TB is the largest single cause of death from infectious disease in the U.S.
The tiny rod-shaped bacilli travel in the moist particles in one’s breath. They stay suspended in the air until sucked into another person’s lungs.
Although the body fights off most of the TB bacilli, the remaining germs wait for a sign of weakness to reproduce again. By trying to kill the germ, the body kills some healthy lung cells leading to many different cases, all concluding in death.
Bubonic plague cannot spread from person to person without a flea to carry it. The flea will bite a rat, the rat will transport the disease, another flea will bite the rat and transport the disease to the human.
Many people did understand the spread of the disease making it even easier for the infected rats to board ships and spread the disease to areas across the seas.
Once a flea bites a person the lymph drainpipes carry the plague to the nearest lymph nodes. The nodes swell because of the battle between the bacilli toxins and the immune system cells. One quarter to one half of the bubonic plague victims will survive.
Was first discovered in homosexual males in their thirties, but now it affects people of all genders, race, and age.
AIDS does not show symptoms for many years and during those years it can infect other people. It destroys the person’s immune system making them more vulnerable to other diseases which usually kill them.
AIDS is spread through the sharing of bodily fluids where the virus can easily go from the infected body to another.
Drugs have been found to prevent symptoms, but nothing is able to cure this devastating disease yet.