| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | corynebacterium diphtheriae | Western countries | Extensive vaccination programs and historical relevance of diphtheria outbreaks have led to corynebacterium diphtheriae being rare in Western countries. | 4 |
| 2 | corynebacterium diphtheriae | Developing countries | Corynebacterium diphtheriae remains a significant concern in developing countries with lower vaccination rates and limited access to healthcare. | 1 |