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China has confirmed first ever human case of H7N4 bird flu Photograph: Kin Cheung/AP
CLICK HERE - The Government of Hong Kong Special Administrative Region - Press Release
A 68-year-old patient from Jiangsu province, who has since recovered, developed symptoms on Christmas Day and was admitted to hospital
theguardian.com - by Tom Phillips - February 15, 2018
A woman from eastern China has been confirmed as the first ever human case of H7N4 bird flu, according to Chinese authorities . . .
. . . The 68-year-old patient from Jiangsu province, who has since recovered, developed symptoms on 25 December, was admitted to hospital for treatment on 1 January and was released on 22 January.
“She had contact with live poultry before the onset of symptoms,” Hong Kong’s centre for health protection (CHP) said in an alert on Wednesday evening. “According to a report from the Chinese centre for disease control and prevention, upon analysis, the genes of the virus were determined to be of avian origin.”
(CLICK HERE - READ COMPLETE ARTICLE)
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First Human Case - New Bird Flu: How Many More Strains Out There
npr.org - by Michaeleen Doucleff - February 15, 2018
. . . the new case does add to a growing list of bird flu strains to keep an eye on . . .
. . . Influenza comes in three basic types: A, B and C . . .
. . . Hemagglutinin and neuraminidase are little protein spikes on the flu's surface that help it invade cells . . .
. . . Each flu picks out one style from the N rack and another from the H rack . . .
. . . All told, there are 144 different subtypes of influenza A: from H1N1 to H9N16.
CLICK HERE - READ COMPLETE ARTICLE - First Human Case From New Bird Flu: How Many More Strains Are Out There?
CDC - Influenza Type A Viruses - Subtypes of Influenza A Viruses
cdc.gov
Influenza Type A Viruses
There are four types of influenza viruses: A, B, C and D. Wild aquatic birds – particularly certain wild ducks, geese, swans, gulls, shorebirds and terns – are the natural hosts for most influenza type A viruses.
Subtypes of Influenza A Viruses
Influenza A viruses are divided into subtypes on the basis of two proteins on the surface of the virus: hemagglutinin (HA) and neuraminidase (NA). There are 18 known HA subtypes and 11 known NA subtypes. Many different combinations of HA and NA proteins are possible.
https://www.cdc.gov/flu/avianflu/influenza-a-virus-subtypes.htm