Tuberculosis (TB) is an infectious disease usually caused by the bacterium Mycobacterium tuberculosis (MTB). Tuberculosis generally affects the lungs, but can also affect other parts of the body. Most infections do not have symptoms, known as latent tuberculosis. About 10% of latent infections progress to active disease which, if left untreated, kills about half of those infected. The classic symptoms of active TB are a chronic cough with blood-containing sputum, fever, night sweats, and weight loss. The historical term "consumption" came about due to the weight loss. Infection of other organs can cause a wide range of symptoms. 

One-third of the world's population is thought to be infected with TB. New infections occur in about 1% of the population each year. In 2014, there were 9.6 million cases of active TB which resulted in 1.5 million deaths. More than 95% of deaths occurred in developing countries. The number of new cases each year has decreased since 2000. About 80% of people in many Asian and African countries test positive while 5–10% of people in the United States population tests positive by the tuberculin test. Tuberculosis has been present in humans since ancient times. QUESTIONS:

Q1:
1. What do some parts of the population have?
2. What are segments of the population diagnosed with?
3. 
Q2:
1. What are the symptoms of TB?
2. What does having tuberculosis consist of?
3. 
Q3:
1. What part of the body does TB affect?
2. Where is a tuberculosis infection located?
3. 
Q4:
1. How many deaths did TB cause in 2014?
2. How many people died of tuberculosis in 2014?
3. 
Q5:
1. How many people test positive for TB in America?
2. How many Americans are TB positive?
3. 
Q6:
1. How long has tuberculosis been around?
2. Since when has TB existed?
3. 
Q7:
1. What percent of TB infections are active?
2. What ratio of TB infections progress to the active disease?
3. 
Q8:
1. Is TB deadly?
2. Can you die of tuberculosis?
3. 
Q9:
1. What is the abbreviation for tuberculosis?
2. How can the term tuberculosis be shortened?
3. 
Q10:
1. What percent of the population gets sick with TB every year?
2. What percentage of people get TB yearly?
3. 
