The numbers are increasing; this time – diphtheria in Australia. You will note in the article that diphtheria was brought under control in 1932 after school vaccines was implemented.
This attack is primarily against Indigenous Australians, similar to Ebola in Africa.
There seems to be the possibility of a rogue lab somewhere. As in some scientist pissed-off over how China got away with Covid.
https://news.sky.com/story/australia-faces-biggest-diphtheria-outbreak-in-decades-13546167