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. 2025 Mar;31(3):547–554. doi: 10.3201/eid3103.241217

Table. Demographic and clinical characteristics of 16 Corynebacterium diphtheriae cases among persons experiencing homelessness, Frankfurt am Main, Germany, February–October 2023*.

Case no. Demographics
Toxigenic status
Symptoms
Substance abuse
Age group, y Sex Country of origin Pharynx Wound Respiratory Wound Alcohol IV drugs
1† 26–35 F Germany + UNK Y Y N Y
2† 26–35 M Afghanistan + N Y N Y
3† 36–45 M Germany + N Y Y Y
4† >60 M Poland + N Y Y N
5† 36–45 F Poland + N Y Y N
6† 46–60 M Poland + N Y Y N
7 26–35 M Germany N Y N Y
8 36–45 M Germany N Y Y Y
9 36–45 F Germany Y Y Y N
10 46–60 F UNK N Y Y N
11 36–45 M UNK Y Y N Y
12 46–60 M UNK N Y Y Y
13 46–60 M Poland N Y Y N
14 46–60 M Germany Y Y N Y
15 36–45 M Germany N Y Y Y
16 36–45 M Germany N Y N Y

*Probable and confirmed cases are shown. IV, intravenous; UNK, unknown. †Previously reported confirmed cases.