![Doctor holding up a plague test tube.](https://cdn.healthyhabits.care/wp-content/uploads/2020/03/Plague-6.jpg)
The Third Plague
The third major bubonic place ever to ravage humanity killed over 12 million people and spread to every continent. In India alone, it is said to have caused over 10 million casualties, though the name implies the fact that it is the third outbreak of its kind to affect Europe.
Starting in Yunnan, China in 1855 the plague was considered active until 1960. Experts say that it came from two different sources, though oceanic trade routes and through person to person contagion.
The first source was primarily bubonic and was likely caused by rats, fleas and already infected people, transported around the globe through shipments. The second source was more virulent and pneumonic in nature, though it was largely contained within Asia.