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.
A steep increase of human cases of avian influenza A(H7N9) has been reported since the beginning of December 2016 from China. During this wave, the number of human cases is already higher than during the last two waves in 2014–15 and 2015–16. The majority of recently reported human cases are associated with exposure to infected live poultry or contaminated environments, including markets where live poultry are sold. Influenza A(H7N9) viruses continue to be detected in poultry and their environments in the areas where human cases are occurring. In addition, the human cases are more geographically widespread and cases are also reported from rural areas, unlike in previous epidemics.
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. Caution should be taken by people travelling to China to avoid direct exposure to poultry, live poultry markets or backyard farms.
The recent upsurge of human cases indicates the possibility of imported cases to Europe. However, the risk of the disease spreading within Europe between humans remains low as the virus does not appear to transmit easily from human to human: investigations do not support sustained human-to-human transmission.
Travellers that visited affected areas and develop respiratory symptoms and fever within up to 10 days after their return should consult a physician and inform him/her about their recent travel history to facilitate early diagnosis and treatment.
People in the EU presenting with severe respiratory or influenza-like infection and a history of travel to the affected areas in China– with potential exposure to poultry or live bird markets – will require careful investigation, management and infection control. Adequate samples for influenza tests should be rapidly taken and processed from patients with relevant exposure history within 10 days preceding symptom onset. Early or presumptive treatment with neuraminidase inhibitors should be considered for suspect or confirmed cases, in line with relevant national and international recommendations. Contacts of confirmed cases should be followed-up and tested. Offering post-exposure prophylaxis should be considered.
WHO recommendations for influenza virus vaccine composition for the 2019–2020 northern hemisphere season
1 Mar 2019 - On 18–20 February 2019, the World Health Organization (WHO) agreed on the recommended composition of the quadrivalent influenza vaccine for the northern hemisphere 2019–2020 influenza season: an A/Brisbane/02/2018 (H1N1)pdm09-like virus, an A(H3N2) virus component to be announced on 21 March 2019, a B/Colorado/06/2017-like virus (B/Victoria/2/87 lineage) and a B/Phuket/3073/2013-like virus (B/Yamagata/16/88 lineage).
Influenza vaccination coverage rates insufficient across EU Member States
18 Dec 2018 - None of the European Union (EU) Member States could demonstrate that they reach the EU target of 75% influenza vaccination coverage for vulnerable groups, according to a new report from the European Centre for Disease Prevention and Control (ECDC).