Haemophilus influenzae disease - Annual Epidemiological Report for 2023
In 2023, 5 234 confirmed cases of invasive Haemophilus influenzae disease were reported in the EU/EEA, representing a continued increase compared to the previous year (3 983 in 2022) and a substantial rise from pandemic-era figures (1 693 in 2021, 1 838 in 2020), coinciding with the post-COVID-19 return to typical respiratory disease transmission patterns.
- The notification rate rose to 1.2 cases per 100 000 population, the highest observed in the past five years, up from 0.9 in 2022 and 0.4 in both 2020 and 2021.
- Age-specific rates remained highest among infants under one year of age (6.41 per 100 000 population), followed by those aged 65 years and older (3.2 per 100 000 population).
- Serotyping data were available for 60% of cases. Among cases with known serotype, non-capsulated strains continued to dominate, accounting for 81% of infections. Serotype f was the most frequent capsulated strain, responsible for 6% (194 cases) of all cases, followed by serotype b 5% (164 cases)
- In 2023, serotype b (Hib) represented 5% of known serotyped cases, reflecting a slight decline from 9.1% in 2022. The low proportion of serotype b (Hib) reported continues to reflect the strong effect of the Hib vaccination programmes in EU/EEA countries.
Download
All annual epidemiological reports on Haemophilus influenzae disease
Salmonellosis - Annual Epidemiological Report for 2023
Salmonellosis is the second most commonly reported gastrointestinal infection in the European Union/European Economic Area (EU/EEA), and the most common cause of food-borne outbreaks with a known pathogen.
Pertussis - Annual Epidemiological Report for 2023
In 2023, 26 033 cases of pertussis were reported by 29 EU/EEA countries.
Tetanus - Annual Epidemiological Report for 2023
In 2023, 73 tetanus cases were reported in the European Union/European Economic Area (EU/EEA), of which 13 (18%) were confirmed cases.
Mumps - Annual Epidemiological Report for 2023
For 2023, 2 963 cases of mumps were reported to ECDC by 27 EU/EEA Member States with an overall notification rate of 0.7 cases per 100 000 population.
STEC infection cases - Annual Epidemiological Report for 2023
For 2023, 30 European Union/European Economic Area (EU/EEA) countries reported 10 901 confirmed cases of Shiga toxin-producing Escherichia coli (STEC) infection.
