The Black Plague is a bacteria found inside rodents and fleas. But because of their fleas it can sometimes infect humans.The cause of the black plague wasn’t discovered until mid 1850’s from the global outbreak. It started in China in the year 1855 and didn’t officially end until 1959. A few years later after 1894 doctors noticed that rats showed similar plague symptoms compared to people. The different varieties of animals that can cause the plague includes mice, camels, chipmunks, prairie dogs, rabbits, and squirrels, but the most dangerous for humans are rats.

Bubonic plague- the disease’s most common form, it starts with painfully swollen lymph nodes

Septicemic plague- which spreads through the bloodstream, it comes either from fleas or having contact with the plague from something living

Pneumonic plague, the most infectious out of all three, it’s an advanced stage of bubonic plague when the disease starts being passed directly or through airborne droplets coughed from the lungs.

If left untreated, the bubonic plague kills about 50% of those who are infected. The other two forms of plague are more than likely fatal without antibiotics. Pestis needs strength and the ability to disable its victim’s immune system. It does this by injecting toxins into cells that are able to detect bacterial infections. Once these cells are knocked out, the bacteria can multiply. If they are given the right antibiotics people are able to heal and survive in time. Sanitation and pest control will help prevent bringing back the plague.

As the disease becomes greater the symptoms become more worse within time, when not treated. Including:

• Severe Migraines

• Coughing up blood

• Increased Breathing

• Difficulty Breathing

• Respiratory Failure

• Rapid Heart Rate

• Delerium