Overview
- The Robert Koch Institute (RKI) has confirmed 126 diphtheria cases in Germany as of late April 2025, marking a significant increase in infections.
- The outbreak is driven by the bacterial strain Corynebacterium diphtheriae ST574, with genomic data indicating domestic transmission across regions and populations.
- Vulnerable groups, including homeless, unvaccinated individuals, and older adults with pre-existing conditions, are increasingly affected alongside refugee communities.
- Severe and fatal cases of respiratory diphtheria are rising, prompting heightened concern among health authorities.
- The RKI urges increased testing, contact tracing, and vaccination efforts, emphasizing the importance of booster immunizations to close immunization gaps.