Representatives from China, FAO, OIE and WHO agreed on a standardized terminology for the H7N9 influenza virus detected in China. For scientific reports, the term "avian influenza A(H7N9) virus" will be used, and can be modified to specify the type of infection, such as "human infection caused by the avian influenza A(H7N9) virus". For media like Twitter, shorter terms like "H7N9" or "H7N9 virus" can be used.

1. Laboratory
H7N9 Virus Nomenclature
 Consultations among representatives of China, FAO, OIE and WHO and their
expert groups agreed on a standardized terminology for the influenza A
H7N9 virus recently detected in China. The discussions took into account
several consideration including science, agricultural and public health
perspectives, communications and practices already established.
 For scientific / technical or other reports, all of the participating
organizations will use the term
"avian influenza A(H7N9) virus"
 The core term can be further modified according to specific
circumstances. For example:
o "human infection (or disease) caused by the avian influenza A(H7N9)
virus"
o "chicken infection (or disease) caused by the avian influenza A(H7N9)
virus"
o "swine infection (or disease) caused by the avian influenza A(H7N9)
virus" - if detected in swine
 For media communications, especially recognizing that social media such as
twitter will gravitate towards use of shortest possible terms, it is suggested
that terms such as "H7N9", "H7N9 virus" be used as surrogates as needed.
4/10/2013 1
Data are Provisional Until Officially Released by the CDC Internal Use Only (FIUO)---For Official Use Only (FOUO) -Sensitive But Unclassified (SBU) - NOT FOR FURTHER DISTRIBUTION
This report includes information received by 1200 EDT on the date of the report