Plague from China

``The Black Death began in Europe in 1347 and carried off an estimated 30 percent or more of the population of Europe. For centuries the epidemic continued to strike every 10 years or so, its last major outbreak being the Great Plague of London from 1665 to 1666. The disease is spread by rats and transmitted to people by fleas or, in some cases, directly by breathing.''

NYT

And then it came to America. Most Mexicans here died from the now we know, Chinese rats.