From one – 10 The Worlds Worst Historical Diseases.
This article is designed to increase your awareness and inform you about some of the worst diseases to ever hit the earth. Some have completely disappeared, some barely noticed, many curable, but some that go untreated/untreatable which take the lives of countless people every year, every month, every week, every day, every hour, and even every minute. Some even belong in seconds. That is just how effective some of these diseases are.
Bubonic plague is mainly a disease in rodents and fleas (Xenopsylla cheopsis). Infection in a human occurs when a person is bitten by a flea that has been infected by biting a rodent that itself has been infected by the bite of a flea carrying the disease. The bacteria multiply inside the flea, sticking together to form a plug that blocks its stomach and causes it to begin to starve. The flea then voraciously bites a host and continues to feed, even though it can not quell its hunger, and consequently the flea vomits blood tainted with the bacteria back into the bite wound. The bubonic plague bacterium then infects a new victim, and the flea eventually dies from starvation. Any serious outbreak of plague is usually started by other disease outbreaks in rodents, or a rise in the rodent population.
250 Million Europeans Dead (1/3 population)
Click any one of these diseases to find out more about the disease: