The “Third Pandemic” is the name given to a major plague pandemic that began in the Yunnan province (pictured above) in China in 1855. This episode of bubonic plague spread to all inhabited continents, and ultimately killed more than 12 million people in India and China alone.
According to the World Health Organization, the pandemic was considered active until 1959, when worldwide casualties dropped to 200 per year. The bubonic plague was endemic in populations of infected ground rodents in central Asia, and was a known cause of death among migrant and established human populations in that region for centuries; however, an influx of new people due to political conflicts and global trade led to the distribution of this disease throughout the world. New research suggests Black Death is lying dormant.