7N9) Virus Beyond China

Millman, Alexander J.; Havers, Fiona; Iuliano, A. Danielle; Davis, C. Todd; Sar, Borann; Sovann, Ly; Chin, Savuth; Corwin, Andrew L.; Vongphrachanh, Phengta; Douangngeun, Bounlom; Lindblade, Kim A.; Chittaganpitch, Malinee; Kaewthong, Viriya; Kile, James C.; Nguyen, Hien T.; Pham, Dong V.; Donis, Ruben O.; Widdowson, Marc-Alain

doi:10.3201/eid2105.141756

Back to Previous Page

- Add this to...
- Twitter
- Facebook
- Google Bookmarks
- LinkedIn

Detecting Spread of Avian Influenza A(H7N9) Virus Beyond China

Published Date:

May 2015

Publisher's site:

http://dx.doi.org/10.3201/eid2105.141756 New Site Icon

Source:

Emerg Infect Dis. 21(5):741-749.

[PDF-2.34 MB]

Details:

Personal Authors:

Millman, Alexander J. ; Havers, Fiona ; Iuliano, A. Danielle ; Davis, C. Todd ; Sar, Borann ; ... More ▼

Keywords:

[+]

Description:

During February 2013-March 2015, a total of 602 human cases of low pathogenic avian influenza A(H7N9) were reported; no autochthonous cases were reported outside mainland China. In contrast, since highly pathogenic avian influenza A(H5N1) reemerged during 2003 in China, 784 human cases in 16 countries and poultry outbreaks in 53 countries have been reported. Whether the absence of reported A(H7N9) outside mainland China represents lack of spread or lack of detection remains unclear. We compared epidemiologic and virologic features of A(H5N1) and A(H7N9) and used human and animal influenza surveillance data collected during April 2013-May 2014 from 4 Southeast Asia countries to assess the likelihood that A(H7N9) would have gone undetected during 2014. Surveillance in Vietnam and Cambodia detected human A(H5N1) cases; no A(H7N9) cases were detected in humans or poultry in Southeast Asia. Although we cannot rule out the possible spread of A(H7N9), substantial spread causing severe disease in humans is unlikely.

Document Type:

Journal Article

Collection(s):

Emerging Infectious Diseases
CDC Public Access

Main Document Checksum:

[+]

Supporting Files:

	license.txt	text/plain
	14-1756-F1.gif	image/gif
	14-1756-F1.jpg	image/jpeg
	14-1756-F2.gif	image/gif
	14-1756-F2.jpg	image/jpeg
	14-1756-F3.gif	image/gif
	14-1756-F3.jpg	image/jpeg
	14-1756-Techapp-s1.pdf	application/pdf
	14-1756.nxml	text/plain

No Related Documents.

You May Also Like:

Cluster of Human Infections with Avian Influenza A (H7N9) Cases: A Temporal and Spatial Analysis

Personal Author:

Zhang, Yi; Shen, Zhixiong; Ma, Chunna; Jiang, Chengsheng; Feng, Cindy; Shankar, Nivedita; Yang, Peng; Sun, Wenjie; Wang, Quanyi;

Published:

Jan 15 2015

Source:

Int J Environ Res Public Health. 2015; 12(1):816-828.

Description:

This study aims to describe the spatial and temporal characteristics of human infections with H7N9 virus in China using data from February 2013 to March 2014 from the websites of every province's Population and Family Planning Commission.|A human inf...

File Type:

[PDF - 2.83 MB]
Clusters of Human Infection and Human-to-Human Transmission of Avian Influenza A(H7N9) Virus, 2013–2017

Personal Author:

Zhou, Lei; Chen, Enfu; Bao, Changjun; Xiang, Nijuan; Wu, Jiabing; Wu, Shengen; Shi, Jian; Wang, Xianjun; Zheng, Yaxu; Zhang, Yi; Ren, Ruiqi; Greene, Carolyn M.; Havers, Fiona; Iuliano, A. Danielle; Song, Ying; Li, Chao; Chen, Tao; Wang, Yali; Li, Dan; Ni, Daxin; Zhang, Yanping; Feng, Zijian; Uyeki, Timothy M.; Li, Qun;

Published:

Feb 17 2018

Source:

Emerg Infect Dis. 24(2):397-400.

Description:

To detect changes in human-to-human transmission of influenza A(H7N9) virus, we analyzed characteristics of 40 clusters of case-patients during 5 epidemics in China in 2013-2017. Similarities in number and size of clusters and proportion of clusters ...

File Type:

[PDF - 384.83 KB]
Molecular Evolution, Diversity, and Adaptation of Influenza A(H7N9) Viruses in China

Personal Author:

Lu, Jing; Raghwani, Jayna; Pryce, Rhys; Bowden, Thomas A.; Thézé, Julien; Huang, Shanqian; Song, Yingchao; Zou, Lirong; Liang, Lijun; Bai, Ru; Jing, Yi; Zhou, Pingping; Kang, Min; Yi, Lina; Wu, Jie; Pybus, Oliver G.; Ke, Changwen;

Published:

Oct 2018

Source:

Emerg Infect Dis. 24(10):1795-1805.

Description:

The substantial increase in prevalence and emergence of antigenically divergent or highly pathogenic influenza A(H7N9) viruses during 2016-17 raises concerns about the epizootic potential of these viruses. We investigated the evolution and adaptation...

File Type:

[PDF - 3.25 MB]
Avian Influenza A(H7N9) Virus Screening in Patients with Fever and Flu-Like Symptoms in a Tertiary Hospital in an Area with Confirmed Cases

Personal Author:

Wu, Chao; Huang, Rui; Chen, Jianjun; Gu, Qin; Zhu, Bin; Wang, Jun; Zhang, Kui; Chen, Quanjiao; Xiong, Chaochao; Liu, Yong; Li, Jiequan; Zhou, Yi-Hua; Ding, Yitao;

Published:

Dec 18 2013

Source:

PLoS One. 2013; 8(12).

Description:

Novel avian influenza A(H7N9) virus was isolated in fatal patients in Yangtze River Delta of China in March 2013. We aimed to screen the virus in febrile patients in a tertiary hospital in an area with confirmed cases. Throat-swab specimens collected...

File Type:

[PDF - 421.79 KB]
Human Influenza A(H7N9) Virus Infection Associated with Poultry Farm, Northeastern China

Personal Author:

Fan, Ming; Huang, Biao; Wang, Ao; Deng, Liquan; Wu, Donglin; Lu, Xinrong; Zhao, Qinglong; Xu, Shuang; Havers, Fiona; Wang, Yanhui; Wu, Jing; Yin, Yuan; Sun, Bingxin; Yao, Jianyi; Xiang, Nijuan;

Published:

Nov 2014

Source:

Emerg Infect Dis. 20(11):1902-1905.

Description:

We report on a case of human infection with influenza A(H7N9) virus in Jilin Province in northeastern China. This case was associated with a poultry farm rather than a live bird market, which may point to a new focus for public health surveillance an...

File Type:

[PDF - 448.03 KB]