Especially, tuberculosis is one type of the infectiousdiseases that can spread in the air and infect one person to another through therespiration, everyone has to test the tuberculosis test to know if he or she alreadyaffected by tuberculosis or not. The medical person injects a small amount ofliquid which is called tuberculin into the under of people’s arm. Duringinjected, there is a small pale scar appeared shows the tuberculin is alreadytransmitted into the body. Any people who have the tuberculosis test has toreturn to the healthcare or hospital in order to let the healthcare worker takea ruler to check for the length of the pale scar. It determines the scale forthe result of a positive and negative skin test.
The positive skin testdemonstrates that person is completely infected with tuberculosis bacteria, andhe or she has to do more additional tests because tuberculosis has two typeswhich are TB disease and latent TB infection. Therefore, ifthe patients are affected by the tuberculosis bacteria, there is a BCG known asBacillus Calmette-Guerin is a vaccine for tuberculosis can create activeimmunity fight against this disease. It’s only used for cases of tuberculosisdisease because it creates a high amount of TB prevent against meningitis andmilitary that relies upon childhood.