European Immunization Week (EIW) is marked across Europe every year in the final week of April. It aims to raise awareness of the importance of immunisation for the general health and well-being of the European and wider population.
In connection with the European Immunization Week, ECDC releases data indicating an increase in cases of vaccine-preventable diseases such as measles and pertussis, after decreased levels during the COVID-19 pandemic.
Since January 2022, and as of 11 August 2023, 281 confirmed diphtheria cases, as per the EU case definition (2022: 224 cases, 2023: 57 cases), and four deaths were reported in the EU/EEA.
Since April 2023, over 300 shigellosis cases, many with multidrug-resistant Shigella sonnei -infections, have been reported to the European Centre for Disease Prevention and Control (ECDC).
Increased numbers of shigellosis cases, mainly caused by Shigella sonnei, among travellers returning from Cabo Verde, have been reported in the EU/EEA, the United Kingdom (UK) and the United States (US) since September 2022.
As of 26 September 2022, 92 cases of diphtheria among migrants, including a fatal one, have been reported this year by seven European countries – Austria, Germany, United Kingdom, Norway, Belgium, France and Switzerland.
An outbreak of diphtheria is currently being experienced in Yemen and Venezuela. One hundred and twenty diphtheria cases have been reported in Yemen in the last two months, while Venezuela has seen more than 500 probable cases in 2017, as detailed in today’s Communicable Disease Threat Report.
This ECDC gap analysis demonstrates that there are potentially significant gaps in diphtheria diagnostic capacity within the EU/EEA in terms of surveillance, specialised laboratory diagnostics, expertise and availability of diphtheria antitoxin (DAT). The results highlight the importance of sound surveillance systems for diphtheria and laboratory personnel training, as well as the need to ensure access to immunisation and high vaccination coverage rates.