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.
Epidemiological update: Human infection with avian influenza A(H7N9) virus, China
On 4 February 2015, the National Health and Family Planning Commission (NHFPC) of China notified WHO of 83 additional laboratory-confirmed cases of human infection with avian influenza A(H7N9) virus. Onset dates ranged from 20 December 2014 to 27 January 2015.
Recent upsurge of A(H7N9) cases in China, updated rapid risk assessment
A steep increase of human cases of avian influenza A(H7N9) has been reported since the beginning of December 2016 from China. At present, the most immediate threat to EU citizens is to those living or visiting influenza A(H7N9)-affected areas in China concludes the updated rapid risk assessment.
Rapid risk assessment: Human fatality from highly pathogenic avian influenza A(H5N1) virus infection in Guangdong province, China
Following reports of a human fatality due to highly pathogenic avian influenza A(H5N1) virus infection in China’s Guangdong province, the European Commission requested an update to the assessment of risk of human-to-human transmission occurring. ECDC does not consider that there is any change to the previous assessments that the risk for EU/EEA countries is very low.
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.
Diagnostic preparedness in Europe for detection of avian influenza A(H7N9) viruses
In China, a novel avian-origin reassortant influenza A(H7N9) virus has been detected in a number of human cases.
Rapid risk assessment on influenza A(H7N9) China, 12 April 2013
On 31 March 2013, Chinese authorities announced the identification of a novel reassortant A(H7N9) influenza virus isolated from three unlinked cases of severe respiratory disease in eastern China. This is the first time that human infection with avian influenza virus A(H7N9) has been identified.
Since then, human cases have continued to be reported from eastern China. As of 11 April, there were 38 laboratory-confirmed cases including ten deaths reported from four bordering provinces with a concentration of cases in and around Shanghai. Cases occur sporadically, without obvious epidemiological links. There is currently no confirmed human-to-human transmission.
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.
Communicable disease threats report, 16-22 April 2017, week 16
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 16-22 April 2017 and includes updates on influenza, cholera, poliomyelitis, measles, legionnaires' disease and yellow fever.
- Avian influenza virus
- Food- and Waterborne Diseases and Zoonoses Programme
- Influenza and other Respiratory Viruses Programme
- Influenza in humans, seasonal
- Legionnaires’ disease
- Public health threat
- South America
- Vaccine Preventable Diseases Programme
- Yellow fever