Epidemiological update: A(H7N9) influenza virus, China, 19 December 2013
In March 2013, Chinese authorities announced the identification of a novel reassortant A(H7N9) avian influenza virus in patients in eastern China.
Epidemiological update A(H7N9) influenza, 6 February 2014
In March 2013, Chinese authorities announced the identification of a novel reassortant A(H7N9) influenza virus in patients in eastern China. Since then, human cases have continued to be reported, and as of 7 February 2014 (Figure 1), there have been 308 laboratory-confirmed cases: Zhejiang (122), Guangdong (54), Shanghai (42), Jiangsu (36), Fujian (19), Hunan (7), Jiangxi (5), Henan (4), Anhui (4) ,Beijing (3), Shandong (2), Hebei (1), Guangxi (2), Guizhou (1), Hong Kong (4) and Taiwan (2). In addition, the virus has been detected in one asymptomatic case in Beijing.
Threats and outbreaks of zoonotic influenza diseases
Disease threats and outbreaks reports; Communicable disease threats report, Risk assessments.
Human infection with a novel avian influenza virus, A(H7N9), China - 2nd update, 8 May 2013
This second update to ECDC's initial risk assessment concludes that the risk of the disease spreading to Europe via humans or through poultry is still low at this time.
Rapid risk assessment: Severe respiratory disease associated with a novel influenza A virus, A(H7N9) China
On 31 March 2013, the Chinese authorities announced the identification of a novel influenza A virus, A(H7N9), in three seriously ill people from two provinces presenting with respiratory infections. So far, no epidemiological link has been identified between those three patients. When testing for the influenza virus, the Chinese Center for Disease Control and Prevention identified genes from both A(H7N9) and A(H9N2) viruses, thus indicating a novel reassortant avian influenza A virus. In its initial assessment of the situation, the ECDC rapid risk assessment concludes that the risk of the spread of the virus in Europe can be considered low at this stage.
Influenza A(H7N9) virus in China - implications for public health - 7th update, 3 July 2017
Since the notification of a novel reassortant influenza A(H7N9) virus on 31 March 2013, 1 548 laboratory-confirmed cases of human infection with avian influenza A(H7N9) virus have been reported.
Communicable Disease Threat Report, 2 - 9 September 2017, week 36
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 27 August - 2 September 2017 and includes updates on measles, MERS, West Nile fever and Chikungunya.
Communicable disease threats reports on avian influenza viruses
The ECDC Communicable Disease Threats Report (CDTR) is a weekly bulletin for epidemiologists and health professionals on active public health threats.
Epidemiological updates on avian influenza viruses
Situation updates on a currently evolving outbreak or a public health threat. The epidemiological updates typically contain a description of case numbers, temporal and geographic distribution, as well as age and sex distribution. It can also include information on the identified or potential risk factors and assessments.
Risk assessments on avian influenza viruses
Rapid risk/outbreaks assessment aim at supporting the countries and the European Commission in their preparedness and response to a public health threat. They provide a timely summary and risk assessment of a public health threat for EU/EEA countries related to a specific event. They also include potential options for response. As outbreaks or public health events develop, ECDC may issue updated risk assessments.