Chikungunya is not endemic in the EU/EEA and the majority of the cases are travellers infected outside of the EU/EEA. When the environmental conditions are favourable, in areas where Ae. albopictus is established, viraemic travel-related cases may generate a local transmission of the virus as demonstrated by the sporadic events of chikungunya virus transmission since 2007.
This issue of the Communicable Disease Threats Report (CDTR) covers the period 23-29 January 2023 and includes updates on COVID-19, diphtheriae, influenza, chikungunya, dengue and poliomyelitis.
Salmonellosis is the second most commonly reported gastrointestinal infection, and an important cause of food-borne outbreaks in the EU/EEA. In 2019, 89 066 laboratory-confirmed cases of salmonellosis were reported, out of which 139 were fatal.
For 2020, 28 countries reported 1 647 cases of hantavirus infection (0.4 cases per 100 000 population), mainly caused by Puumala virus (98%). During the period 2016–2020, the overall notification rate fluctuated between 0.4 and 1.0 cases per 100 00 population, with no obvious long-term trend.
This issue of the CDTR covers the period 18-24 December 2022 and includes updates on chikungunya, cholera, COVID-19, dengue, C. diphtheriae, Ebola, influenza A(H5N1), Influenza A(H9N2), mass gathering monitoring, Mpox, swine influenza.
Hepatitis A cases in 2021 were at their lowest levels since EU-level hepatitis A surveillance began in 2007, while five other food and waterborne diseases are rising towards pre-pandemic levels. The information is revealed in the Annual Epidemiological Report 2021, of which six chapters are published today by ECDC.
For 2021, 6 534 confirmed cases of STEC infection were reported by 30 EU/EEA countries (Table 1). Twenty-seven countries reported at least two confirmed cases, and three countries reported no cases. The EU/EEA notification rate was 2.2 cases per 100 000 population, representing a 37.5% increase compared with the previous year.