The bubonic plague killed about a third of Europe's population in the middle ages.
The Black Death, almost unheard of in the developed world now, is still a problem in parts of Africa and Asia.
Madagascar is one of the worst affected countries. The plague strikes in the rainy season and has already killed at least 39 people this year.
Al Jazeera's Tania Page reports from Antananarivo.
Source: Al Jazeera