Overview of the Week 52 Diphtheria Situation (2025) In the latest diphtheria situational report, covering week 52 of 2025, health authorities summarize key developments from 1 January 2024 through 28 December 2025. The report, issued to guide public health action, notes 87 confirmed cases of respiratory diphtheria, 2 probable respiratory diphtheria cases, and 60 asymptomatic…