1. Tuberculosis

2. Tuberculosis (TB) is a bacterial infection. It is spread by droplets of saliva from the coughs or sneezes of an infected person being inhaled. It can also be contracted from the milk or meat of cattle which have been infected. Mycobacterium tuberculosis is the bacteria responsible for TB. Mycobacterium tuberculosis are very slow moving, so a person may not experience any symptoms for many months, or even years, after becoming infected. TB primarily affects the lungs (pulmonary TB). However, the infection is capable of spreading to many different parts of the body, such as the bones or nervous system.

3. Typical signs of tuberculosis are:  chronic or persistent coughing.  Fatigue-tiredness.  lack of appetite.  weight loss.  fever.  night sweats. Tuberculosis can mimic many forms of disease and must always be considered if no firm diagnosis has been made.

5.  Tuberculosis (TB) is caused by a strain of bacteria called mycobacterium tuberculosis as mentioned before.  It is spread from person to person through airborne particles in the air.  TB is spread when a person with an active infection of TB in their lungs coughs or sneezes, and somebody else inhales a droplet of contaminated saliva. However, despite being spread in the same way as a cold or the flu, TB is not as contagious.  It is not guaranteed, though, that you will become infected with TB if you inhale the infected particles. Some people have strong enough immune systems that quickly destroy the bacteria once they enter the body.  Others will develop latent TB infection and will carry the bacteria but will not be contagious and will not present symptoms. Still others will become immediately sick and will also be contagious.  You would usually need to spend a prolonged period of time in close contact with an infected person before you contracted the TB infection yourself.  For example, infections usually spread between family members who are living in the same house. It would be highly unlikely that you would contract a TB infection by sitting next to an infected person on a bus or train.

6.  Overcrowding.  Poor ventilation.  Poor health, especially if the person has HIV/AIDS.  Poor diet.  Homelessness.  Working with people with TB.

7.  Tuberculosis is transmitted by respiratory way; an infected person will emit while coughing or sneezing and the person in immediate proximity will inhale the particles that will get to the lungs and multiply causing the infection. In more simple terms;  TB+Coughing+Breathing+Lungs=   The likelihood of infection depends on the time spent in close contact with the person with active disease.  The process of infection progresses to disease in about ten percent of those infected, and it can happen any time during the remainder of their lives.  It is thought that in the world, at least 30% of the population have TB.  Another less common transmission type is through the skin in laboratory workers and pathologists. They contact Mycobacterium through skin injuries while handling infected tissues, then they get infected.  Cases of Tuberculin infection have been found also in circumcisions made with unsterilized instruments or in people with tattoos given in unhygienic environments.

8.  TB killed 1.7 million people in 2006.  It hits poor countries. TB is a disease of poverty that disproportionately affects poor countries.  Ninety-five percent of all TB cases and ninety-eight percent of all TB deaths occur in developing countries, with most deaths occurring in sub- Saharan Africa and Asia.  Tools to diagnose, treat, and cure TB are outdated. The newest TB drug is 40 years old; the standard diagnostic technology used in developing countries is 100 years old; and the BCG vaccine, with almost no protective effect in adults, was introduced in 1921.  Without new tools, TB will not be eliminated and will continue to be a public health problem.  But, TB is treatable.

10. This is a deer with TB in the lungs. Pretty grim.