Mutation of avian influenza A(H7N9): now highly pathogenic for poultry but risk of human-to-human transmission remains low
The upsurge of human cases in China during the winter 2016-2017 due to A(H7N9) gives cause for concern.
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.
Epidemiological update: increase in reporting of human cases of A(H5N1) influenza, Egypt, 9 April 2015
Epidemiological update: increase in reporting of human cases of A(H5N1) influenza, Egypt
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.
Very low public health threat related to outbreak of avian influenza A(H5N8) in turkeys in Germany
The risk of transmission of avian influenza A(H5N8) to the general public in the EU/EEA countries is extremely low.
Epidemiological update: H3N2v cases in Ohio, US, 4 September 2014
In August 2014, the US Centers for Disease Control and Prevention (CDC) reported two laboratory-confirmed human infections with a A(H3N2) variant influenza virus of swine origin A(H3N2)v in Ohio, USA.
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: avian influenza A(H5N1), 8 January 2014
On 8 January 2014, Canada reported a fatal imported case of influenza A(H5N1) infection. This is the first confirmed human case of H5N1 in North America.