H7N9 Avian Influenza

Recent News

Jan 30, 2015

Flu Scan for Jan 30, 2015

Steady US flu activity
Second H7N9 case in Canada
Jan 29, 2015

News Scan for Jan 29, 2015

Flu vaccine in Canada
Egypt's H5N1 spike
H7N9 in China
Camera monitors in CDC labs
Jan 28, 2015

Flu Scan for Jan 28, 2015

Global flu update
H5N1 cases in Egypt, China
H7N9 cases in China continue
Jan 27, 2015

Flu Scan for Jan 27, 2015

H7N9 in Canada
More H7N9 in China
Jan 26, 2015

Canadian has first H7N9 case in North America

A British Columbia resident who recently returned from China is recovering from H7N9 avian flu.

Jan 23, 2015

Flu Scan for Jan 23, 2015

US flu still going strong
H7N9 in China
H5N1 case, death in Egypt
Jan 22, 2015

Avian Flu Scan for Jan 22, 2015

H7N9 cases in China
H5N1 death in Egypt
Jan 20, 2015

Flu Scan for Jan 20, 2015

H5N1 in Egypt
H7N9 in China
Jan 16, 2015

Flu Scan for Jan 16, 2015

Flu deaths in kids
European flu vaccine effectiveness
H7N9 cases in China
H5N1 death in Egypt
Jan 14, 2015

Avian Flu Scan for Jan 14, 2015

H5N1 death in Egypt
H7N9 cases in China
H5N8 in Utah wild bird

Resources & Literature


Jump to Recent Literature


Last updated Oct 8, 2014

Center of Excellence for Influenza Research and Surveillance (CEIRS) Resources

H7N9 PDF of epidemiologic curve, other case graphs, and map
PowerPoint slides of the H7N9 graphs and map



Latest Case Information

Frequently updated case list from FluTrackers
Graphs, charts, maps, and other info from FluTrackers
Case table and other info from Flu Wiki
Healthmap.org (search for H7N9 near top)
Disease outbreak news from WHO
Graphs, charts, maps, and other info from Virology Down Under
Google case map compiled by South China Morning Post
H7N9 infographic from Bloomberg News
Genetic analysis of virus from The Lancet (May 1, 2013)

Health Agency Documents

World Health Organization (WHO)

H7N9 page
Risk assessment (Jul 4, 2013)
H7N9 overview (May 31, 2013)
Latest case update (May 29, 2013)
Candidate vaccine viruses (May 26, 2014)
Joint mission report (May 18, 2013)
Lab guidance (May 10, 2013)
Surveillance recommendations (May 10, 2013)
Frequently asked questions (Feb 14, 2014)
Preliminary assessments of age and sex distribution (Apr 22, 2013)
RT-PCR protocol for H7N9 detection (Apr 15, 2013)
Background and summary (Apr 5, 2013)
Weekly report

US Centers for Disease Control and Prevention (CDC)

H7N9 page (updated Feb 12, 2014)
                                                                                                                           Frequently asked questions (Sep 9, 2014)
                                                                                                       Interim guidance on case definitions (Jan 10, 2014)
                                                                                          Study on risk factors (Jun 17, 2014)                                                                                                                    Top 10 pandemic response planning tips (May 30, 2013)
                                                                                   Emergence of avian influenza A(H7N9) virus causing severe human illness (May 10, 2013)                     Interim guidance for healthcare professionals (Jan 23, 2014)                                                                       Interim antiviral guidance (Sep 30, 2013)                                                                                                             Interim guidance on chemoprophylaxis with antiviral medications (Sep 30, 2013)                                 Testing recommendations for possible H7N9 infection in US (Jan 24, 2014)                                               H7N9 images

Department of Health and Human Services (HHS)

H7N9 page

Hong Kong Centre for Health Protection (CHP)
Avian influenza page

Weekly avian influenza report

Chinese Center for Disease Control and Prevention

H7N9 page
Daily updates
Frequently asked questions
Research highlights
Health tips for travelers

European Centre for Disease Prevention and Control (ECDC)

Risk assessment (Jan 27, 2014)
Epidemiologic update (Feb 7, 2014)
Case definition and case finding algorithm (Apr 26, 2013)
Genetic analysis from Euro Surveill (Apr 18, 2013)
Detection and clinical validation guidance from Euro Surveill (Apr 18, 2013)
Avian influenza page                                                                                                                                        Laboratory preparedness in EU/EEA for detection of H7N9 from Euro Surveill (Jan 30, 2014)

Public Health Agency of Canada (PHAC)

H7N9 page 
Travel health notice (Feb 17, 2014)
Public health notice (Oct 8, 2014)
Risk assessment (Oct 8, 2014)
Infection prevention and control guidance (Jun 24, 2013)

Biosafety advisory (Mar 17, 2014)

Public Health England (PHE)

Guidance for possible cases in travelers

World Organization for Animal Health (OIE)

Frequently asked questions
Statement on key role of live-bird markets (Apr 30, 2013)

Food and Agriculture Organization (FAO)

Frequently asked questions (May 27, 2013)

American Public Health Association (APHA)

What you should know now (Apr 19, 2013 blog post)


Helen Branswell (@HelenBranswell)
CDC: Flu (@CDCFlu)
Michael Coston (@Fla_Medic)
Martin Enserink (@martinenserink)
FluTrackers.com (@FluTrackers)
Jason Gale (@jwgale)
GISAID AI Digest (@AIDigest)
Gregory Hartl (@HaertlG)
HealthMap.org (@healthmap)
Crawford Kilian (@crof)
nprGlobalHealth (@nprGlobalHealth)
Lisa Schnirring (@lisaschnirring)
Marc Sprenger (@ECDC_MSprenger)
World Health Organization (@WHO)


