Back فيروس الإنفلونزا أ H7N9 Arabic Vogelgrippe H7N9 German Influenzavirus A subtipo H7N9 Spanish Virus de la grippe A (H7N9) French 甲型流感病毒H7N9亞型 GAN 甲型流感病毒H7N9亞型 HAK H7N9 Icelandic Influenzavirus A sottotipo H7N9 Italian H7N9亜型 Japanese H7N9 Korean
 | This article's factual accuracy may be compromised due to out-of-date information. (December 2020) |
| Influenza A virus subtype H7N9 | |
|---|---|
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Negarnaviricota |
| Class: | Insthoviricetes |
| Order: | Articulavirales |
| Family: | Orthomyxoviridae |
| Genus: | Alphainfluenzavirus |
| Species: | |
| Serotype: | Influenza A virus subtype H7N9
|
| Influenza (flu) |
|---|
 |
 Electron micrograph of Influenza A (H7N9). | |
| Date | March 31, 2013–present |
|---|---|
| Location |  China: Anhui, Jiangsu, Zhejiang, Hangzhou, Hunan, Jiangxi, Fujian, Beijing, Guangdong  Hong Kong  Taiwan  Malaysia[1] |
| Casualties | |
| 619 deaths (as of 25 October 2017) | |
| 1622 cases (as of 25 October 2017) | |
Influenza A virus subtype H7N9 (A/H7N9) is a bird flu strain of the species Influenza virus A (avian influenza virus or bird flu virus). Avian influenza A H7 viruses normally circulate amongst avian populations with some variants known to occasionally infect humans. An H7N9 virus was first reported to have infected humans in March 2013, in China.[2] Cases continued to be reported throughout April and then dropped to only a few cases during the summer months. At the closing of the year, 144 cases had been reported of which 46 had died.[3][4][5] It is known that influenza tends to strike during the winter months, and the second wave, which began in October, was fanned by a surge in poultry production timed for Lunar New Year feasts that began at the end of January. January 2014 brought a spike in reports of illness with 96 confirmed reports of disease and 19 deaths.[6][7] As of April 11, 2014, the outbreak's overall total was 419, including 7 in Hong Kong, and the unofficial number of deaths was 127.[8][9][10]
- ^ "H7N9 Case Detected in Malaysia". CDC. February 12, 2014. Archived from the original on June 27, 2017. Retrieved February 18, 2014.
Still no sustained human-to-human spread; risk assessment unchanged
- ^ Cite error: The named reference
Naturewas invoked but never defined (see the help page). - ^ "Hong Kong's first case of deadly H7N9 bird flu virus confirmed". SCMP. December 3, 2013. Archived from the original on December 3, 2013. Retrieved December 3, 2013.
- ^ "Hong Kong sees second case of H7N9 bird flu in a week". SCMP. December 6, 2013. Archived from the original on December 7, 2013. Retrieved December 7, 2013.
- ^ WHO: Global Alert and Response: Human infection with avian influenza A(H7N9) virus – update Archived April 28, 2014, at the Wayback Machine (accessed November 7, 2013)
- ^ "H7N9 bird flu resurges in China ahead of Lunar New Year - CNN.com". CNN. January 30, 2014. Archived from the original on January 31, 2014. Retrieved January 30, 2014.
- ^ "H7N9 Bird Flu Not Just a China Problem – TIME.com". Time. Archived from the original on January 31, 2014. Retrieved January 30, 2014.
- ^ "Study says Vietnam at H7N9 risk as two new cases noted". March 17, 2014. Archived from the original on December 28, 2016. Retrieved March 23, 2014.
- ^ Commonground (February 7, 2014). "Pandemic Information News: #H7N9 Human Cases 2014". Archived from the original on March 10, 2014. Retrieved February 7, 2014.
- ^ "WPRO|Human Infection with Avian Influenza A(H7N9)". Archived from the original on February 2, 2014. Retrieved February 18, 2014.
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