For 2021, three EU/EEA countries reported seven cases of Zika virus (ZIKV) disease, the lowest number ever reported since the start of the EU/EEA surveillance in 2016.
The mosquito species Aedes albopictus, a known vector of chikungunya and dengue viruses, is establishing itself further northwards and westwards in Europe, according to the latest data.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 21-27 May 2023 and includes updates on COVID-19, influenza, Marburg virus disease, poliomyelitis, extensively drug-resistant Pseudomonas aeruginosa, and suspected fungal meningitis.
Following a peak at week 51/2022, influenza activity had been decreasing across the Region until week 4/2023, before rising again to fluctuate around 25% positivity between weeks 6 and 11/2023 and decreasing below 10% positivity in week 16/2023.