The respiratory illnesses occurred in 2022 and 2023 and involved the Corynebacterium ulceran bacterium, which is closely related to the germ that causes diptheria. One recent Japanese study noted ...

Diphtheria is a highly contagious bacterial infection spread through direct contact with infected sores or ulcers but primarily through breathing in respiratory droplets.

Diphtheria is a notifiable, vaccine-preventable infectious disease caused by toxin-producing bacteria, primarily Corynebacterium diphtheriae and Corynebacterium ulcerans.

In Nigeria’s northern state of Kano, doctors and health workers are grappling with one of the worst diphtheria outbreaks in recent times. Cases have been reported in the country since May of ...