Recent Literature

Chen Z, Baz M, Lu J, et al. Development of a high yield live attenuated H7N9 influenza vaccine that provides protection against homologous and heterologous H7 wild-type viruses in ferrets. J Virol 2014 (published online Apr 9)

Chen Z, Liu H, Lu J, et al. Asymptomatic, mild, and severe influenza A(H7N9) virus infection in humans, Guangzhou, China. Emerg Infect Dis 2014 (published online Aug 14)

Chen Z, Liu H, Lu J, et al. Asymptomatic, mild, and severe influenza A(H7N9) virus infection in humans, Guangzhou, China. Emerg Infect Dis 2014 Sep;20(9)

Cheng VCC, Tai JWM, Lee WM, et al. Infection control preparedness for human infection with influenza A H7N9 in Hong Kong. Infect Control Hosp Epidemiol 2015 Jan;36(1):87-92

de Wit E, Rasmussen AL, Feldmann F, et al. Influenza virus A/Anhui/1/2013 (H7N9) replicates efficiently in the upper and lower respiratory tracts of cynomolgus macaques. mBio 2014 Aug 12;5(4):e01331-14

Ding H, Chen Y, Yu Z, et al. A family cluster of three confirmed cases infected with avian influenza A (H7N9) virus in Zhejiang Province of China. BMC Infect Dis 2014 Dec 31;14:3846

Ding H, Xie L, Sun Z, et al. Epidemiologic characterization of 30 confirmed cases of human infection with avian influenza A(H7N9) virus in Hangzhou, China. BMC Infect Dis 2014 Mar 31;14:175

Duan Y, Gu H, Chen R, et al. Response of mice and ferrets to a monovalent influenza A (H7N9) split vaccine. PLoS One 2014 Jun 17;9(6):e99322

Feng L, Wu JT, Liu X, et al. Clinical severity of human infections with avian influenza A(H7N9) virus, China, 2013/14. Euro Surveill 2014 Dec 11;19(49):pii=20984

Fuller T, Havers F, Xu C, et al. Identifying areas with a high risk of human infection with the avian influenza A (H7N9) virus in East Asia. J Infect 2014 (published online Mar 15)

Gong Z, Lv H, Ding H, et al. Epidemiology of the avian influenza A (H7N9) outbreak in Zhejiang Province, China. BMC Infect Dis 2014;14:244 (published online May 8)

Han J, Liu J, Wang L, et al. Persistent detection of avian influenza A/H7N9 virus among poultry in Huzhou City, China, in the summer of 2013. Int J Infect Dis 2014 (published online Jul 14)

He Y, Liu P, Tang S, et al. Live poultry market closure and control of avian influenza A(H7N9), Shanghai, China. Emerg Infect Dis 2014 (published online Jun 10)

Hu J, Zhu Y, Zhao B, et al. Limited human-to-human transmission of avian influenza A(H7N9) virus, Shanghai, China, March to April 2013. Euro Surveill 2014 Jun 26;19(25):pii=20838

Huang F, Guo J, Zou Z, et al. Angiotensin II plasma levels are linked to disease severity and predict fatal outcomes in H7N9-infected patients. Nature Comm 2014;5(3595) (published online May 6)

Ji H, Gu Q, Chen L-l, et al. Epidemiological and clinical characteristics and risk factors for death of patients with avian influenza A H7N9 virus infection from Jiangsu Province, Eastern China. PLoS One 2014 Mar 4;9(3):e89581

Ke C, Lu J, Wu J, et al. Circulation of reassortant influenza A(H7N9) viruses in poultry and humans, Guangdong province, China, 2013. Emerg Infect Dis 2014 (published online Aug 27)

Ku KB, Park EH, Yum J, et al. Transmissibility of novel H7N9 and H9N2 avian influenza viruses between chickens and ferrets. Virology 2014 Feb;450-1:316-23

Li Q, Zhou L, Zhou M, et al. Epidemiology of human infections with avian influenza A(H7N9) virus in China. N Engl J Med 2014 Feb 6;370(6):520-32

Ling F, Chen E, Miao Z, et al. Hypothesis on the source, transmission and characteristics of infection of avian influenza A (H7N9) virus  based on analysis of field epidemiological investigation and gene sequence analysis. Zoonoses Public Health 2014 (published online Mar 13)

Liu B, Havers F, Chen E, et al. Risk factors for influenza A(H7N9) disease — China, 2013. Clin Infect Dis 2014 (published online Jun 13)

Liu T, Bi Z, Wang X, et al. One family cluster of avian influenza A(H7N9) virus infection in Shandong, China. BMC Infect Dis 2014 Feb 21;14(98)

Lu H, Zhang C, Qian G, et al. An analysis of microbiota-targeted therapies in patients with avian influenza virus subtype H7N9 infection. BMC Infec Dis 2014 Jul 2;14:359

Lu J, Wu J, Guan D, et al. Genetic changes of reemerged influenza A(H7N9) viruses, China. (Letter) Emerg Infect Dis 2014 (published online May 23)

Lu J, Wu J, Zeng X, et al. Continuing reassortment leads to the genetic diversity of influenza H7N9 in Guangdong, China. J Virol 2014 (published online May 14)

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