Nosocomial Co-Transmission of Avian Influenza A(H7N9) and A(H1N1)pdm09 Viruses between 2 Patients with Hematologic Disorders

Chen, Huazhong; Liu, Shelan; Liu, Jun; Chai, Chengliang; Mao, Haiyan; Yu, Zhao; Tang, Yuming; Zhu, Geqin; Chen, Haixiao X.; Zhu, Chengchu; Shao, Hui; Tan, Shuguang; Wang, Qianli; Bi, Yuhai; Zou, Zhen; Liu, Guang; Jin, Tao; Jiang, Chengyu; Gao, George F.; Peiris, Malik; Yu, Hongjie; Chen, Enfu

doi:10.3201/eid2204.151561

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Nosocomial Co-Transmission of Avian Influenza A(H7N9) and A(H1N1)pdm09 Viruses between 2 Patients with Hematologic Disorders

Published Date:

Apr 2016

Publisher's site:

http://dx.doi.org/10.3201/eid2204.151561 New Site Icon

Source:

Emerg Infect Dis. 22(4):598-607.

[PDF-848.09 KB]

Details:

Personal Authors:

Chen, Huazhong ; Liu, Shelan ; Liu, Jun ; Chai, Chengliang ; Mao, Haiyan ; ... More ▼

Keywords:

[+]

Pubmed ID:

26982379

Pubmed Central ID:

PMC4806937

Description:

A nosocomial cluster induced by co-infections with avian influenza A(H7N9) and A(H1N1)pdm09 (pH1N1) viruses occurred in 2 patients at a hospital in Zhejiang Province, China, in January 2014. The index case-patient was a 57-year-old man with chronic lymphocytic leukemia who had been occupationally exposed to poultry. He had co-infection with H7N9 and pH1N1 viruses. A 71-year-old man with polycythemia vera who was in the same ward as the index case-patient for 6 days acquired infection with H7N9 and pH1N1 viruses. The incubation period for the second case-patient was estimated to be <4 days. Both case-patients died of multiple organ failure. Virus genetic sequences from the 2 case-patients were identical. Of 103 close contacts, none had acute respiratory symptoms; all were negative for H7N9 virus. Serum samples from both case-patients demonstrated strong proinflammatory cytokine secretion but incompetent protective immune responses. These findings strongly suggest limited nosocomial co-transmission of H7N9 and pH1N1 viruses from 1 immunocompromised patient to another.

Document Type:

Journal Article

Collection(s):

Emerging Infectious Diseases

Supporting Files:

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